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Enhanced UV-light stability of planar heterojunction perovskite solar cells with caesium bromide interface modification

Li, Wenzhe, Zhang, Wei, Van Reenen, Stephan, Sutton, Rebecca J., Fan, Jiandong, Haghighirad, Amir A., Johnston, Michael B., Wang, Liduo and Snaith, Henry J. (2016) Enhanced UV-light stability of planar heterojunction perovskite solar cells with caesium bromide interface modification Energy and Environmental Science, 9 (2). pp. 490-498.

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Abstract

Interfacial engineering has been shown to play a vital role in boosting the performance of perovskite solar cells in the past few years. Here we demonstrate that caesium bromide (CsBr), as an interfacial modifier between the electron collection layer and the CH3NH3PbI3−xClx absorber layer, can effectively enhance the stability of planar heterojunction devices under ultra violet (UV) light soaking. Additionally, the device performance is improved due to the alleviated defects at the perovskite-titania heterojunction and enhanced electron extraction.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
NameEmailORCID
Li, WenzheUNSPECIFIEDUNSPECIFIED
Zhang, Weiwz0003@surrey.ac.ukUNSPECIFIED
Van Reenen, StephanUNSPECIFIEDUNSPECIFIED
Sutton, Rebecca J.UNSPECIFIEDUNSPECIFIED
Fan, JiandongUNSPECIFIEDUNSPECIFIED
Haghighirad, Amir A.UNSPECIFIEDUNSPECIFIED
Johnston, Michael B.UNSPECIFIEDUNSPECIFIED
Wang, LiduoUNSPECIFIEDUNSPECIFIED
Snaith, Henry J.UNSPECIFIEDUNSPECIFIED
Date : 14 February 2016
Funders : Engineering and Physical Sciences Research Council (EPSRC)
Identification Number : https://doi.org/10.1039/C5EE03522H
Copyright Disclaimer : ©The Royal Society of Chemistry 2016. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Depositing User : Clive Harris
Date Deposited : 05 Jun 2017 10:57
Last Modified : 13 Jun 2017 12:56
URI: http://epubs.surrey.ac.uk/id/eprint/841290

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