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127 results on '"Lira-Cantú, Mónica"'

6. Decoupling the effects of defects on efficiency and stability through phosphonates in stable halide perovskite solar cells

Author

Xie, Haibing, Wang, Zaiwei, Chen, Zehua, Pereyra, Carlos, Pols, Mike, Gałkowski, Krzysztof, Anaya, Miguel, Fu, Shuai, Jia, Xiaoyu, Tang, Pengyi, Kubicki, Dominik Józef, Agarwalla, Anand, Kim, Hui-Seon, Prochowicz, Daniel, Borrisé, Xavier, Bonn, Mischa, Bao, Chunxiong, Sun, Xiaoxiao, Zakeeruddin, Shaik Mohammed, Emsley, Lyndon, Arbiol, Jordi, Gao, Feng, Fu, Fan, Wang, Hai I., Tielrooij, Klaas-Jan, Stranks, Samuel D., Tao, Shuxia, Grätzel, Michael, Hagfeldt, Anders, and Lira-Cantu, Monica

Published
2021
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8. Supporting Information: Artificial intelligence-based, wavelet-aided prediction of long-term outdoor performance of perovskite solar cells

Author

Kouroudis, Ioannis, Tabah, Kenedy, Karimipour, Masoud, Ben Ali, Aziz, Kishore Kumar, D., Sudhakar, Vediappan, Kant Gupta, Ritesh, Visoly-Fisher, Iris, Lira-Cantú, Mónica, Gagliardi, Alessio, Kouroudis, Ioannis, Tabah, Kenedy, Karimipour, Masoud, Ben Ali, Aziz, Kishore Kumar, D., Sudhakar, Vediappan, Kant Gupta, Ritesh, Visoly-Fisher, Iris, Lira-Cantú, Mónica, and Gagliardi, Alessio

Published
2024

9. Artificial intelligence-based, wavelet-aided prediction of long-term outdoor performance of perovskite solar cells

Author

Ministerio de Educación y Ciencia (España), Agencia Estatal de Investigación (España), Ministerio de Ciencia e Innovación (España), Ministerio de Ciencia, Innovación y Universidades (España), Federal Ministry for Economics Affairs and Energy (Germany), Ministry of Energy (Israel), European Commission, European Research Council, German Research Foundation, Universidad Autónoma de Barcelona, Kouroudis, Ioannis, Tabah, Kenedy, Karimipour, Masoud, Ben Ali, Aziz, Kishore Kumar, D., Sudhakar, Vediappan, Kant Gupta, Ritesh, Visoly-Fisher, Iris, Lira-Cantú, Mónica, Gagliardi, Alessio, Ministerio de Educación y Ciencia (España), Agencia Estatal de Investigación (España), Ministerio de Ciencia e Innovación (España), Ministerio de Ciencia, Innovación y Universidades (España), Federal Ministry for Economics Affairs and Energy (Germany), Ministry of Energy (Israel), European Commission, European Research Council, German Research Foundation, Universidad Autónoma de Barcelona, Kouroudis, Ioannis, Tabah, Kenedy, Karimipour, Masoud, Ben Ali, Aziz, Kishore Kumar, D., Sudhakar, Vediappan, Kant Gupta, Ritesh, Visoly-Fisher, Iris, Lira-Cantú, Mónica, and Gagliardi, Alessio

Abstract

The commercial development of perovskite solar cells (PSCs) has been significantly delayed by the constraint of performing time-consuming degradation studies under real outdoor conditions. These are necessary steps to determine the device lifetime, an area where PSCs traditionally suffer. In this work, we demonstrate that the outdoor degradation behavior of PSCs can be predicted by employing accelerated indoor stability analyses. The prediction was possible using a swift and accurate pipeline of machine learning algorithms and mathematical decompositions. By training the algorithms with different indoor stability data sets, we can determine the most relevant stress factors, thereby shedding light on the outdoor degradation pathways. Our methodology is not specific to PSCs and can be extended to other PV technologies where degradation and its mechanisms are crucial elements of their widespread adoption.

Published
2024

11. Impact of P3HT materials properties and layer architecture on OPV device stability

Author

Meitzner, Rico, Faber, Tobias, Alam, Shahidul, Amand, Aman, Roesch, Roland, Büttner, Mathias, Herrmann-Westendorf, Felix, Presselt, Martin, Ciammaruchi, Laura, Visoly-Fisher, Iris, Veenstra, Sjoerd, Diaz de Zerio, Amaia, Xu, Xiaofeng, Wang, Ergang, Müller, Christian, Troshin, Pavel, Hager, Martin D., Köhn, Sandra, Dusza, Michal, Krassas, Miron, Züfle, Simon, Kymakis, E., Katz, Eugene A., Berson, Solenn, Granek, Filip, Manceau, Matthieu, Brunetti, Francesca, Polino, Giuseppina, Schubert, Ulrich S., Lira-Cantu, Monica, and Hoppe, Harald

Published
2019
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13. Roadmap on commercialization of metal halide perovskite photovoltaics

