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Title: Sub-1.4eV bandgap inorganic perovskite solar cells with long-term stability

Abstract

State-of-the-art halide perovskite solar cells have bandgaps larger than 1.45 eV, which restricts their potential for realizing the Shockley-Queisser limit. Previous search for low-bandgap (1.2 to 1.4 eV) halide perovskites has resulted in several candidates, but all are hybrid organic-inorganic compositions, raising potential concern regarding device stability. Here we show the promise of an inorganic low-bandgap (1.38 eV) CsPb 0.6Sn 0.4I 3 perovskite stabilized via interface functionalization. Device efficiency up to 13.37% is demonstrated. The device shows high operational stability under one-sun-intensity illumination, with T 80 and T 70 lifetimes of 653 h and 1045 h, respectively ( T 80 and T 70 represent efficiency decays to 80% and 70% of the initial value, respectively), and long-term shelf stability under nitrogen atmosphere. Controlled exposure of the device to ambient atmosphere during a long-term (1000 h) test does not degrade the efficiency. These findings point to a promising direction for achieving low-bandgap perovskite solar cells with high stability.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3];  [3]; ORCiD logo [3];  [3];  [3];  [2];  [2];  [4];  [4];  [4];  [4]; ORCiD logo [5]; ORCiD logo [6]; ORCiD logo [2];  [2]
+ Show Author Affiliations
  1. Kunming Univ. of Science and Technology, Yunan (China); Brown Univ., Providence, RI (United States)
  2. Brown Univ., Providence, RI (United States)
  3. Argonne National Lab. (ANL), Lemont, IL (United States)
  4. Kunming Univ. of Science and Technology, Yunan (China)
  5. Argonne National Lab. (ANL), Lemont, IL (United States); Northwestern Univ., Evanston, IL (United States)
  6. National Renewable Energy Lab. (NREL), Golden, CO (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Scientific User Facilities Division; US Department of the Navy, Office of Naval Research (ONR); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S)
OSTI Identifier:
1582019
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 11; Journal Issue: 1; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY

Citation Formats

Hu, Mingyu, Chen, Min, Guo, Peijun, Zhou, Hua, Deng, Junjing, Yao, Yudong, Jiang, Yi, Gong, Jue, Dai, Zhenghong, Zhou, Yunxuan, Qian, Feng, Chong, Xiaoyu, Feng, Jing, Schaller, Richard D., Zhu, Kai, Padture, Nitin P., and Zhou, Yuanyuan. Sub-1.4eV bandgap inorganic perovskite solar cells with long-term stability. United States: N. p., 2020. Web. doi:10.1038/s41467-019-13908-6.
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Hu, Mingyu, Chen, Min, Guo, Peijun, Zhou, Hua, Deng, Junjing, Yao, Yudong, Jiang, Yi, Gong, Jue, Dai, Zhenghong, Zhou, Yunxuan, Qian, Feng, Chong, Xiaoyu, Feng, Jing, Schaller, Richard D., Zhu, Kai, Padture, Nitin P., & Zhou, Yuanyuan. Sub-1.4eV bandgap inorganic perovskite solar cells with long-term stability. United States. doi:10.1038/s41467-019-13908-6.
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Hu, Mingyu, Chen, Min, Guo, Peijun, Zhou, Hua, Deng, Junjing, Yao, Yudong, Jiang, Yi, Gong, Jue, Dai, Zhenghong, Zhou, Yunxuan, Qian, Feng, Chong, Xiaoyu, Feng, Jing, Schaller, Richard D., Zhu, Kai, Padture, Nitin P., and Zhou, Yuanyuan. Thu . "Sub-1.4eV bandgap inorganic perovskite solar cells with long-term stability". United States. doi:10.1038/s41467-019-13908-6. https://www.osti.gov/servlets/purl/1582019.
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@article{osti_1582019,
title = {Sub-1.4eV bandgap inorganic perovskite solar cells with long-term stability},
author = {Hu, Mingyu and Chen, Min and Guo, Peijun and Zhou, Hua and Deng, Junjing and Yao, Yudong and Jiang, Yi and Gong, Jue and Dai, Zhenghong and Zhou, Yunxuan and Qian, Feng and Chong, Xiaoyu and Feng, Jing and Schaller, Richard D. and Zhu, Kai and Padture, Nitin P. and Zhou, Yuanyuan},
abstractNote = {State-of-the-art halide perovskite solar cells have bandgaps larger than 1.45 eV, which restricts their potential for realizing the Shockley-Queisser limit. Previous search for low-bandgap (1.2 to 1.4 eV) halide perovskites has resulted in several candidates, but all are hybrid organic-inorganic compositions, raising potential concern regarding device stability. Here we show the promise of an inorganic low-bandgap (1.38 eV) CsPb0.6Sn0.4I3 perovskite stabilized via interface functionalization. Device efficiency up to 13.37% is demonstrated. The device shows high operational stability under one-sun-intensity illumination, with T80 and T70 lifetimes of 653 h and 1045 h, respectively (T80 and T70 represent efficiency decays to 80% and 70% of the initial value, respectively), and long-term shelf stability under nitrogen atmosphere. Controlled exposure of the device to ambient atmosphere during a long-term (1000 h) test does not degrade the efficiency. These findings point to a promising direction for achieving low-bandgap perovskite solar cells with high stability.},
doi = {10.1038/s41467-019-13908-6},
journal = {Nature Communications},
number = 1,
volume = 11,
place = {United States},
year = {2020},
month = {1}
}
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DOI:  10.1038/s41467-019-13908-6
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