Planar heterojunction perovskite solar cells via vapor-assisted solution process

Qi Chen, Huanping Zhou, Ziruo Hong, Song Luo, Hsin Sheng Duan, Hsin Hua Wang, Yongsheng Liu, Gang Li, Yang Yang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1908 Citations (Scopus)

Abstract

Hybrid organic/inorganic perovskites (e.g., CH3NH3PbI3) as light absorbers are promising players in the field of third-generation photovoltaics. Here we demonstrate a low-temperature vapor-assisted solution process to construct polycrystalline perovskite thin films with full surface coverage, small surface roughness, and grain size up to microscale. Solar cells based on the as-prepared films achieve high power conversion efficiency of 12.1%, so far the highest efficiency based on CH3NH3PbI3with the planar heterojunction configuration. This method provides a simple approach to perovskite film preparation and paves the way for high reproducibility of films and devices. The underlying kinetic and thermodynamic parameters regarding the perovskite film growth are discussed as well.
Original languageEnglish
Pages (from-to)622-625
Number of pages4
JournalJournal of the American Chemical Society
Volume136
Issue number2
DOIs
Publication statusPublished - 15 Jan 2014
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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