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Photoluminescence from porous textured ZnO films grown by chemical bath deposition
- Issue Date
- Feb-2016
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Photoluminescence; ZnO film
- Citation
- JOURNAL OF LUMINESCENCE, v.170, pp 168 - 173
- Pages
- 6
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- JOURNAL OF LUMINESCENCE
- Volume
- 170
- Start Page
- 168
- End Page
- 173
- ISSN
- 0022-2313
1872-7883
- Abstract
- Porous textured ZnO films have been fabricated using the low temperature bath chemical deposition method. The photoluminescence (PL) spectra of the ZnO films show a broad emission band peaked at similar to 400 nm. The PL exhibits sensitivity to the emission recording conditions. A decrease in temperature leads to separation of the PL into the UV and violet emission bands; at 10 K they are located at 368.4 and 412 nm, respectively. The observed violet emission is attributed to zinc vacancy related defects. The observed sensitivity of the emission to the recording conditions is due to oxygen desorption processes and variations in the width of a depletion region on the porous textured ZnO film surface. (C) 2015 Elsevier B.V. All rights reserved.
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Related Researcher
- Jeon, Hee Chang
- College of Engineering