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Your search keyword '"Wu, Chun-Guey"' showing total 439 results
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439 results on '"Wu, Chun-Guey"'

5. Tin Oxide/Amphiphilic Polymer Double‐Layered Hole Transporter for High‐Efficiency Tin Perovskite Solar Modules.

Author

Chiang, Chien‐Hung, Chen, Hung‐Tse, Chen, Wun‐Yu, Wang, Wei‐Ting, Feng, Shien‐Ping, and Wu, Chun‐Guey

Subjects
ENERGY levels (Quantum mechanics), FRONTIER orbitals, TIN oxides, HOLE mobility, POLYMERS
Abstract

An exquisite, engineering of two poor hole transporting materials (HTMs, SnO, and PDTON) to form an excellent double‐layered HTL (SnO/PDTON) for inverted tin‐perovskite solar modules (TPSMs) is developed. SnO/PDTON has better photovoltaic performance than the commonly used PEDOT:PSS HTM when large‐area TPSMs are fabricated. Thermally evaporated SnO (that is a simple, available oxide with high hole mobility, good transparency, and adjustable frontier orbitals energy levels) film is used as a main hole transporting layer (HTL). Amphiphilic polymer PDTON (having the amine and ether groups on the side chains) film is used as a Co‐HTL, cross‐linker, passivator, and interface modification agent, as unveiled various physicochemical studies. Double‐layered SnO/PDTON with a flat morphology and good affinity toward perovskite precursor solution creates also a proper surface for depositing large‐area, high‐quality TPsk film. Therefore, TPSM (25.2 cm2 active area on 10 cm × 10 cm ITO substrate) based on double‐layered SnO/PDTON HTL achieving an efficiency over 10% with a negligible current hysteresis is reported for the first time. This study emphasizes not only the exquisite design of combining the specific characteristics of two prosaic HTMs to become a good double‐layered HTL but also gives a direction toward fabricating TPSMs to be applied in all‐perovskite tandem solar module. [ABSTRACT FROM AUTHOR]

Published
2024
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6. A novel ball milling technique for room temperature processing of TiO2 nanoparticles employed as the electron transport layer in perovskite solar cells and modules

Author

Singh, Mriganka, Chiang, Chien-Hung, Boopathi, Karunakara Moorthy, Hanmandlu, Chintam, Li, Gang, Wu, Chun-Guey, Lin, Hong-Cheu, and Chu, Chih-Wei

Subjects
Macromolecular and Materials Chemistry, Materials Engineering, Interdisciplinary Engineering
Abstract

A novel ball milling method was used to prepare TiO2 ETMs at RT ∼ 30 °C for large and small area perovskite solar cells.

Published
2018

7. A novel ball milling technique for room temperature processing of TiO 2 nanoparticles employed as the electron transport layer in perovskite solar cells and modules

Author

Singh, Mriganka, Chiang, Chien-Hung, Boopathi, Karunakara Moorthy, Hanmandlu, Chintam, Li, Gang, Wu, Chun-Guey, Lin, Hong-Cheu, and Chu, Chih-Wei

Subjects
Macromolecular and Materials Chemistry, Chemical Sciences, Physical Chemistry, Engineering, Nanotechnology, Materials Engineering, Interdisciplinary Engineering, Macromolecular and materials chemistry, Chemical engineering, Materials engineering
Abstract

A novel ball milling method was used to prepare TiO2 ETMs at RT ∼ 30 °C for large and small area perovskite solar cells.

Published
2018

12. Sol‐Gel Prepared Spinel HTLs for Assembling 20% Efficiency Perovskite Solar Cell in Air Without Using Anti‐Solvent and Toxic Solvent.

Author

Chiang, Chien‐Hung, Chen, Yen‐Lin, and Wu, Chun‐Guey

Subjects
SOLAR cell efficiency, ANTIREFLECTIVE coatings, SPINEL, THIN films, PEROVSKITE
Abstract

Low‐temperature sol‐gel prepared ZnCo2O4 spinel‐based thin films are developed as high‐performance hole transporting layer (HTL) for coating perovskite film (NA‐Psk) from the basic MAPbI3/ACN/CH3NH2 solution in air without using anti‐solvent. Inverted PSC based on 2 mole% (vs Zn) Cu2+ doped ZnCo2O4 (2%Cu@ZnCo2O4) HTL and NA‐Psk absorber exhibit the maximum power conversion efficiency (PCE) of 20.0% with no current hysteresis while the cell based on ZnCo2O4 and PEDOT:PSS HTL (using NA‐Psk absorber) achieves the PCE of 15.79% and 12.3% with a current hysteresis index of 9.8% and 32.4%, respectively. Without encapsulation, PSCs based on 2%Cu@ZnCo2O4, ZnCo2O4, and PEDOT:PSS HTLs maintain 90%, 77%, and 12%, respectively of the original efficiency by standing in ambient atmosphere (temperature: 20–25 °C, RH:30%–40%) for 1800 h. Large area (10 cm × 10 cm substrate) perovskite mini‐module (PSM) with PCE over 15% is also demonstrated by using sol‐gel prepared 2%Cu@ZnCo2O4 HTL. The poor photovoltaic performance of PEDOT:PSS HTL is due to the basic MAPbI3/ACN/CH3NH2 solution will deprotonate the acidic PEDOT:PSS to reduce its conductivity whereas ZnCo2O4 HTL are not affected by basic perovskite precursor solution. [ABSTRACT FROM AUTHOR]

Published
2023
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41. Dicyclopentadithienothiophene (DCDTT)-based organic semiconductor assisted grain boundary passivation for highly efficient and stable perovskite solar cells

Author

Afraj, Shakil N., primary, Velusamy, Arulmozhi, additional, Chen, Chung-Yu, additional, Ni, Jen-Shyang, additional, Ezhumalai, Yamuna, additional, Pan, Chun-Huang, additional, Chen, Kuan-Yu, additional, Yau, Shueh-Lin, additional, Liu, Cheng-Liang, additional, Chiang, Chien-Hung, additional, Wu, Chun-Guey, additional, and Chen, Ming-Chou, additional

Published
2022
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