Cation-Mediated Effects on Zinc Oxide Films Formed by Chemical Bath Deposition
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概要
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Crystalline ZnO films with a densely packed morphology were grown on a silicon oxide (SiOx) glass substrate by chemical bath deposition (CBD) in an aqueous-solution bath containing magnesium nitrate [Mg(NO3)2$\cdot$2H2O] used as a cation-mediation compound, zinc nitrate [Zn(NO3)2$\cdot$6H2O], and dimethylamineborane (DMAB) at 65 °C. Grains of ZnO films grown in nonmediated solution preferentially grew on the (002) plane. In the cation-mediated-solution bath, the films were compressed into a compact morphology by the increased tendency for films to grow in the (002) prefer orientation. The crystalline ZnO film exhibits good optical transmittance of over 90%. Additionally, the direct band-gap value was 3.22 eV, which is less than 3.38 eV, which was obtained using a nonmediated-solution bath. This was due to the lattice constant variation caused by cation mediation.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2007-07-15
著者
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Tsay Chien-yie
Department Of Materials Science And Engineering Feng Chia University
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Chen Chia-fu
Department Of Materials Science And Engineering National Chiao Tung University
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Chen Chia-Fu
Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan, R.O.C.
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Cheng Hua-Chi
Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan, R.O.C.
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Tsay Chien-Yie
Department of Materials Science and Engineering, Feng Chia University, Taichung 31040, Taiwan, R.O.C.
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