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Surface transfer doping of diamond by MoO3 : a combined spectroscopic and Hall measurement study
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Russell, Stephen, Cao, Liang, Qi, Dongchen, Tallaire, Alexandre, Crawford, Kevin G., Wee, Andrew T. S. and Moran, David A. J. (2013) Surface transfer doping of diamond by MoO3 : a combined spectroscopic and Hall measurement study. Applied Physics Letters, Volume 103 (Number 20). Article number 202112. doi:10.1063/1.4832455 ISSN 0003-6951.
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Official URL: http://dx.doi.org/10.1063/1.4832455
Abstract
Surface transfer doping of diamond has been demonstrated using MoO3 as a surface electron acceptor material. Synchrotron-based high resolution photoemission spectroscopy reveals that electrons are transferred from the diamond surface to MoO3, leading to the formation of a sub-surface quasi 2-dimensional hole gas within the diamond. Ex-situ electrical characterization demonstrated an increase in hole carrier concentration from 1.00 × 1013/cm2 for the air-exposed hydrogen-terminated diamond surface to 2.16 × 1013/cm2 following MoO3 deposition. This demonstrates the potential to improve the stability and performance of hydrogen-terminated diamond electronic devices through the incorporation of high electron affinity transition metal oxides.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
Journal or Publication Title: | Applied Physics Letters | ||||
Publisher: | American Institute of Physics | ||||
ISSN: | 0003-6951 | ||||
Official Date: | 14 November 2013 | ||||
Dates: |
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Volume: | Volume 103 | ||||
Number: | Number 20 | ||||
Article Number: | Article number 202112 | ||||
DOI: | 10.1063/1.4832455 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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