Title: Investigation on ultraviolet photoconductivity in p-type ZnO thin films
Authors: Zeng, Yujia
Ye, Z ×
Lu, Y
Lu, J
Xu, W
Zhao, B
Che, Y #
Issue Date: Jun-2007
Publisher: Elsevier
Series Title: Chemical Physics Letters vol:441 issue:1-3 pages:115-118
Abstract: The authors report on comparative study on ultraviolet (UV) photoconductivity of p-type ZnO:N films and n-type ZnO epilayer. As compared with the ZnO epilayer, the ZnO:N films show much higher photoconductivity but with faster decay. Surface adsorption of C and O, as identified by X-ray photoelectron spectroscopy, is believed to be a major contribution to the UV photoconductivity. The surface adsorption and photodesorption process, combined with a competition between holes and electrons, in p-type ZnO:N, is proposed tentatively, providing qualitative agreement with the observed behaviors. (C) 2007 Elsevier B.V. All rights reserved.
ISSN: 0009-2614
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Non-KU Leuven Association publications
× corresponding author
# (joint) last author

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