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Proceedings Paper

Violet and blue photoluminescence emitted from ZnO films deposited by rf magnetron sputtering
Author(s): Deheng Zhang; Z. Y. Xue; Qingpu Wang; Jin Ma
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Paper Abstract

A strong photoluminescence (PL) band has been observed at room temperature from ZnO films grown by r.f. sputtering when excited with 340-398 nm light. The PL spectrum consists of three bands with wavelengths 420 nm, 446 nm, and 490 nm, respectivley. The violet peak originates from the electron transition from the shallow level of interface trap at the grain boundaries to the valence band, the blue peak is due to the electron transition from the shallow donor level of oxygen vacancies band and the green emission is attributed to the electron transition from ionized oxygen vacancies to valence band.

Paper Details

Date Published: 17 September 2002
PDF: 4 pages
Proc. SPIE 4918, Materials, Devices, and Systems for Display and Lighting, (17 September 2002); doi: 10.1117/12.483108
Show Author Affiliations
Deheng Zhang, Shandong Univ. (China)
Z. Y. Xue, Shandong Univ. (China)
Qingpu Wang, Shandong Univ. (China)
Jin Ma, Shandong Univ. (China)

Published in SPIE Proceedings Vol. 4918:
Materials, Devices, and Systems for Display and Lighting
Fuxi Gan; Ming Hsien Wu; Lionel C. Kimerling, Editor(s)

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