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An electrode design rule for high performance top-illuminated organic photovoltaics

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Tyler, Martin S., Nadeem, Immad M. and Hatton, Ross A. (2016) An electrode design rule for high performance top-illuminated organic photovoltaics. Materials Horizons, 3 . pp. 348-354. doi:10.1039/c6mh00124f

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Official URL: http://dx.doi.org/10.1039/C6MH00124F

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Abstract

An electrode design rule for high performance top-illuminated bulk-heterojunction organic photovoltaics is proposed, that enables the device architecture to be simplified by removing the need for the electron selective layer at the interface with the low work function reflective electrode. This new guideline for electrode design is underpinned by device studies in conjunction with a study of the energetics at the interface between five widely used solution processed organic semiconductors of both electron donor and acceptor type, and a stable low work function reflective substrate electrode. The magnitude and distribution of space charge resulting from ground-state electron transfer from the electrode into each organic semiconductor upon contact formation is derived from direct measurements of the interfacial energetics using the Kelvin probe technique, which enables the variation in potential across the entire film thickness used in the devices to be probed.

Item Type: Journal Article
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Science > Chemistry
Library of Congress Subject Headings (LCSH): Photovoltaic power generation, Electrodes
Journal or Publication Title: Materials Horizons
Publisher: Royal Society of Chemistry
ISSN: 2051-6347
Official Date: 9 May 2016
Dates:
DateEvent
9 May 2016Available
9 May 2016Accepted
21 April 2016Submitted
Volume: 3
Page Range: pp. 348-354
DOI: 10.1039/c6mh00124f
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access
Funder: Engineering and Physical Sciences Research Council (EPSRC), European Regional Development Fund (ERDF), Advantage West Midlands (AWM)
Grant number: EP/K503204/1 (EPSRC), EP/N009096/1 (EPSRC), EP/J500586/1 (EPSRC)
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