Author

Collaborative Research Fund (Hong Kong), Ningbo Institute of Materials Technology and Engineering, Zhejiang Provincial Natural Science Foundation, Shenzhen Science and Technology Innovation Commission, Ministry of Education and Science (Kazakhstan), Nazarbayev University, European Commission, Ministero dello Sviluppo Economico, Agence Nationale de la Recherche (France), Ministry of Science and Higher Education of the Russian Federation, National University of Singapore, Department of Energy (US), National Key Research and Development Program (China), National Natural Science Foundation of China, Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), Generalitat de Catalunya, German Research Foundation, Generalitat Valenciana, Natural Science Foundation of Guangdong Province, Tibet Autonomous Region, Feng, Shien-Ping [0000-0002-3941-1363], Yip, Hin-Lap [0000-0002-5750-9751], Zhong, Yufei [0000-0001-9845-8607], Fong, Patrick W. K. [0000-0002-2460-4525], Li, Gang [0000-0001-8399-7771], Ng, Annie [0000-0002-5975-2499], Castriotta, Luigi Angelo [0000-0003-2525-8852], Matteocci, Fabio [0000-0001-7893-1356], Vesce, Luigi [0000-0003-3322-8688], Di Carlo, Aldo [0000-0001-6828-2380], Hou, Yi [0000-0002-1532-816X], Song, Zhaoning [0000-0002-6677-0994], Yan, Yanfa [0000-0003-3977-5789], Ng, Alan Man Ching [0000-0001-7081-8244], Richardson, Giles [0000-0001-6225-8590], Lira-Cantú, Mónica [0000-0002-3393-7436], Khenkin, Mark V. [0000-0001-9201-0238], Visoly-Fisher, Iris [0000-0001-6058-4712], Katz, Eugene A. [0000-0001-6151-1603], Vaynzof, Yana [0000-0002-0783-0707], Vidal, Rosario [0000-0001-7872-0620], Lin, Haoran [0000-0003-0625-8881], Wang, Shifeng [0000-0001-6169-2598], Djurišic, Aleksandra B. [0000-0002-5183-1467], Feng, Shien-Ping, Cheng, Yuanhang, Yip, Hin-Lap, Zhong, Yufei, Fong, Patrick W. K., Li, Gang, Ng, Annie, Chen, Cong, Castriotta, Luigi Angelo, Matteocci, Fabio, Vesce, Luigi, Saranin, Danila, Di Carlo, Aldo, Wang, Puqun, Wei Ho, Jian, Hou, Yi, Lin, Fen, Aberle, Armin G., Song, Zhaoning, Yan, Yanfa, Chen, Xu, Yang, Yang Michael, Syed, Ali Asgher, Ahmad, Ishaq, Leung, Tiklun, Wang, Yantao, Lin, Jing Yang, Ng, Alan Man Ching, Li, Yin, Ebadi, Firouzeh, Tress, Wolfgang, Richardson, Giles, Ge, Chuangye, Hu, Hanlin, Karimipour, Masoud, Baumann, Fanny, Tabah, Kenedy, Pereyra, Carlos, Raga, Sonia R., Xie, Haibing, Lira-Cantú, Mónica, Khenkin, Mark V., Visoly-Fisher, Iris, Katz, Eugene A., Vaynzof, Yana, Vidal, Rosario, Yu, Guicheng, Lin, Haoran, Weng, Shuchen, Wang, Shifeng, Djurišic, Aleksandra B., Collaborative Research Fund (Hong Kong), Ningbo Institute of Materials Technology and Engineering, Zhejiang Provincial Natural Science Foundation, Shenzhen Science and Technology Innovation Commission, Ministry of Education and Science (Kazakhstan), Nazarbayev University, European Commission, Ministero dello Sviluppo Economico, Agence Nationale de la Recherche (France), Ministry of Science and Higher Education of the Russian Federation, National University of Singapore, Department of Energy (US), National Key Research and Development Program (China), National Natural Science Foundation of China, Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), Generalitat de Catalunya, German Research Foundation, Generalitat Valenciana, Natural Science Foundation of Guangdong Province, Tibet Autonomous Region, Feng, Shien-Ping [0000-0002-3941-1363], Yip, Hin-Lap [0000-0002-5750-9751], Zhong, Yufei [0000-0001-9845-8607], Fong, Patrick W. K. [0000-0002-2460-4525], Li, Gang [0000-0001-8399-7771], Ng, Annie [0000-0002-5975-2499], Castriotta, Luigi Angelo [0000-0003-2525-8852], Matteocci, Fabio [0000-0001-7893-1356], Vesce, Luigi [0000-0003-3322-8688], Di Carlo, Aldo [0000-0001-6828-2380], Hou, Yi [0000-0002-1532-816X], Song, Zhaoning [0000-0002-6677-0994], Yan, Yanfa [0000-0003-3977-5789], Ng, Alan Man Ching [0000-0001-7081-8244], Richardson, Giles [0000-0001-6225-8590], Lira-Cantú, Mónica [0000-0002-3393-7436], Khenkin, Mark V. [0000-0001-9201-0238], Visoly-Fisher, Iris [0000-0001-6058-4712], Katz, Eugene A. [0000-0001-6151-1603], Vaynzof, Yana [0000-0002-0783-0707], Vidal, Rosario [0000-0001-7872-0620], Lin, Haoran [0000-0003-0625-8881], Wang, Shifeng [0000-0001-6169-2598], Djurišic, Aleksandra B. [0000-0002-5183-1467], Feng, Shien-Ping, Cheng, Yuanhang, Yip, Hin-Lap, Zhong, Yufei, Fong, Patrick W. K., Li, Gang, Ng, Annie, Chen, Cong, Castriotta, Luigi Angelo, Matteocci, Fabio, Vesce, Luigi, Saranin, Danila, Di Carlo, Aldo, Wang, Puqun, Wei Ho, Jian, Hou, Yi, Lin, Fen, Aberle, Armin G., Song, Zhaoning, Yan, Yanfa, Chen, Xu, Yang, Yang Michael, Syed, Ali Asgher, Ahmad, Ishaq, Leung, Tiklun, Wang, Yantao, Lin, Jing Yang, Ng, Alan Man Ching, Li, Yin, Ebadi, Firouzeh, Tress, Wolfgang, Richardson, Giles, Ge, Chuangye, Hu, Hanlin, Karimipour, Masoud, Baumann, Fanny, Tabah, Kenedy, Pereyra, Carlos, Raga, Sonia R., Xie, Haibing, Lira-Cantú, Mónica, Khenkin, Mark V., Visoly-Fisher, Iris, Katz, Eugene A., Vaynzof, Yana, Vidal, Rosario, Yu, Guicheng, Lin, Haoran, Weng, Shuchen, Wang, Shifeng, and Djurišic, Aleksandra B.

Abstract

Perovskite solar cells (PSCs) represent one of the most promising emerging photovoltaic technologies due to their high power conversion efficiency. However, despite the huge progress made not only in terms of the efficiency achieved, but also fundamental understanding of the relevant physics of the devices and issues which affect their efficiency and stability, there are still unresolved problems and obstacles on the path toward commercialization of this promising technology. In this roadmap, we aim to provide a concise and up to date summary of outstanding issues and challenges, and the progress made toward addressing these issues. While the format of this article is not meant to be a comprehensive review of the topic, it provides a collection of the viewpoints of the experts in the field, which covers a broad range of topics related to PSC commercialization, including those relevant for manufacturing (scaling up, different types of devices), operation and stability (various factors), and environmental issues (in particular the use of lead). We hope that the article will provide a useful resource for researchers in the field and that it will facilitate discussions and move forward toward addressing the outstanding challenges in this fast-developing field.

Published
2023

14. Stability of Molecular Devices: Halide Perovskite Solar Cells

Author

Reyna, Yegraf, Pérez-Tomás, Amador, Mingorance, Alba, Lira-Cantú, Mónica, He, Liang-Nian, Series editor, Rogers, Robin D., Series editor, Su, Dangsheng, Series editor, Tundo, Pietro, Series editor, Zhang, Z. Conrad, Series editor, Tian, Haining, editor, Boschloo, Gerrit, editor, and Hagfeldt, Anders, editor

Published
2018
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18. Supporting Information for Adv. Energy Mater., DOI: 10.1002/aenm.202203681 Synergetic Passivation of Metal-Halide Perovskite with Fluorinated Phenmethylammonium toward Efficient Solar Cells and Modules

Author

Zhu, Yanqing, Lv, Pin, Hu, Min, Raga, Sonia R., Yin, Huiyu, Zhang, Yuxi, An, Ziqi, Zhu, Qinglong, Luo, Gan, Li, Wangnan, Huang, Fuzhi, Lira-Cantú, Mónica, Cheng, Yi-Bing, Lu, Jianfeng, Zhu, Yanqing, Lv, Pin, Hu, Min, Raga, Sonia R., Yin, Huiyu, Zhang, Yuxi, An, Ziqi, Zhu, Qinglong, Luo, Gan, Li, Wangnan, Huang, Fuzhi, Lira-Cantú, Mónica, Cheng, Yi-Bing, and Lu, Jianfeng

