Efficient tandem solar cells with solution-processed perovskite on textured crystalline silicon
Abstract
Wide–band gap perovskites could boost the efficiency of silicon solar cells by forming tandem cells, but usually the perovskite must be grown on a smoothed side of the silicon cell because the material grown on the rough light-trapping side often does not fully coat the silicon surface and its rough texture is prone to phase separation. Hou et al. grew thick films of a perovskite with a band gap of ∼1.68 electron volts and used a passivant, 1-butanethiol, to limit its phase separation. The tandem cells had a certified power conversion efficiency of 25.7% and had negligible losses after 400 hours of operation.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 06, 2020
- Source ID
- 10.1126/science.aaz3691
Entities
People
- Alessandro J Mirabelli
- Andrew Johnston
- Ashraful H Chowdhury
- Behzad Bahrami
- Bin Chen
- Chuanxiao Xiao
- Derya Baran
- Ding-Jiang Xue
- Edward H. Sargent
- Emmanuel Van Kerschaver
- Erkan Aydin
- Furkan H Isikgor
- Hao Chen
- Joel Troughton
- Kai Zhu
- Makhsud I Saidaminov
- Michele De Bastiani
- Mingyang Wei
- Qiquan Qiao
- Rawan Jalmood
- Se-Woong Baek
- Stefaan De Wolf
- Thomas G Allen
- Yi Hou
- Yitong Dong
- Ziru Huang
Organizations
- King Abdullah University of Science and Technology
- National Renewable Energy Laboratory
- South Dakota State University
- United States Department of Energy
- University of Toronto