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High-performance silver window electrodes for top-illuminated organic photovoltaics using an organo-molybdenum oxide bronze interlayer
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Tyler, Martin S., Walker, Marc and Hatton, Ross A. (2016) High-performance silver window electrodes for top-illuminated organic photovoltaics using an organo-molybdenum oxide bronze interlayer. ACS Applied Materials & Interfaces, 8 (19). pp. 12316-12323. doi:10.1021/acsami.6b02647 ISSN 1944-8244.
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Official URL: http://dx.doi.org/10.1021/acsami.6b02647
Abstract
We report an organo-molybdenumn oxide bronze that enables the fabrication of high-performance silver window electrodes for top-illuminated solution processed organic photovoltaics without complicating the process of device fabrication. This hybrid material combines the function of wide-band-gap interlayer for efficient hole extraction with the role of metal electrode seed layer, enabling the fabrication of highly transparent, low-sheet-resistance silver window electrodes. Additionally it is also processed from ethanol, which ensures orthogonality with a large range of solution processed organic semiconductors. The key organic component is the low cost small molecule 3-mercaptopropionic acid, which (i) promotes metal film formation and imparts robustness at low metal thickness, (ii) reduces the contact resistance at the Ag/molybdenumn oxide bronze interface, (iii) and greatly improves the film forming properties. Silver electrodes with a thickness of 8 nm deposited by simple vacuum evaporation onto this hybrid interlayer have a sheet resistance as low as 9.7 Ohms per square and mean transparency ∼80% over the wavelength range 400–900 nm without the aid of an antireflecting layer, which makes them well-matched to the needs of organic photovoltaics and applicable to perovskite photovoltaics. The application of this hybrid material is demonstrated in two types of top-illuminated organic photovoltaic devices.
Item Type: | Journal Article | ||||||||
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Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry Faculty of Science, Engineering and Medicine > Science > Physics |
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Library of Congress Subject Headings (LCSH): | Photovoltaic cells -- Technology , Manufacturing processes | ||||||||
Journal or Publication Title: | ACS Applied Materials & Interfaces | ||||||||
Publisher: | American Chemical Society | ||||||||
ISSN: | 1944-8244 | ||||||||
Official Date: | 2 May 2016 | ||||||||
Dates: |
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Volume: | 8 | ||||||||
Number: | 19 | ||||||||
Page Range: | pp. 12316-12323 | ||||||||
DOI: | 10.1021/acsami.6b02647 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||
Date of first compliant deposit: | 2 June 2016 | ||||||||
Date of first compliant Open Access: | 11 July 2016 | ||||||||
Funder: | Engineering and Physical Sciences Research Council (EPSRC), Advantage West Midlands (AWM) |
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