Published
2023

19. Supporting Information: Hierarchical carbon nanofibers/carbon nanotubes/NiCo nanocomposites as novel highly effective counter electrode for dye-sensitized solar cells: a structure-electrocatalytic activity relationship study

Author

Fraczek-Szczypta, Aneta [afraczek@agh.edu.pl], Zambrzycki, Marcel, Piech, Robert, Raga, Sonia R., Lira-Cantú, Mónica, Fraczek-Szczypta, Aneta, Fraczek-Szczypta, Aneta [afraczek@agh.edu.pl], Zambrzycki, Marcel, Piech, Robert, Raga, Sonia R., Lira-Cantú, Mónica, and Fraczek-Szczypta, Aneta

Published
2023

20. Synergetic Passivation of Metal-Halide Perovskite with Fluorinated Phenmethylammonium toward Efficient Solar Cells and Modules

Author

National Key Research and Development Program (China), National Natural Science Foundation of China, Guangdong Science and Technology Department, Wuhan University of Science and Technology, Fundación la Caixa, Lu, Jianfeng [0000-0001-5586-4656], Zhu, Yanqing, Lv, Pin, Hu, Min, Raga, Sonia R., Yin, Huiyu, Zhang, Yuxi, An, Ziqi, Zhu, Qinglong, Luo, Gan, Li, Wangnan, Huang, Fuzhi, Lira-Cantú, Mónica, Cheng, Yi-Bing, Lu, Jianfeng, National Key Research and Development Program (China), National Natural Science Foundation of China, Guangdong Science and Technology Department, Wuhan University of Science and Technology, Fundación la Caixa, Lu, Jianfeng [0000-0001-5586-4656], Zhu, Yanqing, Lv, Pin, Hu, Min, Raga, Sonia R., Yin, Huiyu, Zhang, Yuxi, An, Ziqi, Zhu, Qinglong, Luo, Gan, Li, Wangnan, Huang, Fuzhi, Lira-Cantú, Mónica, Cheng, Yi-Bing, and Lu, Jianfeng

Abstract

Surface passivation with organic halide salts is a powerful strategy to enhance the performance of perovskite solar cells. However, the inevitable formed in-plane favored two-dimensional perovskite layers with low carrier mobility and high binding energy inhibit the interfacial charge transfer within the device. Herein, a bulky fluorinated phenmethylammonium salt is designed and synthesized to passivate the perovskite film without forming 2D perovskites. A strong interaction which is induced by an electron donation from passivation agent to perovskite not only reduces the defects at the top surface of the perovskite, but also suppresses the recombination reaction at the buried surface due to a permeation of the organic halide salt. Moreover, the results of time resolved photoluminescence and confocal microscopy images suggest that the interfacial charge transfer speed and uniformity are enhanced. As a result, the efficiency of a small-area device increases from 20.7 ± 0.9% to 22.8 ± 0.4% (aperture: 0.16 cm2). Moreover, a stabilized efficiency of 18.0% (aperture: 10.0 cm2) is achieved for larger-area modules with 6-series connected sub-cells. Equally important, the non-encapsulated modules show significantly improved stability at ambient conditions (ISOS-D-1). These significant improvements provided by a simple and reproducible procedure can be readily adopted in other types of devices.

Published
2023

21. Parameterization of the apparent chemical inductance of metal halide perovskite solar cells exhibiting constant-phase-element behavior

Author

Comunidad de Madrid, Universidad Rey Juan Carlos, European Commission, Ministerio de Economía y Competitividad (España), Ministerio de Ciencia e Innovación (España), Agencia Estatal de Investigación (España), Generalitat de Catalunya, Universidad Autónoma de Barcelona, Consejo Nacional de Ciencia y Tecnología (México), Hernández-Balaguera, Enrique [0000-0002-1400-5916], Hernández-Balaguera, Enrique, Arredondo, Belén, Pereyra, Carlos, Lira-Cantú, Mónica, Comunidad de Madrid, Universidad Rey Juan Carlos, European Commission, Ministerio de Economía y Competitividad (España), Ministerio de Ciencia e Innovación (España), Agencia Estatal de Investigación (España), Generalitat de Catalunya, Universidad Autónoma de Barcelona, Consejo Nacional de Ciencia y Tecnología (México), Hernández-Balaguera, Enrique [0000-0002-1400-5916], Hernández-Balaguera, Enrique, Arredondo, Belén, Pereyra, Carlos, and Lira-Cantú, Mónica

Abstract

A better characterization of the rich variety of anomalous ionic-electronic mechanisms in organic-inorganic metal halide perovskite solar cells is essential to obtain a stable and physically robust interpretation of the dynamic responses obtained. Therefore, new approaches towards light intensity-induced effects understanding are intensively searched for. Among all the mechanisms whose elucidation is locked and still under live debate, the apparent inductance phenomena stand out, which are visible not only in photovoltaic devices and optoelectronic elements, but also, for instance, in electrochemical and biological systems. Usually, the negative loops in impedance spectra are modeled through ideal elements (negative capacitance or inductance) although the results show systematic deviations (constant-phase-element behavior). In most scenarios, the influence of chemical inductance dispersion is somehow neglected, that is, ideal conditions are mimicked, omitting the practical device operation. Here we reformulate the theory that captures the slow (non-electromagnetic) inductive effects in the current-voltage curves of perovskite solar cells, deciphering the microscale behavior, consisting essentially of defects associated with deep trap states, from macroscale observations and experimental measurements. The audience is potentially huge, since many authors of multidisciplinary backgrounds are genuinely interested in adequately interpreting this behavior of general character.

