Efficient and Stable Graded CsPbI3−xBrx Perovskite Solar Cells and Submodules by Orthogonal Processable Spray Coating
Abstract
Inorganic perovskite solar cells (PSCs) are promising for achieving long-term operational stability with good device performance. In this work, we report the fabrication of inorganic CsPbI2Br-based perovskite thin films with a well-defined CsPbI3-xBrx composition gradient in the surface region by a scalable, orthogonal processable spray-coating approach. The graded structure broadens absorption wavelength range and increases carrier lifetime, but it also causes electrical field redistribution within a device stack for more efficient charge separation and collection. With this approach, we obtained a power conversion efficiency of 16.81% for a 0.096-cm2 PSC. We further demonstrated a monolithically integrated perovskite submodule based on the graded CsPbI3-xBrx by spray coating with an efficiency of 13.82% (112-cm2 aperture area) and ~9% degradation over 1,000-h continuous 1-sun light soaking.
- Authors:
- 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; National Research Foundation of Korea (NRF); Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- OSTI Identifier:
- 1845572
- Alternate Identifier(s):
- OSTI ID: 1766880; OSTI ID: 1781193
- Report Number(s):
- NREL/JA-5900-78348
Journal ID: ISSN 2542-4351; S2542435120306097; PII: S2542435120306097
- Grant/Contract Number:
- AC36-08GO28308; 2014R1A5A1009799; 2017M3A7B4041696; 20183010013820
- Resource Type:
- Published Article
- Journal Name:
- Joule
- Additional Journal Information:
- Journal Name: Joule Journal Volume: 5 Journal Issue: 2; Journal ID: ISSN 2542-4351
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 14 SOLAR ENERGY; CsPbI2Br; perovskite; solar cells; modules; spray coating
Citation Formats
Heo, Jin Hyuck, Zhang, Fei, Xiao, Chuanxiao, Heo, Su Jeong, Park, Jin Kyoung, Berry, Joseph J., Zhu, Kai, and Im, Sang Hyuk. Efficient and Stable Graded CsPbI3−xBrx Perovskite Solar Cells and Submodules by Orthogonal Processable Spray Coating. United States: N. p., 2021.
Web. doi:10.1016/j.joule.2020.12.010.
Heo, Jin Hyuck, Zhang, Fei, Xiao, Chuanxiao, Heo, Su Jeong, Park, Jin Kyoung, Berry, Joseph J., Zhu, Kai, & Im, Sang Hyuk. Efficient and Stable Graded CsPbI3−xBrx Perovskite Solar Cells and Submodules by Orthogonal Processable Spray Coating. United States. https://doi.org/10.1016/j.joule.2020.12.010
Heo, Jin Hyuck, Zhang, Fei, Xiao, Chuanxiao, Heo, Su Jeong, Park, Jin Kyoung, Berry, Joseph J., Zhu, Kai, and Im, Sang Hyuk. Mon .
"Efficient and Stable Graded CsPbI3−xBrx Perovskite Solar Cells and Submodules by Orthogonal Processable Spray Coating". United States. https://doi.org/10.1016/j.joule.2020.12.010.
@article{osti_1845572,
title = {Efficient and Stable Graded CsPbI3−xBrx Perovskite Solar Cells and Submodules by Orthogonal Processable Spray Coating},
author = {Heo, Jin Hyuck and Zhang, Fei and Xiao, Chuanxiao and Heo, Su Jeong and Park, Jin Kyoung and Berry, Joseph J. and Zhu, Kai and Im, Sang Hyuk},
abstractNote = {Inorganic perovskite solar cells (PSCs) are promising for achieving long-term operational stability with good device performance. In this work, we report the fabrication of inorganic CsPbI2Br-based perovskite thin films with a well-defined CsPbI3-xBrx composition gradient in the surface region by a scalable, orthogonal processable spray-coating approach. The graded structure broadens absorption wavelength range and increases carrier lifetime, but it also causes electrical field redistribution within a device stack for more efficient charge separation and collection. With this approach, we obtained a power conversion efficiency of 16.81% for a 0.096-cm2 PSC. We further demonstrated a monolithically integrated perovskite submodule based on the graded CsPbI3-xBrx by spray coating with an efficiency of 13.82% (112-cm2 aperture area) and ~9% degradation over 1,000-h continuous 1-sun light soaking.},
doi = {10.1016/j.joule.2020.12.010},
journal = {Joule},
number = 2,
volume = 5,
place = {United States},
year = {Mon Feb 01 00:00:00 EST 2021},
month = {Mon Feb 01 00:00:00 EST 2021}
}
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