Effects of cooling rate and post-heat treatment on properties of ZnO thin films deposited by sol-gel method

Title
Effects of cooling rate and post-heat treatment on properties of ZnO thin films deposited by sol-gel method
Author(s)
김종수Min Su Kim[Min Su Kim]Kwang Gug Yim[Kwang Gug Yim]Dong-Yul Lee[Dong-Yul Lee]Jin Soo Kim[Jin Soo Kim]Jeong-Sik Son[Jeong-Sik Son]Jae-Young Leem[Jae-Young Leem]
Keywords
OPTICAL-PROPERTIES; STRUCTURAL-PROPERTIES; ZINC-OXIDE; GAS SENSOR; TEMPERATURE; GROWTH; PHOTOLUMINESCENCE; ETHANOL; SURFACE; LAYERS
Issue Date
201108
Publisher
ELSEVIER SCIENCE BV
Citation
APPLIED SURFACE SCIENCE, v.257, no.21, pp.9019 - 9023
Abstract
Sol-gel spin-coated ZnO thin films are cooled with different rates after the pre-heat treatment. Atomic force microscopy (AFM), X-ray diffraction (XRD), Raman, and photoluminescence (PL) were carried out to investigate the effects of the cooling rate during pre-heat treatment on structural and optical properties of the ZnO thin films. The ZnO thin films cooled slowly exhibit mountain chain structure while the ones cooled rapidly have smooth surface. The ZnO thin films cooled rapidly have higher c-axis orientation compared to the ones cooled slowly. The narrower and the higher near-band-edge emission (NBE) peaks are observed in the ZnO thin films cooled rapidly. (C) 2011 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/24776http://dx.doi.org/10.1016/j.apsusc.2011.05.092
ISSN
0169-4332
Appears in Collections:
이과대학 > 물리학과 > Articles
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