Published
2023

22. Functionalized MXene/halide perovskite heterojunctions for perovskite solar cells Stable under real outdoor conditions

Author

Ministerio de Economía y Competitividad (España), Ministerio de Ciencia e Innovación (España), Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), Generalitat de Catalunya, European Commission, Swedish Energy Agency, Universidad Autónoma de Barcelona, Karimipour, Masoud, Paingott Parambil, Ashitha, Tabah, Kenedy, Zhang, Tiankai, Gao, Feng, Lira-Cantú, Mónica, Ministerio de Economía y Competitividad (España), Ministerio de Ciencia e Innovación (España), Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), Generalitat de Catalunya, European Commission, Swedish Energy Agency, Universidad Autónoma de Barcelona, Karimipour, Masoud, Paingott Parambil, Ashitha, Tabah, Kenedy, Zhang, Tiankai, Gao, Feng, and Lira-Cantú, Mónica

Abstract

Despite the performance improvement in perovskite solar cells (PSCs) when MXenes are employed as transport layers, device stability studies are still missing. Especially under real outdoor conditions where devices are subjected to the synergy of multiple stressors. In this work, functionalized 2D titanium carbide (Ti3C2) MXene is employed in normal PSC configuration, at the interface between the halide perovskite and the hole transport layer. The functionalization of the Ti3C2 MXene is made utilizing the same organic additive passivating the halide perovskite layer. The functionalizing strategy creates a continuous link between the MXene and the halide perovskite layer. Champion MXene-based PSCs revealed a ≈22% efficiency, in comparison with the control device showing 20.56%. Stability analyses under ISOS protocols under different conditions (dark, continuous light irradiation and real outdoor analysis) reveal that the enhancement of the PSCs lifespan is always observed when the MXene layer is employed. Analysis under continuous light irradaition (ISOS-L) reveal an almost 100% retention of the efficiency for the MXene-modified device, and outdoor testing (ISOS-O) carried out for > 600 h reveals a T80 of ≈600 h, while the control device degrades completely. To the best of the authors' knowledge, this is the first report of the stability assesment of MXene-based PSCs carried out under real outdoor (ISOS-O) conditions.

Published
2023

23. On performance of thin-film meso-structured perovskite solar cell through experimental analysis and device simulation

Author

Ministerio de Ciencia, Innovación y Universidades (España), Ministerio de Ciencia e Innovación (España), European Commission, Agencia Estatal de Investigación (España), Generalitat de Catalunya, Govern de les Illes Balears, Universidad de Las Islas Baleares, Universidad Autónoma de Barcelona, Ministerio de Economía y Competitividad (España), Bonnín-Ripoll, Francesc, Martynov, Y. B., Nazmitdinov, Rashid G., Tabah, Kenedy, Pereyra, Carlos, Lira-Cantú, Mónica, Cardona, Gabriel, Pujol Nadal, Ramon, Ministerio de Ciencia, Innovación y Universidades (España), Ministerio de Ciencia e Innovación (España), European Commission, Agencia Estatal de Investigación (España), Generalitat de Catalunya, Govern de les Illes Balears, Universidad de Las Islas Baleares, Universidad Autónoma de Barcelona, Ministerio de Economía y Competitividad (España), Bonnín-Ripoll, Francesc, Martynov, Y. B., Nazmitdinov, Rashid G., Tabah, Kenedy, Pereyra, Carlos, Lira-Cantú, Mónica, Cardona, Gabriel, and Pujol Nadal, Ramon

Abstract

In the last few years, there has been an unprecedented progress in the increase of the power conversion efficiency of perovskite solar cells. Evidently, further advances in the efficiency of these devices will depend on the constraints imposed by the optical and electronic properties of their constituents. Quite apparently during the manufacturing process of a solar cell, there is an inevitable variation in the thicknesses of various functional layers, which affects the optoelectronic characteristics of the final sample. In this work, a possible strategy of the analysis of the solar cell performance is suggested, based on statistically averaging procedure of experimental data. We present a case study, in which the optoelectronic properties of the meso-structured perovskite solar cell (with a mesoporous TiO2 layer) are analyzed within the method providing a deeper understanding of the device operation. This method enables an assessment of the overall quality of the device, pointing pathways towards the maximum efficiency design of a perovskite solar cell by material properties tuning.

Published
2023

24. Supplementary Information for “On performance of thin-film meso-structured perovskite solar cell through experimental analysis and device simulation'

Author

Bonnín-Ripoll, Francesc, Martynov, Y. B., Nazmitdinov, Rashid G., Tabah, Kenedy, Pereyra, Carlos, Lira-Cantú, Mónica, Cardona, Gabriel, Pujol Nadal, Ramon, Bonnín-Ripoll, Francesc, Martynov, Y. B., Nazmitdinov, Rashid G., Tabah, Kenedy, Pereyra, Carlos, Lira-Cantú, Mónica, Cardona, Gabriel, and Pujol Nadal, Ramon

Published
2023

28. Contributors

Author

Agresti, Antonio, primary, Aldakov, Dmitry, additional, Aumaitre, Cyril, additional, Bian, Zuqiang, additional, Bretos, Iñigo, additional, Brunetti, Francesca, additional, Carminati, Saulo A., additional, Ciceroni, Claudio, additional, Colodrero, Silvia, additional, Costa, Saionara V., additional, Demadrille, Renaud, additional, Di Carlo, Aldo, additional, Dimopoulos, Theodoros, additional, Hagfeldt, Anders, additional, Huang, Chunhui, additional, Jiménez, Ricardo, additional, Joly, Damien, additional, Konios, Dimitrios, additional, Kymakis, Emmanuel, additional, Lee, Jin-Wook, additional, Lira-Cantú, Mónica, additional, Liu, Zhiwei, additional, Liu, Quan, additional, Calzada, M. Lourdes, additional, Mantilla-Perez, Paola, additional, Marchezi, Paulo E., additional, Martorell, Jordi, additional, Meng, Lei, additional, Mingorance, Alba, additional, Morais, Andreia, additional, Nogueira, Ana F., additional, Pauporté, Thierry, additional, Pérez-Tomás, Amador, additional, Ricote, Jesús, additional, Riedl, Thomas, additional, Romero-Gomez, Pablo, additional, Szostak, Rodrigo, additional, Tanenbaum, David, additional, Vlachopoulos, Nikolaos, additional, Yang, Yang, additional, and Ye, Senyun, additional

Published
2018
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32. Photoelectrocatalytic water splitting on carbon dot/titania electrodes with methanol oxidation

Author

Ansón Casaos, Alejandro, Hernández Ferrer, Mariano, Lira-Cantú, Mónica, Benito, Ana M., Maser, Wolfgang K., Ministerio de Ciencia e Innovación (España), Agencia Estatal de Investigación (España), and Gobierno de Aragón

Subjects
Photocatalytic Water Splitting, Titania, Photoelectrochemistry, Methanol, Hydrogen production, Carbon dots
Abstract

1 figure, 2 tables.-- Abstract of the poster presented at the 9th International Symposium on Carbon for Catalysis, IX CarboCat, 28th-30th June, Zaragoza, Spain., Short-chain alcohols such as methanol (MeOH) work well as hole scavengers in the photocatalytic water splitting on TiO2. Besides, MeOH is widely studied as a model pollutant in water. Both ideas are often combined to achieve efficient water purification processes with the simultaneous production of hydrogen. In this communication, we present a photoelectrochemical study on carbon dot (CD)/TiO2 electrodes., Financial support from Spanish MICINN/AEI under project PID2019-104272RB-C51/AEI/ 10.13039/501100011033 and the Diputación General de Aragón under project T03_20R (Grupo Reconocido) is acknowledged.

