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1. Correlation of Nanostructural Features with Phase Transition in Thermochromic VO2 Thin Films for Smart Windows Applications

Author

Rai, Ayushi, Istrate, Cosmin, Socol, Gabriel, Iacob, Nicusor, Hansen, Vidar, Mihailescu, Cristian N., Kuncser, Victor, Delimitis, Andreas, Correia, José A. F. O., Series Editor, De Jesus, Abílio M. P., Series Editor, Ayatollahi, Majid Reza, Advisory Editor, Berto, Filippo, Advisory Editor, Fernández-Canteli, Alfonso, Advisory Editor, Hebdon, Matthew, Advisory Editor, Kotousov, Andrei, Advisory Editor, Lesiuk, Grzegorz, Advisory Editor, Murakami, Yukitaka, Advisory Editor, Carvalho, Hermes, Advisory Editor, Zhu, Shun-Peng, Advisory Editor, Bordas, Stéphane, Advisory Editor, Fantuzzi, Nicholas, Advisory Editor, Susmel, Luca, Advisory Editor, Dutta, Subhrajit, Advisory Editor, Maruschak, Pavlo, Advisory Editor, Fedorova, Elena, Advisory Editor, Pavlou, Dimitrios, editor, Correia, Jose A.F.O., editor, Fazeres-Ferradosa, Tiago, editor, Gudmestad, Ove Tobias, editor, Siriwardane, Sudath C., editor, Lemu, Hirpa, editor, Ersdal, Gerhard, editor, Liyanage, Jayantha P., editor, Hansen, Vidar, editor, Minde, Mona Wetrhus, editor, Ratnayake, Chandima, editor, Delimitis, Andreas, editor, El-Thalji, Idriss, editor, Adasooriya, Nirosha, editor, Samarakoon, Samindi, editor, and Hemmingsen, Tor, editor

Published
2024
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2. Optimization of Thermochromic Coatings for Smart Window Applications

Author

Kuncser, Victor, Mihailescu, Cristian N., Rai, Ayushi, Kuncser, Andrei, Locovei, Claudiu, Iacob, Nicusor, Schinteie, Gabriel, Dorcioman, Gabriela, Socol, Gabriel, Delimitis, Andreas, Correia, José A. F. O., Series Editor, De Jesus, Abílio M. P., Series Editor, Ayatollahi, Majid Reza, Advisory Editor, Berto, Filippo, Advisory Editor, Fernández-Canteli, Alfonso, Advisory Editor, Hebdon, Matthew, Advisory Editor, Kotousov, Andrei, Advisory Editor, Lesiuk, Grzegorz, Advisory Editor, Murakami, Yukitaka, Advisory Editor, Carvalho, Hermes, Advisory Editor, Zhu, Shun-Peng, Advisory Editor, Bordas, Stéphane, Advisory Editor, Fantuzzi, Nicholas, Advisory Editor, Susmel, Luca, Advisory Editor, Dutta, Subhrajit, Advisory Editor, Maruschak, Pavlo, Advisory Editor, Fedorova, Elena, Advisory Editor, Pavlou, Dimitrios, editor, Correia, Jose A.F.O., editor, Fazeres-Ferradosa, Tiago, editor, Gudmestad, Ove Tobias, editor, Siriwardane, Sudath C., editor, Lemu, Hirpa, editor, Ersdal, Gerhard, editor, Liyanage, Jayantha P., editor, Hansen, Vidar, editor, Minde, Mona Wetrhus, editor, Ratnayake, Chandima, editor, Delimitis, Andreas, editor, El-Thalji, Idriss, editor, Adasooriya, Nirosha, editor, Samarakoon, Samindi, editor, and Hemmingsen, Tor, editor

Published
2024
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3. TiO2 nanotubes film/FTO glass interface: Thermal treatment effects

Author

Vujančević Jelena, Bjelajac Anđelika, Veltruska Katerina, Matolin Vladimir, Siketić Zdravko, Provatas Georgios, Jakšić Milko, Stan George E., Socol Gabriel, Mihailescu Ion N., Pavlović Vladimir B., and Janaćković Đorđe

Subjects
sn diffusion, sn-tio2 doping, sintering, tof-erda, xps, Chemical technology, TP1-1185
Abstract

