In situ investigation of halide incorporation into perovskite solar cells

Aguiar, Jeffery A, Alkurd, Nooraldeen R, Wozny, Sarah, Patel, Maulik K ORCID: 0000-0002-3214-5752, Yang, Mengjin, Zhou, Weilie, Al-Jassim, Mowafak, Holesinger, Terry G, Zhu, Kai and Berry, Joseph J (2017) In situ investigation of halide incorporation into perovskite solar cells. MRS COMMUNICATIONS, 7 (3). pp. 575-582.

	Text Halide Incorporation into Perovskite-Rev-062317.docx - Author Accepted Manuscript Download (75kB)
	Text ESI_Supporting Information_062317.docx - Author Accepted Manuscript Download (3MB)

Official URL: http://dx.doi.org/10.1557/mrc.2017.52

Abstract

Here we report on the material chemistry following crystallization in the presence of water vapor of chlorinated formamidinium lead-triiodide (NH2CH = NH2PbI3-xClx) perovskite films. We found in-situ exposure to water vapor reduces, or possibly eliminates, the retention of chlorine (Cl) inside NH2CH = NH2PbI3-xClx crystals. There is a strong tendency toward Cl volatility, which indicates the sensitivity of these materials for their integration into solar cells. The requisite for additional efforts focused on the mitigation of water vapor is reported. Based on the in situ results, hot casting (<100 °C) in dry conditions demonstrates improved film coverage and Cl retention with efficiencies reaching 12.07%.

Item Type:	Article
Additional Information:	license: Copyright © Materials Research Society 2017
Depositing User:	Symplectic Admin
Date Deposited:	18 Sep 2017 08:06
Last Modified:	26 Mar 2024 15:30
DOI:	10.1557/mrc.2017.52
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3009473