Published
2022

33. Supporting Information Improved performance and stability of perovskite solar modules by interface modulating with Graphene Oxide crosslinked CsPbBr3 Quantum Dots

Author

Zhang, Shujing, Guo, Rui, Zeng, Haipeng, Zhao, Yang, Liu, Xinyue, You, Shuai, Li, Min, Luo, Long, Lira-Cantú, Mónica, Li, Lin, Liu, Fengxiang, Zheng, Xin, Liao, Goanglan, Li, Xiong, Zhang, Shujing, Guo, Rui, Zeng, Haipeng, Zhao, Yang, Liu, Xinyue, You, Shuai, Li, Min, Luo, Long, Lira-Cantú, Mónica, Li, Lin, Liu, Fengxiang, Zheng, Xin, Liao, Goanglan, and Li, Xiong

Published
2022

34. Supporting Information Universal control strategy for anomalous ionic-electronic phenomenology in perovskite solar cells efficiency measurements

Author

Hernández-Balaguera, Enrique [enrique.hernandez@urjc.es], Hernández-Balaguera, Enrique, Muñoz-Díaz, Laura, Pereyra, Carlos, Lira-Cantú, Mónica, Najafi, Mehrdad, Galagan, Yulia, Hernández-Balaguera, Enrique [enrique.hernandez@urjc.es], Hernández-Balaguera, Enrique, Muñoz-Díaz, Laura, Pereyra, Carlos, Lira-Cantú, Mónica, Najafi, Mehrdad, and Galagan, Yulia

Published
2022

35. Supporting Information for Adv. Funct. Mater., DOI: 10.1002/adfm.202204396 Ionic Liquid Stabilized Perovskite Solar Modules with Power Conversion Efficiency Exceeding 20%

Author

Hu, Min [hm@wtu.edu.cn], Li, Neng [lineng@whut.edu.cn], Wang, Yulong, Yang, Yufei, Li, Neng, Hu, Min, Raga, Sonia R., Jiang, Yang, Wang, Chao, Zhang, Xiao-Li, Lira-Cantú, Mónica, Huang, Fuzhi, Cheng, Yi-Bing, Lu, Jianfeng, Hu, Min [hm@wtu.edu.cn], Li, Neng [lineng@whut.edu.cn], Wang, Yulong, Yang, Yufei, Li, Neng, Hu, Min, Raga, Sonia R., Jiang, Yang, Wang, Chao, Zhang, Xiao-Li, Lira-Cantú, Mónica, Huang, Fuzhi, Cheng, Yi-Bing, and Lu, Jianfeng

Published
2022

36. Solution Processable Direct Bandgap Copper-Silver-Bismuth Iodide Photovoltaics: Compositional Control of Dimensionality and Optoelectronic Properties

Author

Australian Centre for Advanced Photovoltaics, Australian Renewable Energy Agency, Australian Research Council, La Caixa, Pai, Narendra, Chatti, Manjunath, Fürer, Sebastian O., Scully, Andrew D., Raga, Sonia R., Rai, Nitish, Tan, Boer, Chesman, Anthony S. R., Xu, Zhou, Rietwyk, Kevin James, Reddy, Saripally Sudhaker, Hora, Yvonne, Sepalage, Gaveshana A., Glück, Nadja, Lira-Cantú, Mónica, Bach, Udo, Simonov, Alexandr N., Australian Centre for Advanced Photovoltaics, Australian Renewable Energy Agency, Australian Research Council, La Caixa, Pai, Narendra, Chatti, Manjunath, Fürer, Sebastian O., Scully, Andrew D., Raga, Sonia R., Rai, Nitish, Tan, Boer, Chesman, Anthony S. R., Xu, Zhou, Rietwyk, Kevin James, Reddy, Saripally Sudhaker, Hora, Yvonne, Sepalage, Gaveshana A., Glück, Nadja, Lira-Cantú, Mónica, Bach, Udo, and Simonov, Alexandr N.

Abstract

The search for lead-free alternatives to lead-halide perovskite photovoltaic materials resulted in the discovery of copper(I)-silver(I)-bismuth(III) halides exhibiting promising properties for optoelectronic applications. The present work demonstrates a solution-based synthesis of uniform CuAgBiI thin films and scrutinizes the effects of x on the phase composition, dimensionality, optoelectronic properties, and photovoltaic performance. Formation of pure 3D CuAgBiI at x = 1, 2D CuAgBiI at x = 2, and a mix of the two at 1 < x < 2 is demonstrated. Despite lower structural dimensionality, CuAgBiI has broader optical absorption with a direct bandgap of 1.89 ± 0.05 eV, a valence band level at -5.25 eV, improved carrier lifetime, and higher recombination resistance as compared to CuAgBiI. These differences are mirrored in the power conversion efficiencies of the CuAgBiI and CuAgBiI solar cells under 1 sun of 1.01 ± 0.06% and 2.39 ± 0.05%, respectively. The latter value is the highest reported for this class of materials owing to the favorable film morphology provided by the hot-casting method. Future performance improvements might emerge from the optimization of the CuAgBiI layer thickness to match the carrier diffusion length of ≈40–50 nm. Nonencapsulated CuAgBiI solar cells display storage stability over 240 days.

Published
2022

37. Ionic liquid stabilized perovskite solar modules with power conversion efficiency exceeding 20%

Author

National Natural Science Foundation of China, Hubei Provincial Natural Science Foundation, Guangdong Science and Technology Department, Fundamental Research Funds for the Central Universities (China), National Key Research and Development Program (China), Wuhan University of Science and Technology, Fundación la Caixa, Wang, Yulong, Yang, Yufei, Li, Neng, Hu, Min, Raga, Sonia R., Jiang, Yang, Wang, Chao, Zhang, Xiao-Li, Lira-Cantú, Mónica, Huang, Fuzhi, Cheng, Yi-Bing, Lu, Jianfeng, National Natural Science Foundation of China, Hubei Provincial Natural Science Foundation, Guangdong Science and Technology Department, Fundamental Research Funds for the Central Universities (China), National Key Research and Development Program (China), Wuhan University of Science and Technology, Fundación la Caixa, Wang, Yulong, Yang, Yufei, Li, Neng, Hu, Min, Raga, Sonia R., Jiang, Yang, Wang, Chao, Zhang, Xiao-Li, Lira-Cantú, Mónica, Huang, Fuzhi, Cheng, Yi-Bing, and Lu, Jianfeng

Abstract

Metal-halide perovskite solar cells (PSCs) exhibit outstanding power conversion efficiencies (PCEs) when fabricated as mm-sized devices, but creation of high-performing large-area modules that are stable on a sufficiently long timescale still presents a significant challenge. Herein, the quality of large-area perovskite film is improved by using ionic liquid additives via forming a new Pb-N bonding between the ionic liquid and Pb2+. This new bond can be modulated by a critical screening of the anion structure of the ionic liquid. The selected ionic liquid effectively reduces the defects of the perovskite films and markedly elongate their carrier lifetimes. As a result, a champion PCE of 24.4% for small-area (0.148 cm2) devices and 20.4% for larger-area (10.0 cm2) modules under AM 1.5G irradiation is achieved. More importantly, the modified devices retain 90% of their peak PCE after aging for 1900 h at 65 ± 5 °C (ISOS-T-1) and 80% after continuous light soaking for 750 h. The non-encapsulated modules maintained 80% of their peak PCE after 1100 h of aging in the air with a relative humidity of 35 ± 5% and temperature of 25 ± 5 °C under dark (ISOS-D-1), showing great potential for future commercialization.

