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Surface passivation of semiconducting oxides by self-assembled nanoparticles
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Park, Dae-Sung, Wang, Haiyuan, Vasheghani Farahani, Sepehr, Walker, Marc, Bhatnagar, Akash, Seghier, Djelloul, Choi, Chel-Jong, Kang, Jie-Hun and McConville, C. F. (Chris F.) (2016) Surface passivation of semiconducting oxides by self-assembled nanoparticles. Scientific Reports, 6 . 18449 . doi:10.1038/srep18449 ISSN 2045-2322.
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Official URL: http://dx.doi.org/10.1038/srep18449
Abstract
Physiochemical interactions which occur at the surfaces of oxide materials can significantly impair their performance in many device applications. As a result, surface passivation of oxide materials has been attempted via several deposition methods and with a number of different inert materials. Here, we demonstrate a novel approach to passivate the surface of a versatile semiconducting oxide, zinc oxide (ZnO), evoking a self-assembly methodology. This is achieved via thermodynamic phase transformation, to passivate the surface of ZnO thin films with BeO nanoparticles. Our unique approach involves the use of BexZn1-xO (BZO) alloy as a starting material that ultimately yields the required coverage of secondary phase BeO nanoparticles, and prevents thermally-induced lattice dissociation and defect-mediated chemisorption, which are undesirable features observed at the surface of undoped ZnO. This approach to surface passivation will allow the use of semiconducting oxides in a variety of different electronic applications, while maintaining the inherent properties of the materials.
Item Type: | Journal Article | ||||||||
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Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||
Library of Congress Subject Headings (LCSH): | Optoelectronic devices | ||||||||
Journal or Publication Title: | Scientific Reports | ||||||||
Publisher: | Nature Publishing Group | ||||||||
ISSN: | 2045-2322 | ||||||||
Official Date: | 13 January 2016 | ||||||||
Dates: |
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Volume: | 6 | ||||||||
Number of Pages: | 13 | ||||||||
Article Number: | 18449 | ||||||||
DOI: | 10.1038/srep18449 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||
Date of first compliant deposit: | 8 December 2015 | ||||||||
Date of first compliant Open Access: | 27 January 2016 | ||||||||
Funder: | Birmingham Science City, Advantage West Midlands (AWM), European Regional Development Fund (ERDF), Engineering and Physical Sciences Research Council (EPSRC), University of Warwick Vice Chancellor Scholarship | ||||||||
Grant number: | EP/G004625/1 (EPSRC) |
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