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13 results on '"Ou, Zeping"'

4. Orientation Manipulation and Defect Passivation for Perovskite Solar Cells by a Natural Compound

Author

Ouyang, Yunfei, primary, Ou, Zeping, additional, Mwakitawa, Ibrahim Mwamburi, additional, Xia, Tianyu, additional, Pan, Yi, additional, Wang, Can, additional, Gao, Qin, additional, Zhang, Bo, additional, Chen, Kun, additional, He, Zijuan, additional, Shumilova, Tatyana, additional, Guo, Bing, additional, Zheng, Yujie, additional, Jiang, Tingming, additional, Ma, Zhu, additional, and Sun, Kuan, additional

Published
2024
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5. Bulk In Situ Reconstruction of Heterojunction Perovskite Enabling Stable Solar Cells Over 24% Efficiency

Author

Hou, Shanyue, primary, Ma, Zhu, additional, Li, Yanlin, additional, Du, Zhuowei, additional, Chen, Yi, additional, Yang, Junbo, additional, You, Wei, additional, Yang, Qiang, additional, Yu, Tangjie, additional, Huang, Zhangfeng, additional, Li, Guomin, additional, Wang, Haoyu, additional, Liu, Qianyu, additional, Yan, Guangyuan, additional, Li, Haimin, additional, Huang, Yuelong, additional, Zhang, Wenhua, additional, Abdi‐Jalebi, Mojtaba, additional, Ou, Zeping, additional, Sun, Kuan, additional, Su, Rong, additional, and Long, Wei, additional

Published
2023
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6. Bulk In Situ Reconstruction of Heterojunction Perovskite Enabling Stable Solar Cells Over 24% Efficiency.

Author

Hou, Shanyue, Ma, Zhu, Li, Yanlin, Du, Zhuowei, Chen, Yi, Yang, Junbo, You, Wei, Yang, Qiang, Yu, Tangjie, Huang, Zhangfeng, Li, Guomin, Wang, Haoyu, Liu, Qianyu, Yan, Guangyuan, Li, Haimin, Huang, Yuelong, Zhang, Wenhua, Abdi‐Jalebi, Mojtaba, Ou, Zeping, and Sun, Kuan

Subjects
PHOTOVOLTAIC power systems, SOLAR cells, HETEROJUNCTIONS, PEROVSKITE, SURFACE recombination, CRYSTAL grain boundaries
Abstract

Heterojunction perovskite solar cells combine the stability of 2D perovskites and the high efficiency of 3D perovskites, making them an excellent photovoltaic candidate. While heterojunctions with intermixed or gradient perovskites can reduce surface recombination, the aggregation and phase distribution of 2D perovskite induce transport losses, thereby limiting device fill factors. Accordingly, a bulk in situ reconstruction (BISR) strategy is proposed to induce the reconstruction of 3D perovskites on a minim self‐assembled 2D crystal seed, forming heterojunction perovskite that runs through the entire active layer. This facilitates charge extraction, relieves tensile stress, and avoids the decomposition of perovskite on grain boundaries. As a result, the best‐performing heterojunction perovskite solar cells show a high‐power conversion efficiency (PCE) of 24.06% with 82.9% FF for the small‐area device (0.105 cm2) and a superior PCE of 19.2% for the large‐area module (5 × 5 cm2). Importantly, the unencapsulated device shows dramatically improved operational stability, maintaining 87% of its initial efficiency after 8000 h of storage under ambient atmosphere at room temperature. This work provides an effective and simple approach to establish heterojunction perovskite to simultaneously boost the efficiency and stability of PSCs. [ABSTRACT FROM AUTHOR]

Published
2024
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7. An Ionic Thermoelectric Material with Long Operation Duration and High Energy Density

Author

He, Yongjie, primary, Li, Shaowei, additional, Chen, Rui, additional, Liu, Xu, additional, Odunmbaku, George, additional, Fang, Wei, additional, Lin, Xiaoxue, additional, Ou, Zeping, additional, Gou, Qianzhi, additional, Wang, Jiacheng, additional, Ouedraogo, Nabonswende, additional, Li, Jing, additional, Li, Meng, additional, Li, Chen, additional, Zheng, Yujie, additional, Chen, Shanshan, additional, Zhou, Yongli, additional, and Sun, Kuan, additional

Published
2023
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8. Ionic Thermoelectric Materials with Long Operation and High Energy Density

Author

Sun, Kuan, primary, He, Yongjie, additional, Li, Shaowei, additional, Chen, Rui, additional, Odunmbaku, George Omololu, additional, Fang, Wei, additional, Lin, Xiaoxue, additional, Ou, Zeping, additional, Gou, Qianzhi, additional, Wang, Jiacheng, additional, Ouedraogo, Nabonswende Aida Nadege, additional, Li, Jing, additional, Li, Meng, additional, Li, Chen, additional, Zheng, Yujie, additional, Chen, Shanshan, additional, and Zhou, Yongli, additional

Published
2022
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9. Simultaneous Interfacial Modification and Crystallization Control by Biguanide Hydrochloride for Stable Perovskite Solar Cells with PCE of 24.4% (Adv. Mater. 8/2022)

Author

Xiong, Zhuang, primary, Chen, Xiao, additional, Zhang, Bo, additional, Odunmbaku, George Omololu, additional, Ou, Zeping, additional, Guo, Bing, additional, Yang, Ke, additional, Kan, Zhipen, additional, Lu, Shirong, additional, Chen, Shanshan, additional, Ouedraogo, Nabonswende Aida Nadege, additional, Cho, Yongjoon, additional, Yang, Changduk, additional, Chen, Jiangzhao, additional, and Sun, Kuan, additional

Published
2022
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