Published
2022

39. Universal control strategy for anomalous ionic-electronic phenomenology in perovskite solar cells efficiency measurements

Author

Comunidad de Madrid, Universidad Rey Juan Carlos, Ministerio de Economía y Competitividad (España), Generalitat de Catalunya, Ministry of Science and Technology (Taiwan), Hernández-Balaguera, Enrique, Muñoz-Díaz, Laura, Pereyra, Carlos, Lira-Cantú, Mónica, Najafi, Mehrdad, Galagan, Yulia, Comunidad de Madrid, Universidad Rey Juan Carlos, Ministerio de Economía y Competitividad (España), Generalitat de Catalunya, Ministry of Science and Technology (Taiwan), Hernández-Balaguera, Enrique, Muñoz-Díaz, Laura, Pereyra, Carlos, Lira-Cantú, Mónica, Najafi, Mehrdad, and Galagan, Yulia

Abstract

The unprecedented increase of photovoltaic perovskites performance metrics has been obscured by the puzzling phenomenology underlying the device's anomalous ionic/electronic landscape. Thus, the establishment of a reliable measurement protocol of efficiency measurements, unanimously adopted by the perovskite's community, is indeed necessary to ensure comparability of device performance between different research laboratories. Here, we report a control strategy of ionic-electronic cooperative relaxation phenomena, eliminating the “hysteria around hysteresis”. The procedure, based on mixed engineering strategies, solves the problem that arises from the difficulty of providing steady-state device operation conditions, capturing in turn the anomalous capacitive behavior. From the determination of an optimal scan rate for J–V modeling, we provide an experimental visualization of the interplay between perovskites' ionic and electronic responses. The results of this combined theoretical and experimental study identify key guidelines about assessment procedural of device performance that should be taken into account in future publications to further improve reproducibility in the research field.

Published
2022

40. Photoelectrocatalytic water splitting on carbon dot/titania electrodes with methanol oxidation

Author

Ministerio de Ciencia e Innovación (España), Agencia Estatal de Investigación (España), Gobierno de Aragón, Ansón Casaos, Alejandro, Hernández Ferrer, Mariano, Lira-Cantú, Mónica, Benito, Ana M., Maser, Wolfgang K., Ministerio de Ciencia e Innovación (España), Agencia Estatal de Investigación (España), Gobierno de Aragón, Ansón Casaos, Alejandro, Hernández Ferrer, Mariano, Lira-Cantú, Mónica, Benito, Ana M., and Maser, Wolfgang K.

Abstract

Short-chain alcohols such as methanol (MeOH) work well as hole scavengers in the photocatalytic water splitting on TiO2. Besides, MeOH is widely studied as a model pollutant in water. Both ideas are often combined to achieve efficient water purification processes with the simultaneous production of hydrogen. In this communication, we present a photoelectrochemical study on carbon dot (CD)/TiO2 electrodes.

Published
2022

41. Improved performance and stability of perovskite solar modules by interface modulating with graphene oxide crosslinked CsPbBr3quantum dots

Author

National Natural Science Foundation of China, Zhang, Shujing, Guo, Rui, Zeng, Haipeng, Zhao, Yang, Liu, Xinyue, You, Shuai, Li, Min, Luo, Long, Lira-Cantú, Mónica, Li, Lin, Liu, Fengxiang, Zheng, Xin, Liao, Goanglan, Li, Xiong, National Natural Science Foundation of China, Zhang, Shujing, Guo, Rui, Zeng, Haipeng, Zhao, Yang, Liu, Xinyue, You, Shuai, Li, Min, Luo, Long, Lira-Cantú, Mónica, Li, Lin, Liu, Fengxiang, Zheng, Xin, Liao, Goanglan, and Li, Xiong

Abstract

Perovskite solar cells (PSCs) are one of the most prominent photovoltaic technologies. However, PSCs still encounter great challenges of scaling up from laboratorial cells to industrial modules without serious performance loss while maintaining excellent long-term stability, owing to the resistive losses and extra instability factors that scale quadratically with the device area. Here, we manifest a concept of multifunctional interface modulation for highly efficient and stable perovskite solar modules (PSMs). The advisably designed multifunctional interface modulator GO/QD crosslinks the CsPbBr3 perovskite quantum dots (QDs) on the conductive graphene oxide (GO) surfaces, which significantly improve charge transport and energy band alignment at the perovskite/hole transporting layer interface to reduce the charge transport resistance while passivating the surface defects of the perovskite to inhibit carrier recombination resistive losses. Moreover, the GO/QD interlayer acts as a robust permeation barrier that modulates the undesirable interfacial ion and moisture diffusion. Consequently, we adopt a scalable vacuum flash-assisted solution processing (VASP) method to achieve a certified stabilized power output efficiency of 17.85% (lab-measured champion efficiency of 18.55%) for the mini-modules. The encapsulated PSMs achieve over 90% of their initial efficiency after continuous operation under 1 sun illumination and the damp heat test at 85 °C, respectively. This journal is

Published
2022

42. Functionalized carbon dots on TiO2 for perovskite photovoltaics and stable photoanodes for water splitting

Author

Ministerio de Economía, Industria y Competitividad (España), European Commission, Gobierno de Aragón, Ansón Casaos, Alejandro [0000-0002-3134-8566], Hernández-Ferrer, Javier [0000-0002-6586-6935], Vallan, Lorenzo [0000-0001-5267-4849], Xie, Haibing [0000-0002-5070-2882], Lira-Cantú, Mónica [0000-0002-3393-7436], Benito, Ana M. [0000-0002-8654-7386], Maser, Wolfgang K. [0000-0003-4253-0758], Ansón Casaos, Alejandro, Hernández-Ferrer, Javier, Vallan, Lorenzo, Xie, Haibing, Lira-Cantú, Mónica, Benito, Ana M., Maser, Wolfgang K., Ministerio de Economía, Industria y Competitividad (España), European Commission, Gobierno de Aragón, Ansón Casaos, Alejandro [0000-0002-3134-8566], Hernández-Ferrer, Javier [0000-0002-6586-6935], Vallan, Lorenzo [0000-0001-5267-4849], Xie, Haibing [0000-0002-5070-2882], Lira-Cantú, Mónica [0000-0002-3393-7436], Benito, Ana M. [0000-0002-8654-7386], Maser, Wolfgang K. [0000-0003-4253-0758], Ansón Casaos, Alejandro, Hernández-Ferrer, Javier, Vallan, Lorenzo, Xie, Haibing, Lira-Cantú, Mónica, Benito, Ana M., and Maser, Wolfgang K.

