Investigations of ZnO thin films deposited by a reactive pulsed laser ablation |
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| Authors: | J. B. Cui Y. C. Soo H. Kandel M. A. Thomas T. P. Chen C. P. Daghlian |
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| Affiliation: | (1) Department of Physics and Astronomy, University of Arkansas at Little Rock, Little Rock, AR 72204, USA;(2) E. M. Facilities, Dartmouth College, Hanover, H 03755, USA |
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| Abstract: | Highly transparent ZnO thin films were deposited at different substrate temperatures by pulsed laser deposition in an oxygen atmosphere. The thin films were characterized by various techniques including X-ray diffraction, scanning electron microscopy, optical absorption, and photoluminescence. We demonstrated that oriented wurtzite ZnO thin films could be deposited at room temperature using a high purity zinc target. Variable temperature photoluminescence revealed new characteristics in the band edge emission. The underlying mechanism for the observed phenomena was also discussed. |
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| Keywords: | thin films pulsed laser deposition optical property zinc oxide |
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