Pure Ti films deposited by radio-frequency magnetron sputtering on FTO glass were anodized to fabricate TiO2 nanotubes (NTs) arrays. The TiO2 NTs/FTO samples were sintered at 450, 550 and 630°C, in ambient air. The thermal treatment did not influence the crystal phase composition, preserving in all cases the anatase single phase. As expected, the crystalline anatase quality improved with the annealing temperature. Nevertheless, slight differences in nanotubular morphology, such as the appearance of grains inside the walls, were observed in the case of the sample sintered at 630°C. Chemical analysis by X-ray Photoelectron Spectroscopy of annealed samples revealed the presence of Sn inside TiO2 NTs, due to diffusion of Sn from the substrate to TiO2. For the substrate was used FTO glass whose top layer consists of SnO2 doped with F. Rutherford Backscattering Spectrometry and Time-of-Flight Elastic Recoil Detection Analysis were carried out to study the elemental depth profile of the films. It was found that the temperature of sintering controls the Sn diffusion inside TiO2 film. Sn atoms diffuse towards the TiO2 NTs surface for the samples annealed at 450 and 550°C. The diffusion is however hindered in the case of the heat treatment at 630°C. Besides, the Ti diffusion into the SnO2 underlayer was observed, together with the formation of TiO2/SnO2 interfaces. One then expected but not a great difference in absorption between samples, since all contained anatase phase, as confirmed by Diffuse Reflectance Spectroscopy. A higher amount of Sn was however detected for the sample annealed at 550°C, which accounts for a slight red absorption shift. The importance of controlling the annealing parameters of the anodized TiO2/FTO structures was highlighted through the formation of TiO2-SnO2 interfaces and the Sn insertion from FTO, which can play an essential role in increasing the photoperformances of TiO2 NTs/FTO based structures of photovoltaic cells.

Published
2022
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15. Fs Laser Patterning of Amorphous As 2 S 3 Thin Films.

Author

Mihai, Claudia, Jipa, Florin, Socol, Gabriel, Kiss, Adrian E., Zamfirescu, Marian, and Velea, Alin

Subjects
THIN films, PULSED laser deposition, LASER pulses, LASERS, EXPERIMENTAL literature, FEMTOSECOND lasers
Abstract

This study investigates the morphological changes induced by femtosecond (fs) laser pulses in arsenic trisulfide (As2S3) thin films and gold–arsenic trisulfide (Au\As2S3) heterostructures, grown by pulsed laser deposition (PLD). By means of a direct laser writing experimental setup, the films were systematically irradiated at various laser power and irradiation times to observe their effects on surface modifications. AFM was employed for morphological and topological characterization. Our results reveal a clear transition threshold between photoexpansion and photoevaporation phenomena under different femtosecond laser power regimes, occurring between 1 and 1.5 mW, irrespective of exposure time. Notably, the presence of a gold layer in the heterostructure minimally influenced this threshold. A maximum photoexpansion of 5.2% was obtained in As2S3 films, while the Au\As2S3 heterostructure exhibited a peak photoexpansion of 0.8%. The study also includes a comparative analysis of continuous-wave (cw) laser irradiation, confirming the efficiency of fs laser pulses in inducing photoexpansion effects. [ABSTRACT FROM AUTHOR]

Published
2024
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20. List of Contributors

Author

Aceves-Serrano, Lucero G., primary, Arul, K. Thanigai, additional, Bhatti, Gurjit Kaur, additional, Bhatti, Jasvinder Singh, additional, Binkhathlan, Ziyad, additional, Bozkır, Asuman, additional, Charoo, Naseem Ahmad, additional, Chircov, Cristina, additional, Das, Ishwar, additional, Dhananjayan, Venugopal, additional, Durgun, M. Ezgi, additional, Farnia, Poopak, additional, Ficai, Anton, additional, Ghanavi, Jalaledin, additional, Gherasim, Oana, additional, Grumezescu, Alexandru Mihai, additional, Grumezescu, Valentina, additional, Güngör, Sevgi, additional, Hwang, Hyundoo, additional, Jampílek, Josef, additional, Kahraman, Emine, additional, Kailasa, Suresh Kumar, additional, Karaca, Melek, additional, Kaur, Sukhjinder, additional, Khan, Mansoor A., additional, Khoee, Sepideh, additional, Koduru, Janardhan Reddy, additional, Kráľová, Katarína, additional, Küçüktürkmen, Berrin, additional, Ladchumananandasivam, Rasiah, additional, Lavasanifar, Afsaneh, additional, Manikandan, E., additional, Newton, Amaldoss M J, additional, Ordaz-Martinez, Karen A., additional, Özsoy, Yıldız, additional, Pandey, Sharad P., additional, Pandey, V.N., additional, Pandey, V.S., additional, Panjakumar, Karunamoorthy, additional, Park, Tae-Jung, additional, Rahimi, Shahnaz, additional, Rahman, Ziyaur, additional, Rao, Anita, additional, Ravichandran, Beerappa, additional, Sen, Somnath, additional, Shukla, Tripti, additional, Singh, Bhupinder, additional, Socol, Gabriel, additional, Sudheesh, M.S., additional, Tiwari, Neha, additional, Upmanyu, Neeraj, additional, Vazquez-Piñon, Matias, additional, Velayati, Ali Akbar, additional, and Vijayvergiya, Rajesh, additional

