High-efficiency perovskite photovoltaic modules achieved via cesium doping
Abstract
Perovskite solar modules have been attracting increasing attention due to their market potential, yet publications concerned with theintrinsic scale-up potential of different perovskite compositions remain relatively scarce. On the other hand, while great success is being made towards improving the power conversion efficiency (PCE) of perovskite solar cells (PSCs) by cesium cation (Cs+) doping of the perovskite, more attention is being paid to the perovskite phase stabilization effect of Cs+ doping, and less to other properties that are critical to understand and futher improve the PSC's. In this work, moderately-Cs-doped MAPbI3 was employed as a model perovskite material in order to exclude the phase stabilization effect. Our systematic study revealed the influence of Cs+ in organic-inorganic hybrid perovskites on the crystal structure, crystallization process, trap state density, band structure and charge (i.e., ions or photo-carriers) transport. Markedly, it has been observed that Cs+ doping can greatly increase the carrier diffusion length in the perovskite films, thus improving the potential to scale-up PSC's.The PCE of small area devices (0.09 cm2) was increased to 21.72% from 19.73%, with decreased hysteresis behavior and increased operational stability (T85 = 1000 h) after Cs+ doped, where T85 refers to the retention of 85% of themore »
- Authors:
-
- Tianjin Univ., Tianjin (China); Ecole Polytechnique Federale Lausanne (Switzerland)
- National Renewable Energy Lab. (NREL), Golden, CO (United States); Brown Univ., Providence, RI (United States)
- Ecole Polytechnique Federale Lausanne (Switzerland)
- Brown Univ., Providence, RI (United States)
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Toyota Motor Corporation (Belgium)
- Tianjin Univ., Tianjin (China)
- Publication Date:
- Research Org.:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
- OSTI Identifier:
- 1839235
- Report Number(s):
- NREL/JA-5900-81567
Journal ID: ISSN 1385-8947; MainId:82340;UUID:09b59ff8-0ddd-4b93-bc2d-bd6f54800a5e;MainAdminID:63568
- Grant/Contract Number:
- AC36-08GO28308
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Chemical Engineering Journal
- Additional Journal Information:
- Journal Volume: 431; Journal Issue: Part 4; Journal ID: ISSN 1385-8947
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 14 SOLAR ENERGY; Cs+ doping; high efficiency; long diffusion length; perovskite modules; upscaling
Citation Formats
Liu, Xuehui, Chen, Min, Zhang, Yi, Xia, Jianxing, Yin, Junze, Li, Mo, Brooks, Keith Gregory, Hu, Ruiyuan, Gao, Xiaoxin, Kim, Young-Hoon, Züttel, Andreas, Luther, Joseph M., Kinge, Sachin, Feng, Yaqing, and Nazeeruddin, Mohammad Khaja. High-efficiency perovskite photovoltaic modules achieved via cesium doping. United States: N. p., 2021.
Web. doi:10.1016/j.cej.2021.133713.
Liu, Xuehui, Chen, Min, Zhang, Yi, Xia, Jianxing, Yin, Junze, Li, Mo, Brooks, Keith Gregory, Hu, Ruiyuan, Gao, Xiaoxin, Kim, Young-Hoon, Züttel, Andreas, Luther, Joseph M., Kinge, Sachin, Feng, Yaqing, & Nazeeruddin, Mohammad Khaja. High-efficiency perovskite photovoltaic modules achieved via cesium doping. United States. https://doi.org/10.1016/j.cej.2021.133713
Liu, Xuehui, Chen, Min, Zhang, Yi, Xia, Jianxing, Yin, Junze, Li, Mo, Brooks, Keith Gregory, Hu, Ruiyuan, Gao, Xiaoxin, Kim, Young-Hoon, Züttel, Andreas, Luther, Joseph M., Kinge, Sachin, Feng, Yaqing, and Nazeeruddin, Mohammad Khaja. Fri .
"High-efficiency perovskite photovoltaic modules achieved via cesium doping". United States. https://doi.org/10.1016/j.cej.2021.133713. https://www.osti.gov/servlets/purl/1839235.
@article{osti_1839235,
title = {High-efficiency perovskite photovoltaic modules achieved via cesium doping},
author = {Liu, Xuehui and Chen, Min and Zhang, Yi and Xia, Jianxing and Yin, Junze and Li, Mo and Brooks, Keith Gregory and Hu, Ruiyuan and Gao, Xiaoxin and Kim, Young-Hoon and Züttel, Andreas and Luther, Joseph M. and Kinge, Sachin and Feng, Yaqing and Nazeeruddin, Mohammad Khaja},
abstractNote = {Perovskite solar modules have been attracting increasing attention due to their market potential, yet publications concerned with theintrinsic scale-up potential of different perovskite compositions remain relatively scarce. On the other hand, while great success is being made towards improving the power conversion efficiency (PCE) of perovskite solar cells (PSCs) by cesium cation (Cs+) doping of the perovskite, more attention is being paid to the perovskite phase stabilization effect of Cs+ doping, and less to other properties that are critical to understand and futher improve the PSC's. In this work, moderately-Cs-doped MAPbI3 was employed as a model perovskite material in order to exclude the phase stabilization effect. Our systematic study revealed the influence of Cs+ in organic-inorganic hybrid perovskites on the crystal structure, crystallization process, trap state density, band structure and charge (i.e., ions or photo-carriers) transport. Markedly, it has been observed that Cs+ doping can greatly increase the carrier diffusion length in the perovskite films, thus improving the potential to scale-up PSC's.The PCE of small area devices (0.09 cm2) was increased to 21.72% from 19.73%, with decreased hysteresis behavior and increased operational stability (T85 = 1000 h) after Cs+ doped, where T85 refers to the retention of 85% of the initial PCE. Moreover, a PCE of 21.08% was obtained for a Cs+-containing perovskite module with an active area > 30 cm2, which demonstrates a better "reproducibility" than the reference sample (MAPbI3-based perovskite modules, PCE = 18.26%).},
doi = {10.1016/j.cej.2021.133713},
journal = {Chemical Engineering Journal},
number = Part 4,
volume = 431,
place = {United States},
year = {Fri Nov 26 00:00:00 EST 2021},
month = {Fri Nov 26 00:00:00 EST 2021}
}
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