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Analysis of surface, subsurface, and bulk hydrogen in ZnO using nuclear reaction analysis

  • Hydrogen concentrations in ZnO single crystals exposing different surfaces have been determined to be in the range of (0.02–0.04) at.% with an error of ±0.01 at.% using nuclear reaction analysis. In the subsurface region, the hydrogen concentration has been determined to be higher by up to a factor of 10. In contrast to the hydrogen in the bulk, part of the subsurface hydrogen is less strongly bound, can be removed by heating to 550°C, and reaccommodated by loading with atomic hydrogen. By exposing the ZnO(10-10) surface to water above room temperature and to atomic hydrogen, respectively, hydroxylation with the same coverage of hydrogen is observed.

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Author:Franziska Traeger, Max Kauer, Christof Wöll, Detlef Rogalla, Hans-Werner Becker
Parent Title (English):Physical Review B
Document Type:Article
Date of Publication (online):2021/08/20
Year of first Publication:2011
Publishing Institution:Westfälische Hochschule Gelsenkirchen Bocholt Recklinghausen
Release Date:2021/08/20
First Page:075462
Last Page:075462
Departments / faculties:Fachbereiche / Wirtschaftsingenieurwesen
Licence (German):License LogoEs gilt das Urheberrechtsgesetz

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