Published
2019
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23. Synthesis and Anti-Melanoma Activity of L-Cysteine-Coated Iron Oxide Nanoparticles Loaded with Doxorubicin

Author

Toderascu, Luiza Izabela, primary, Sima, Livia Elena, additional, Orobeti, Stefana, additional, Florian, Paula Ecaterina, additional, Icriverzi, Madalina, additional, Maraloiu, Valentin-Adrian, additional, Comanescu, Cezar, additional, Iacob, Nicusor, additional, Kuncser, Victor, additional, Antohe, Iulia, additional, Popescu-Pelin, Gianina, additional, Stanciu, George, additional, Ionita, Petre, additional, Mihailescu, Cristian N., additional, and Socol, Gabriel, additional

Published
2023
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29. Effects of Solvent Additive and Micro-Patterned Substrate on the Properties of Thin Films Based on P3HT:PC70BM Blends Deposited by MAPLE

Author

Socol, Marcela, primary, Preda, Nicoleta, additional, Breazu, Carmen, additional, Petre, Gabriela, additional, Stanculescu, Anca, additional, Stavarache, Ionel, additional, Popescu-Pelin, Gianina, additional, Stochioiu, Andrei, additional, Socol, Gabriel, additional, Iftimie, Sorina, additional, Thanner, Christine, additional, and Rasoga, Oana, additional

Published
2022
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30. Effect of Aluminum Nanostructured Electrode on the Properties of Bulk Heterojunction Based Heterostructures for Electronics

Author

Rasoga, Oana, primary, Breazu, Carmen, additional, Socol, Marcela, additional, Solonaru, Ana-Maria, additional, Vacareanu, Loredana, additional, Petre, Gabriela, additional, Preda, Nicoleta, additional, Stanculescu, Florin, additional, Socol, Gabriel, additional, Girtan, Mihaela, additional, and Stanculescu, Anca, additional

Published
2022
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36. List of Contributors

Author

Aderibigbe, Blessing A., primary, Aliahmadi, Atousa, additional, Ardalan, Afshan, additional, Azevedo, Erly G., additional, Bahari, Leila Azharshekoufeh, additional, Belica-Pacha, Silwia, additional, Bhattacharya, Sanchari, additional, Bruschi, Marcos L., additional, Buko, Vyacheslav, additional, Caffo, Maria, additional, Caruso, Gerardo, additional, Chakraborty, Rhitabrita, additional, Chauhan, Nagendra S., additional, Chavali, Murthy, additional, Da Silva, Sydnei M., additional, de Francisco, Lizziane M.B., additional, de Siqueira Moura, Marigilson P., additional, de Toledo, Lucas de A.S., additional, Demicheli, Cynthia, additional, Dorcioman, Gabriela, additional, Dwivedi, Charu, additional, Frézard, Frédéric, additional, Gopanna, Aravinthan, additional, Grassi, Giovanni, additional, Grumezescu, Valentina, additional, Gumustas, Mehmet, additional, Gupta, Madhu, additional, Hakemi-Vala, Mojdeh, additional, Javadzadeh, Yousef, additional, Jeswani, Gunjan, additional, Joshi, Amita, additional, Koruga, Djuro, additional, Krishnaswamy, Kiruba, additional, Lebaka, Veeranjaneya R., additional, Matija, Lidija, additional, Mazzaglia, Antonino, additional, Merlo, Lucia, additional, Mileusnic, Ivana, additional, Mishra, Shanti Bhushan, additional, Mishra, Vimal P., additional, Mukaya, Hembe E., additional, Mukherjee, Biswajit, additional, Muncan, Jelena, additional, Narala, Venkata Ramireddy, additional, Negut, Irina, additional, Orsat, Valérie, additional, Ozkan, Sibel A., additional, Palecz, Bartlomiej, additional, Panati, Kalpana, additional, Pandey, Avinash C., additional, Pandey, Himanshu, additional, Pandey, Ishan, additional, Patel, Bharat G., additional, Patel, Mrunali R., additional, Patel, Rashmin B., additional, Patil, Sandip, additional, Paul, Swarnali D., additional, Pereira, Raphaela R. de A., additional, Pignataro, Cinzia, additional, Piperno, Anna, additional, Primo, Fernando L., additional, Pund, Swati, additional, Rafati, Hassan, additional, Rajagopalan, Manasa D., additional, Rajan, Krishna P., additional, Ramteke, Pramod W., additional, Reddy, Dharaneeswara D., additional, Ribeiro, Raul R., additional, Rosseto, Hélen C., additional, Satapathy, Bhabani S., additional, Scala, Angela, additional, Scolaro, Luigi M., additional, Sengel-Turk, Ceyda T., additional, Sharma, Vikas, additional, Shirzadfar, Hamidreza, additional, Socol, Gabriel, additional, Sridhar, Katta A., additional, Subramani, Parasuraman A., additional, Taheri-Kafrani, Asghar, additional, Tavassoli-Kafrani, Elham, additional, Tedesco, Antonio C., additional, Thakore, Shivam D., additional, Thomas, Selvin P., additional, Tot, Ema, additional, Uslu, Bengi, additional, Valluru, Rajashekar, additional, Verma, Gaurav, additional, and Zavodnik, Ilya, additional

