Moisture assisted perovskite film growth for high performance solar cells

Jingbi You, Ziruo Hong, Tze Bin Song, Lei Meng, Yongsheng Liu, Chengyang Jiang, Huanping Zhou, Wei Hsuan Chang, Gang Li, Yang Yang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

683 Citations (Scopus)


Moisture is assumed to be detrimental to organometal trihalide perovskite, as excess water can damage the crystallinity of the perovskite structure. Here, we report a growth mode for via thermal annealing of the perovskite precursor film in a humid environment (e.g., ambient air) to greatly improve the film quality, grain size, carrier mobility, and lifetime. Our method produces devices with maximum power conversion efficiency of 17.1% and a fill factor of 80%, revealing a promising route to achieve high quality perovskite polycrystalline films with superior optoelectronic properties that can pave the way towards efficient photovoltaic conversion.
Original languageEnglish
Article number183902
JournalApplied Physics Letters
Issue number18
Publication statusPublished - 3 Nov 2014
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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