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

Hou, Yi; Aydın, Erkan; Bastiani, Michele De; Xiao, Chuanxiao; Isikgor, Furkan H.; Xue, Ding‐Jiang; Chen, Bin; Chen, Hao; Bahrami, Behzad; Chowdhury, Ashraful Haider; Johnston, Andrew; Baek, Se‐Woong; Huang, Ziru; Wei, Mingyang; Dong, Yitong; Troughton, Joel; Jalmood, Rawan; Mirabelli, Alessandro J.; Allen, Thomas G.; Kerschaver, Emmanuel Van; Saidaminov, Makhsud I.; Baran, Derya; Qiao, Qiquan; Zhu, Kai; Wolf, Stefaan De; Sargent, Edward H.

doi:10.1126/science.aaz3691

articleScienceMar 6, 2020GREEN OA

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

YHYi Hou EAErkan Aydın MDMichele De Bastiani CXChuanxiao Xiao FHFurkan H. Isikgor

University of Toronto · King Abdullah University of Science and Technology · +2 more institutions

PubMed

Indexed incrossrefpubmed

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…

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Topics & keywords

Topics

Keywords

Tandem
Perovskite (structure)
Silicon
Materials science
Energy conversion efficiency
Band gap
Optoelectronics
Crystalline silicon

UN Sustainable Development Goals

Affordable and clean energy

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