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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
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 | ||||||||
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| 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: |
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| Date of first compliant deposit: | 2 June 2016 | ||||||||
| 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) | ||||||||
| Adapted As: |
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