Published
2017
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38. Study on the Parameters of MAPLE and PLD Coating Technologies for Optimal Corrosion Resistance of MnTa2O6 Pseudo-Binary Oxide and 5,10-(4-Carboxy-Phenyl)-15,20-(4-Phenoxy-Phenyl)-Porphyrin Thin Film Coating System

Author

Murariu, Alin Constantin, Cocard, Marius, Geana, Alexandru Adrian, and Socol, Gabriel

Abstract

This paper presents the results of factorial experiment applied to optimize Matrix‑Assisted Pulsed Laser Evaporation (MAPLE) and Pulsed Laser Deposition (PLD) coating technologies used to improve the corrosion resistance of steels. MnTa2O6 pseudo-binary oxides and 5,10-(4-carboxy-phenyl)-15,20-(4-phenoxy-phenyl)-porphyrin was used for these experiments to obtained thin film coating system of hybrid nanostructures. Based on factorial experiments, correlations between the main technological parameters of the coating process (MAPLE laser energy EMAPLE [mJ], PLD laser energy EPLD [mJ]) and porphyrin concentration and the main related property of the coating system (corrosion protection factor) were determined. The base material used as substrate in the experiments was S235JR+C. Electrochemical measurements showed that by applying the appropriate parameters of the coating technologies, homogeneous layered sandwich thin films were obtained and corrosion rate was reduced by more than 7 times.

Published
2023
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40. Effects of Solvent Additive and Micro-Patterned Substrate on the Properties of Thin Films Based on P3HT:PC70BM Blends Deposited by MAPLE.

Author

Socol, Marcela, Preda, Nicoleta, Breazu, Carmen, Petre, Gabriela, Stanculescu, Anca, Stavarache, Ionel, Popescu-Pelin, Gianina, Stochioiu, Andrei, Socol, Gabriel, Iftimie, Sorina, Thanner, Christine, and Rasoga, Oana

Subjects
THIN films, PULSED lasers, MAPLE, ADDITIVES, NANOIMPRINT lithography
Abstract

Lately, there is a growing interest in organic photovoltaic (OPV) cells due to the organic materials' properties and compatibility with various types of substrates. However, their efficiencies are low relative to the silicon ones; therefore, other ways (i.e., electrode micron/nanostructuring, synthesis of new organic materials, use of additives) to improve their performances are still being sought. In this context, we studied the behavior of the common organic bulk heterojunction (P3HT:PC70BM) deposited by matrix-assisted pulsed laser evaporation (MAPLE) with/without 0.3% of 1,8-diiodooctane (DIO) additive on flat and micro-patterned ITO substrates. The obtained results showed that in the MAPLE process, a small quantity of additive can modify the morphology of the organic films and decrease their roughness. Besides the use of the additive, the micro-patterning of the electrode leads to a greater increase in the absorption of the studied photovoltaic structures. The inferred values of the filling factors for the measured cells in ambient conditions range from 19% for the photovoltaic structures with no additive and without substrate patterning to 27% for the counterpart structures with patterning and a small quantity of additive. [ABSTRACT FROM AUTHOR]

Published
2023
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