articleJournal of the American Chemical SocietyApr 25, 2017GREEN OA

Highly Oriented Low-Dimensional Tin Halide Perovskites with Enhanced Stability and Photovoltaic Performance

YLYuqin LiaoHLHefei LiuWZWenjia ZhouDYDongwen YangYSYuequn Shang

Chinese Academy of Sciences · ShanghaiTech University · +4 more institutions

PubMed
Indexed incrossrefpubmed

Abstract

The low toxicity and a near-ideal choice of bandgap make tin perovskite an attractive alternative to lead perovskite in low cost solar cells. However, the development of Sn perovskite solar cells has been impeded by their extremely poor stability when exposed to oxygen. We report low-dimensional Sn perovskites that exhibit markedly enhanced air stability in comparison with their 3D counterparts. The reduced degradation under air exposure is attributed to the improved thermodynamic stability after dimensional reduction, the encapsulating organic ligands, and the compact perovskite film preventing oxygen ingress. We then explore these highly oriented low-dimensional Sn perovskite films in solar cells. The…

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Topics & keywords

Topics
Keywords
  • Perovskite (structure)
  • Halide
  • Chemistry
  • Photovoltaic system
  • Tin
  • Energy conversion efficiency
  • Band gap
  • Optoelectronics
UN Sustainable Development Goals
  • Affordable and clean energy
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