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Title: Efficient tandem solar cells with solution-processed perovskite on textured crystalline silicon

Abstract

Stacking solar cells with decreasing band gaps to form tandems presents the possibility of overcoming the single-junction Shockley-Queisser limit in photovoltaics. The rapid development of solution-processed perovskites has brought perovskite single-junction efficiencies >20%. However, this process has yet to enable monolithic integration with industry-relevant textured crystalline silicon solar cells. We report tandems that combine solution-processed micrometer-thick perovskite top cells with fully textured silicon heterojunction bottom cells. To overcome the charge-collection challenges in micrometer-thick perovskites, we enhanced threefold the depletion width at the bases of silicon pyramids. Moreover, by anchoring a self-limiting passivant (1-butanethiol) on the perovskite surfaces, we enhanced the diffusion length and further suppressed phase segregation. These combined enhancements enabled an independently certified power conversion efficiency of 25.7% for perovskite-silicon tandem solar cells. These devices exhibited negligible performance loss after a 400-hour thermal stability test at 85°C and also after 400 hours under maximum power point tracking at 40°C.

Authors:
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Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S)
OSTI Identifier:
1603223
Alternate Identifier(s):
OSTI ID: 1605084
Report Number(s):
[NREL/JA-5K00-75985]
[Journal ID: ISSN 0036-8075; /sci/367/6482/1135.atom]
Grant/Contract Number:  
[AC36-08GO28308; ED18DEN3030025; N00014-17-1-2524]
Resource Type:
Published Article
Journal Name:
Science
Additional Journal Information:
[Journal Name: Science Journal Volume: 367 Journal Issue: 6482]; Journal ID: ISSN 0036-8075
Publisher:
AAAS
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; perovskites; textured silicon; wide-band gap; silicon solar cells

Citation Formats

Hou, Yi, Aydin, Erkan, De Bastiani, Michele, Xiao, Chuanxiao, Isikgor, Furkan H., Xue, Ding-Jiang, Chen, Bin, Chen, Hao, Bahrami, Behzad, Chowdhury, Ashraful H., Johnston, Andrew, Baek, Se-Woong, Huang, Ziru, Wei, Mingyang, Dong, Yitong, Troughton, Joel, Jalmood, Rawan, Mirabelli, Alessandro J., Allen, Thomas G., Van Kerschaver, Emmanuel, Saidaminov, Makhsud I., Baran, Derya, Qiao, Qiquan, Zhu, Kai, De Wolf, Stefaan, and Sargent, Edward H. Efficient tandem solar cells with solution-processed perovskite on textured crystalline silicon. United States: N. p., 2020. Web. doi:10.1126/science.aaz3691.
Hou, Yi, Aydin, Erkan, De Bastiani, Michele, Xiao, Chuanxiao, Isikgor, Furkan H., Xue, Ding-Jiang, Chen, Bin, Chen, Hao, Bahrami, Behzad, Chowdhury, Ashraful H., Johnston, Andrew, Baek, Se-Woong, Huang, Ziru, Wei, Mingyang, Dong, Yitong, Troughton, Joel, Jalmood, Rawan, Mirabelli, Alessandro J., Allen, Thomas G., Van Kerschaver, Emmanuel, Saidaminov, Makhsud I., Baran, Derya, Qiao, Qiquan, Zhu, Kai, De Wolf, Stefaan, & Sargent, Edward H. Efficient tandem solar cells with solution-processed perovskite on textured crystalline silicon. United States. doi:10.1126/science.aaz3691.
Hou, Yi, Aydin, Erkan, De Bastiani, Michele, Xiao, Chuanxiao, Isikgor, Furkan H., Xue, Ding-Jiang, Chen, Bin, Chen, Hao, Bahrami, Behzad, Chowdhury, Ashraful H., Johnston, Andrew, Baek, Se-Woong, Huang, Ziru, Wei, Mingyang, Dong, Yitong, Troughton, Joel, Jalmood, Rawan, Mirabelli, Alessandro J., Allen, Thomas G., Van Kerschaver, Emmanuel, Saidaminov, Makhsud I., Baran, Derya, Qiao, Qiquan, Zhu, Kai, De Wolf, Stefaan, and Sargent, Edward H. Thu . "Efficient tandem solar cells with solution-processed perovskite on textured crystalline silicon". United States. doi:10.1126/science.aaz3691.
@article{osti_1603223,
title = {Efficient tandem solar cells with solution-processed perovskite on textured crystalline silicon},
author = {Hou, Yi and Aydin, Erkan and De Bastiani, Michele and Xiao, Chuanxiao and Isikgor, Furkan H. and Xue, Ding-Jiang and Chen, Bin and Chen, Hao and Bahrami, Behzad and Chowdhury, Ashraful H. and Johnston, Andrew and Baek, Se-Woong and Huang, Ziru and Wei, Mingyang and Dong, Yitong and Troughton, Joel and Jalmood, Rawan and Mirabelli, Alessandro J. and Allen, Thomas G. and Van Kerschaver, Emmanuel and Saidaminov, Makhsud I. and Baran, Derya and Qiao, Qiquan and Zhu, Kai and De Wolf, Stefaan and Sargent, Edward H.},
abstractNote = {Stacking solar cells with decreasing band gaps to form tandems presents the possibility of overcoming the single-junction Shockley-Queisser limit in photovoltaics. The rapid development of solution-processed perovskites has brought perovskite single-junction efficiencies >20%. However, this process has yet to enable monolithic integration with industry-relevant textured crystalline silicon solar cells. We report tandems that combine solution-processed micrometer-thick perovskite top cells with fully textured silicon heterojunction bottom cells. To overcome the charge-collection challenges in micrometer-thick perovskites, we enhanced threefold the depletion width at the bases of silicon pyramids. Moreover, by anchoring a self-limiting passivant (1-butanethiol) on the perovskite surfaces, we enhanced the diffusion length and further suppressed phase segregation. These combined enhancements enabled an independently certified power conversion efficiency of 25.7% for perovskite-silicon tandem solar cells. These devices exhibited negligible performance loss after a 400-hour thermal stability test at 85°C and also after 400 hours under maximum power point tracking at 40°C.},
doi = {10.1126/science.aaz3691},
journal = {Science},
number = [6482],
volume = [367],
place = {United States},
year = {2020},
month = {3}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1126/science.aaz3691

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