ZnO-PCBM bilayers as electron transport layers in low-temperature processed perovskite solar cells

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Title: ZnO-PCBM bilayers as electron transport layers in low-temperature processed perovskite solar cells
Author(s): Zhang, J
Tan, CH
Du, T
Morbidoni, M
Lin, CT
Xu, S
Durrant, JR
McLachlan, MA
Item Type: Journal Article
Abstract: We investigate an electron transport bilayer fabricated at < 110 °C to form all low-temperature processed, thermally stable, efficient perovskite solar cells with negligible hysteresis. The components of the bilayer create a symbiosis that results in improved devices compared with either of the components being used in isolation. A sol-gel derived ZnO layer facilitates improved energy level alignment and enhanced charge carrier extraction and a [6,6]-phenyl-C 61 -butyric acid methyl ester (PCBM) layer to reduce hysteresis and enhance perovskite thermal stability. The creation of a bilayer structure allows materials that are inherently unsuitable to be in contact with the perovskite active layer to be used in efficient devices through simple surface modification strategies.
Publication Date: 5-Feb-2018
Date of Acceptance: 22-Jan-2018
URI: http://hdl.handle.net/10044/1/58644
DOI: https://dx.doi.org/10.1016/j.scib.2018.02.004
ISSN: 2095-9273
Publisher: Elsevier
Start Page: 343
End Page: 348
Journal / Book Title: Science Bulletin
Volume: 63
Issue: 6
Copyright Statement: © 2018 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor/Funder: EPSRC
Funder's Grant Number: EP/L016702/1
Publication Status: Published
Embargo Date: 2019-02-05
Appears in Collections:Faculty of Engineering
Materials
Chemistry
Faculty of Natural Sciences



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