Lowerature solution-processed tin oxide as an alternative electron transporting layer for efficient perovskite solar cells

Weijun Ke, Guojia Fang, Qin Liu, Liangbin Xiong, Pingli Qin, Hong Tao, Jing Wang, Hongwei Lei, Borui Li, Jiawei Wan, Guang Yang, Yanfa Yan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1055 Citations (Scopus)

Abstract

Lead halide perovskite solar cells with the high efficiencies typically use higherature processed TiO2 as the electron transporting layers (ETLs). Here, we demonstrate that lowerature solution-processed nanocrystalline SnO2 can be an excellent alternative ETL material for efficient perovskite solar cells. Our best-performing planar cell using such a SnO2 ETL has achieved an average efficiency of 16.02%, obtained from efficiencies measured from both reverse and forward voltage scans. The outstanding performance of SnO2 ETLs is attributed to the excellent properties of nanocrystalline SnO2 films, such as good antireflection, suitable band edge positions, and high electron mobility. The simple lowerature process is compatible with the roll-to-roll manufacturing of low-cost perovskite solar cells on flexible substrates.

Original languageEnglish
Pages (from-to)6730-6733
Number of pages4
JournalJournal of the American Chemical Society
Volume137
Issue number21
DOIs
Publication statusPublished - 3 Jun 2015

ASJC Scopus subject areas

  • Catalysis
  • General Chemistry
  • Biochemistry
  • Colloid and Surface Chemistry

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