Post-growth CdCl2 treatment on CdTe thin films grown on graphene layers using a close-spaced sublimation method
- Authors
- Jung, Younghun; Yang, Gwangseok; Chun, Seungju; Kim, Donghwan; Kim, Jihyun
- Issue Date
- 5-5월-2014
- Publisher
- OPTICAL SOC AMER
- Citation
- OPTICS EXPRESS, v.22, no.9, pp.A986 - A991
- Indexed
- SCIE
SCOPUS
- Journal Title
- OPTICS EXPRESS
- Volume
- 22
- Number
- 9
- Start Page
- A986
- End Page
- A991
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/98539
- DOI
- 10.1364/OE.22.00A986
- ISSN
- 1094-4087
- Abstract
- We investigated the morphological, structural and optical properties of CdCl2-treated cadmium telluride (CdTe) thin films deposited on defective graphene using a close-spaced sublimation (CSS) system. Heat treatment in the presence of CdCl2 caused recrystallization of CSS-grown CdTe over the as-deposited structures. The preferential (111) orientation of as-deposited CdTe films was randomized after post-growth CdCl2 treatment. New small grains (bumps) on the surface of CdCl2-treated CdTe films were ascribed to nucleation of the CdTe grains during the CdCl2 treatment. The properties of as-deposited and CdCl2-treated CdTe films were characterized by room temperature micro-photoluminescence, micro-Raman spectroscopy, scanning electron microscopy, and X-ray diffraction analysis. Our results are useful to demonstrate a substrate configuration CdTe thin film solar cells. (C)2014 Optical Society of America
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Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
- College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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