Abstract

Various types of fluorescent carbon nanoparticles, often called carbon dots (CDs), are synthesized by different polycondensation methods: microwave irradiation, hydrothermal conditions or solution chemistry at ambient temperature with subsequent chemical functionalization. The CDs are deposited on TiO2 films to be probed as electron transport layers in perovskite photovoltaics and the anode for photoelectrochemical water splitting. Nitrogen CDs, which do not contain oxygen, lead to an increase of around 50 mV in the open circuit voltage of perovskite solar cells. All the CD types produce an improved photocurrent in water splitting, particularly CDs that are functionalized with thiol groups and butyl chains. It is demonstrated that the modified electrode is stable under continuous operation. Other electrochemical characteristics of the electrode, such as the voltammogram shape, onset potentials and open circuit potentials, remain nearly unchanged upon the deposition of CDs. Only the incident photon to current conversion efficiency improves clearly, extending the absorption range by around 20 nm towards longer wavelengths. This study provides new data about mechanisms and electrode arrangements for improving the performance of n-type semiconductors in photovoltaic cells and photoelectrochemical hydrogen production.

Published
2020

43. PbZrTiO3 ferroelectric oxide as an electron extraction material for stable halide perovskite solar cells

Author

European Commission, King Abdulaziz City for Science and Technology, Ministerio de Ciencia, Innovación y Universidades (España), Ministerio de Economía y Competitividad (España), Pérez-Tomás, Amador [0000-0002-0551-3142], Kim, Hui-Seon [0000-0002-9928-3033], Turren-Cruz, Silver-Hamill [0000-0003-3191-6188], Tanenbaum, David M. [0000-0002-6070-8882], Saliba, Michael [0000-0002-6818-9781], Zakeeruddin, Shaik Mohammed [0000-0003-0655-4744], Hagfeldt, Anders [0000-0001-6725-8856], Lira-Cantú, Mónica [0000-0002-3393-7436], Pérez-Tomás, Amador, Xie, Haibing, Wang, Zaiwei, Kim, Hui-Seon, Shirley, Ian, Turren-Cruz, Silver-Hamill, Morales-Melgares, Anna, Saliba, Benedicte, Tanenbaum, David M., Saliba, Michael, Zakeeruddin, Shaik Mohammed, Grätzel, Michael, Lira-Cantú, Mónica, European Commission, King Abdulaziz City for Science and Technology, Ministerio de Ciencia, Innovación y Universidades (España), Ministerio de Economía y Competitividad (España), Pérez-Tomás, Amador [0000-0002-0551-3142], Kim, Hui-Seon [0000-0002-9928-3033], Turren-Cruz, Silver-Hamill [0000-0003-3191-6188], Tanenbaum, David M. [0000-0002-6070-8882], Saliba, Michael [0000-0002-6818-9781], Zakeeruddin, Shaik Mohammed [0000-0003-0655-4744], Hagfeldt, Anders [0000-0001-6725-8856], Lira-Cantú, Mónica [0000-0002-3393-7436], Pérez-Tomás, Amador, Xie, Haibing, Wang, Zaiwei, Kim, Hui-Seon, Shirley, Ian, Turren-Cruz, Silver-Hamill, Morales-Melgares, Anna, Saliba, Benedicte, Tanenbaum, David M., Saliba, Michael, Zakeeruddin, Shaik Mohammed, Grätzel, Michael, and Lira-Cantú, Mónica

Abstract

State-of-the-art halide perovskite solar cells employ semiconductor oxides as electron transport materials. Defects in these oxides, such as oxygen vacancies (Ovac), act as recombination centres and, in air and UV light, reduce the stability of the solar cell. Under the same conditions, the PbZrTiO3 ferroelectric oxide employs Ovac for the creation of defect-dipoles responsible for photo-carrier separation and current transport, evading device degradation. We report the application of PbZrTiO3 as the electron extraction material in triple cation halide perovskite solar cells. The application of a bias voltage (poling) up to 2 V, under UV light, is a critical step to induce charge transport in the ferroelectric oxide. Champion cells result in power conversion efficiencies of ∼11% after poling. Stability analysis, carried out at 1-sun AM 1.5 G, including UV light in air for unencapsulated devices, shows negligible degradation for hours. Our experiments indicate the effect of ferroelectricity, however alternative conducting mechanisms affected by the accumulation of charges or the migration of ions (or the combination of them) cannot be ruled out. Our results demonstrate, for the first time, the application of a ferroelectric oxide as an electron extraction material in efficient and stable PSCs. These findings are also a step forward in the development of next generation ferroelectric oxide-based electronic and optoelectronic devices.

Published
2019

44. Next generation photovoltaics: Perovskite solar cells

Author

Lira-Cantú, Mónica

Abstract

Trabajo presentado al Congreso NANO (Nanotecnología y Ciencias), celebrado de forma virtual en Monterrey, Nuevo León (México) del 13 al 15 de Mayo 2021.

Published
2021

45. Renewable Energy Production

Author

Míguez, Hernán, Campoy Quiles, Mariano, Pérez-Maqueda, Luis A., González-Elipe, Agustín R., Granados, Xavier, Vilarrasa, Víctor, Obradors, Xavier, Puig Molina, Teresa, Ripalda, José María, Coll, Mariona, Fontcuberta, Josep, Goñi, Alejandro, Lira-Cantú, Mónica, Bernechea, María, Atienzar, Pedro, Calvo, Mauricio E., Vilarrasa, Víctor [0000-0003-1169-4469], and Vilarrasa, Víctor

Abstract

Coordinator: Hernán Míguez.

Published
2021

46. Renewable Energy Production

Author

Vilarrasa, Víctor [0000-0003-1169-4469], Míguez, Hernán, Campoy Quiles, Mariano, Pérez-Maqueda, Luis A., González-Elipe, Agustín R., Granados, Xavier, Vilarrasa, Víctor, Obradors, Xavier, Puig Molina, Teresa, Ripalda, José María, Coll, Mariona, Fontcuberta, Josep, Goñi, Alejandro R., Lira-Cantú, Mónica, Bernechea, María, Atienzar, Pedro, Calvo, Mauricio E., Vilarrasa, Víctor [0000-0003-1169-4469], Míguez, Hernán, Campoy Quiles, Mariano, Pérez-Maqueda, Luis A., González-Elipe, Agustín R., Granados, Xavier, Vilarrasa, Víctor, Obradors, Xavier, Puig Molina, Teresa, Ripalda, José María, Coll, Mariona, Fontcuberta, Josep, Goñi, Alejandro R., Lira-Cantú, Mónica, Bernechea, María, Atienzar, Pedro, and Calvo, Mauricio E.

