Improved air-stability of an organic-inorganic perovskite with anhydrously transferred graphene

Xinpeng Shen, Mengye Wang, Feichi Zhou, Bocheng Qiu, Lejuan Cai, Yanghui Liu, Zijian Zheng, Yang Chai

Research output: Journal article publicationJournal articleAcademic researchpeer-review

6 Citations (Scopus)

Abstract

The performance of organic-inorganic perovskite-based devices has rapidly increased in recent years, but the poor air-stability of perovskite materials limits their widespread applications. Here we report a strategy to enhance the air-stability of the CH 3 NH 3 PbI 3 (MAPbI 3 ) perovskite with trilayer graphene on top of it by an anhydrous transfer method. Our morphological characterization shows good adhesion at the interface of the graphene/perovskite film. The time dependent X-ray diffraction spectra of perovskite films demonstrate enhanced stability of graphene-coated films during exposure to the ambient environment. The protected perovskite film is also evidenced by photoluminescence and absorbance measurements. This graphene transfer method without the use of water has the potential to enhance the air-stability of perovskites as well as other moisture sensitive materials.

Original languageEnglish
Pages (from-to)8663-8669
Number of pages7
JournalJournal of Materials Chemistry C
Volume6
Issue number32
DOIs
Publication statusPublished - 1 Jan 2018

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

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