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

• DOI: 10.1126/science.aaz3691
• Publication Date: 2020-03-06T00:05:44Z
• Authors: Yi Hou; Erkan Aydin; Michele De Bastiani; Chuanxiao Xiao; Furkan H. Isikgor; Ding-Jiang Xue; Bin Chen; Hao Chen; Behzad Bahrami; Ashraful H. Chowd...; Andrew Johnston; Se-Woong Baek; Ziru Huang; Mingyang Wei; Yitong Dong; Joel Troughton; Rawan Jalmood; Alessandro J. Mir...; Thomas G. Allen; Emmanuel Van Kers...; Makhsud I. Saidam...; Derya Baran; Qiquan Qiao; Kai Zhu; Stefaan De Wolf; Edward H. Sargent
• Keywords: Tandem; Texture (cosmology)

Growing perovskite on textured silicon Wide–band gap perovskites could boost the efficiency of solar cells by forming tandem cells, but usually must be grown a smoothed side cell because material rough light-trapping often does not fully coat surface and its texture is prone to phase separation. Hou et al. grew thick films with band ∼1.68 electron volts used passivant, 1-butanethiol, limit The had certified power conversion 25.7% negligible losses after 400 hours operation. Science , this issue p. 1135