Published
2021

47. Decoupling the effects of defects on efficiency and stability through phosphonates in stable halide perovskite solar cells

Author

Ministerio de Economía y Competitividad (España), King Abdulaziz City for Science and Technology, European Commission, Swiss National Science Foundation, Agencia Estatal de Investigación (España), Ministerio de Ciencia, Innovación y Universidades (España), Generalitat de Catalunya, Xie, Haibing, Wang, Zaiwei, Chen, Zehua, Pereyra, Carlos, Pols, Mike, Gałkowski, Krzysztof, Anaya, Miguel, Fu, Shuai, Jia, Xiaoyu, Tang, Peng-Yi, Kubicki, Dominik Józef, Agarwalla, Anand, Kim, Hui-Seon, Prochowicz, Daniel, Borrisé, Xavier, Bonn, Mischa, Bao, Chunxiong, Sun, Xiaoxiao, Zakeeruddin, Shaik Mohammed, Emsley, Lyndon, Arbiol, Jordi, Gao, Feng, Fu, Fan, Wang, Hai I., Tielrooij, Klaas-Jan, Stranks, Samuel D., Tao, Shuxia, Grätzel, Michael, Hagfeldt, Anders, Lira-Cantú, Mónica, Ministerio de Economía y Competitividad (España), King Abdulaziz City for Science and Technology, European Commission, Swiss National Science Foundation, Agencia Estatal de Investigación (España), Ministerio de Ciencia, Innovación y Universidades (España), Generalitat de Catalunya, Xie, Haibing, Wang, Zaiwei, Chen, Zehua, Pereyra, Carlos, Pols, Mike, Gałkowski, Krzysztof, Anaya, Miguel, Fu, Shuai, Jia, Xiaoyu, Tang, Peng-Yi, Kubicki, Dominik Józef, Agarwalla, Anand, Kim, Hui-Seon, Prochowicz, Daniel, Borrisé, Xavier, Bonn, Mischa, Bao, Chunxiong, Sun, Xiaoxiao, Zakeeruddin, Shaik Mohammed, Emsley, Lyndon, Arbiol, Jordi, Gao, Feng, Fu, Fan, Wang, Hai I., Tielrooij, Klaas-Jan, Stranks, Samuel D., Tao, Shuxia, Grätzel, Michael, Hagfeldt, Anders, and Lira-Cantú, Mónica

Abstract

Understanding defects is of paramount importance for the development of stable halide perovskite solar cells (PSCs). However, isolating their distinctive effects on device efficiency and stability is currently a challenge. We report that adding the organic molecule 3-phosphonopropionic acid (H3pp) to the halide perovskite results in unchanged overall optoelectronic performance while having a tremendous effect on device stability. We obtained PSCs with ∼21% efficiency that retain ∼100% of the initial efficiency after 1,000 h at the maximum power point under simulated AM1.5G illumination. The strong interaction between the perovskite and the H3pp molecule through two types of hydrogen bonds (HI and OH) leads to shallow point defect passivation that has a significant effect on device stability but not on the non-radiative recombination and device efficiency. We expect that our work will have important implications for the current understanding and advancement of operational PSCs.

Published
2021

48. Additive engineering for stable halide perovskite solar cells

Author

Ministerio de Economía y Competitividad (España), Generalitat de Catalunya, Universidad Autónoma de Barcelona, Pereyra, Carlos, Xie, Haibing, Lira-Cantú, Mónica, Ministerio de Economía y Competitividad (España), Generalitat de Catalunya, Universidad Autónoma de Barcelona, Pereyra, Carlos, Xie, Haibing, and Lira-Cantú, Mónica

Abstract

Halide perovskite solar cells (PSCs) have already demonstrated power conversion efficiencies above 25%, which makes them one of the most attractive photovoltaic technologies. However, one of the main bottlenecks towards their commercialization is their long-term stability, which should exceed the 20-year mark. Additive engineering is an effective pathway for the enhancement of device lifetime. Additives applied as organic or inorganic compounds, improve crystal grain growth enhancing power conversion efficiency. The interaction of their functional groups with the halide perovskite (HP) absorber, as well as with the transport layers, results in defect passivation and ion immobilization improving device performance and stability. In this review, we briefly summarize the different types of additives recently applied in PSC to enhance not only efficiency but also long-term stability. We discuss the different mechanism behind additive engineering and the role of the functional groups of these additives for defect passivation. Special emphasis is given to their effect on the stability of PSCs under environmental conditions such as humidity, atmosphere, light irradiation (UV, visible) or heat, taking into account the recently reported ISOS protocols. We also discuss the relation between deep-defect passivation, non-radiative recombination and device efficiency, as well as the possible relation between shallow-defect passivation, ion immobilization and device operational stability. Finally, insights into the challenge and criteria for additive selection are provided for the further stability enhancement of PSCs.

Published
2021

49. Unraveling the key relationship between perovskite capacitive memory, long timescale cooperative relaxation phenomena, and anomalous J–V hysteresis

Author

Comunidad de Madrid, Ministerio de Economía, Industria y Competitividad (España), European Commission, Ministerio de Ciencia e Innovación (España), Generalitat de Catalunya, Ministerio de Economía y Competitividad (España), Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), Universidad Autónoma de Barcelona, Hernández-Balaguera, Enrique, Pozo, Gonzalo del, Arredondo, Belén, Romero, Beatriz, Pereyra, Carlos, Xie, Haibing, Lira-Cantú, Mónica, Comunidad de Madrid, Ministerio de Economía, Industria y Competitividad (España), European Commission, Ministerio de Ciencia e Innovación (España), Generalitat de Catalunya, Ministerio de Economía y Competitividad (España), Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), Universidad Autónoma de Barcelona, Hernández-Balaguera, Enrique, Pozo, Gonzalo del, Arredondo, Belén, Romero, Beatriz, Pereyra, Carlos, Xie, Haibing, and Lira-Cantú, Mónica

Abstract

Capacitive response at long time scales seems to remain an elusive feature in the analysis of the electrical properties of perovskite-based solar cells. It belongs to one of the critical anomalous effects that arises from the characteristic phenomenology of this type of emerging photovoltaic devices. Thereby, accurately deducing key capacitance feature of new light harvesting perovskites from electrical measurements represents a significant challenge regarding the interpretation of physical processes and the control of undesired mechanisms, such as slow dynamic effects and/or current density–voltage (J–V) hysteresis. Herein, it is shown that long timescale mechanisms that give rise to hysteresis in stable and high-efficiency quadruple-cation perovskites are not due to a classical capacitive behavior in the sense of ideal charge accumulation processes. Instead, it is a phenomenological consequence of slow memory-based capacitive currents and the underlying cooperative relaxations. A fractional dynamics approach, based on the idea of capacitance distribution in perovskite devices, reliably models the slow transient phenomena and the consequent scan-rate- and bias-dependent hysteresis. Observable for a wide variety of photovoltaic halide perovskites, distributed capacitive effects are rather universal anomalous phenomena, which can be related to the long-time electrical response and hysteresis.

Published
2021

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