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Microstructural analysis and optical characteristics of Cu-doped ZnO thin films prepared by DC magnetron sputtering  

Bunyod Allabergenov ,  Oybek Tursunkulov ,  Amir I. Abidov ,  Sang Yeop Kim ,  Jeong Soon Wook ,  Sungjin Kim 

Kumoh National Institute of Technology (KIT), 61 Daehak-ro, Gumi 730-701, Korea, South

Abstract

The study of the processes interactions near the surfaces and bulk area of functional metal oxide semiconductor materials play important role for nanodevice application. Especially it is necessary to investigate the morphological, optical and physical properties of the synthesized semiconductor oxides modified by different state of dopant elements. Because this is allows making compound system with unique characteristics and novel properties. In this work the pure and Cu-doped zinc oxide (CZO) thin films were deposited on silicon oxide (SiO2/Si) substrate by using direct current reactive magnetron sputtering technique. Synthesized samples were annealed at 500 oC, 700 oC, and 850 oC temperatures under oxygen atmosphere to order good quality crystal structure. Then microstructural and optical properties of the pure and CZO films are systematically investigated by X-ray diffraction, scanning electronic microscopy, and spectrophotometer. The results indicate that Cu-doped ZnO films show stronger preferred orientation toward the c-axis and lattice mismatch, uniform grain size after doping of Cu. The effect of thermal annealing to morphologic and physical parameters of metal oxide thin films was analyzed as functions of the Cu dopant.

 

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Related papers

Presentation: Poster at 17th International Conference on Crystal Growth and Epitaxy - ICCGE-17, General Session 10, by Bunyod Allabergenov
See On-line Journal of 17th International Conference on Crystal Growth and Epitaxy - ICCGE-17

Submitted: 2013-04-15 12:00
Revised:   2013-05-17 10:07