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Selective deposition of silver and copper films by condensation coefficient modulation
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Varagnolo, Silvia, Lee, Jaemin, Amari, Houari and Hatton, Ross A. (2020) Selective deposition of silver and copper films by condensation coefficient modulation. Materials Horizons, 7 (1). pp. 143-148. doi:10.1039/C9MH00842J ISSN 2051-6347.
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Official URL: http://doi.org/10.1039/C9MH00842J
Abstract
Whilst copper and silver are the conductors of choice for myriad current and emerging applications, patterning these metals is a slow and costly process. We report the remarkable finding that an extremely thin (10 nm) printed layer of specific organofluorine compounds enables selective deposition of copper and silver vapour, with metal condensing only where the organofluorine layer is not. This unconventional approach is fast, inexpensive, avoids metal waste and the use of harmful chemical etchants, and leaves the metal surface uncontaminated. We have used this approach to fabricate thin films of these metals with 6 million apertures cm-2 and grids of 1 µm lines, through to 10 cm diameter apertures. We have also fabricated semi-transparent organic solar cells in which the top silver electrode is patterned with a dense array of 2 µm diameter apertures, which cannot be achieved by any other scalable means directly on an organic electronic device.
Item Type: | Journal Article | ||||||||
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Subjects: | Q Science > QC Physics Q Science > QD Chemistry |
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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): | Electrochemistry, Electrodes, Alkali metal , Solar cells, Organic electronics, Electronic polymers | ||||||||
Journal or Publication Title: | Materials Horizons | ||||||||
Publisher: | Royal Society of Chemistry | ||||||||
ISSN: | 2051-6347 | ||||||||
Official Date: | 1 January 2020 | ||||||||
Dates: |
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Volume: | 7 | ||||||||
Number: | 1 | ||||||||
Page Range: | pp. 143-148 | ||||||||
DOI: | 10.1039/C9MH00842J | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||
Date of first compliant deposit: | 20 September 2019 | ||||||||
Date of first compliant Open Access: | 20 September 2019 | ||||||||
Funder: | EPSRC | ||||||||
Grant number: | EP/N009096/1 | ||||||||
RIOXX Funder/Project Grant: |
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Open Access Version: |
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