Surface-related properties of perovskite CH3NH3PbI3 thin films by aerosol-assisted chemical vapour deposition

M. Afzaal*, B. Salhi, A. Al-Ahmed, H. M. Yates, A. S. Hakeem

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

A modified three-step aerosol-assisted chemical vapour deposition process was used to grow dense and uniform CH3NH3PbI3 thin films directly on borosilicate glass. The resulting photoluminescence spectrum was blue shifted with respect to its bandgap. X-ray photoelectron spectroscopy studies confirmed non-stoichiometric lead: iodine ratios within the films, due to decomposition of the CH3NH3PbI3 layers over time into lead iodide and the release of ammonia and hydrogen iodide. The complex refractive index and dielectric function of the deposited thin films were determined by variable angle spectroscopic ellipsometry.

Original languageEnglish
Pages (from-to)8366-8370
Number of pages5
JournalJournal of Materials Chemistry C
Volume5
Issue number33
DOIs
StatePublished - 2017

Bibliographical note

Publisher Copyright:
© The Royal Society of Chemistry.

ASJC Scopus subject areas

  • General Chemistry
  • Materials Chemistry

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