articleScienceDec 22, 2022GREEN OA

Compositional texture engineering for highly stable wide-bandgap perovskite solar cells

QJQi JiangJTJinhui TongRARebecca A. ScheidtXWXiaoming WangAEAmy E. Louks

National Laboratory of the Rockies · University of Toledo · +1 more institution

PubMed
Indexed incrossrefpubmed

Abstract

The development of highly stable and efficient wide-bandgap (WBG) perovskite solar cells (PSCs) based on bromine-iodine (Br–I) mixed-halide perovskite (with Br greater than 20%) is critical to create tandem solar cells. However, issues with Br–I phase segregation under solar cell operational conditions (such as light and heat) limit the device voltage and operational stability. This challenge is often exacerbated by the ready defect formation associated with the rapid crystallization of Br-rich perovskite chemistry with antisolvent processes. We combined the rapid Br crystallization with a gentle gas-quench method to prepare highly textured columnar 1.75–electron volt Br–I mixed WBG perovskite films with…

Citation impact

387
total citations
FWCI
30.46
Percentile
100%
References
69
Citations per year

Authors

18

Topics & keywords

Topics
Keywords
  • Perovskite (structure)
  • Band gap
  • Materials science
  • Tandem
  • Crystallization
  • Energy conversion efficiency
  • Open-circuit voltage
  • Bromine
UN Sustainable Development Goals
  • Affordable and clean energy
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