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- Komiyama Takao
- Department of Electronics and Information Systems, Akita Prefectureal University, Japan Graduate School of Engineering, Iwate University, Japan
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- Iwataki Kouji
- Department of Electronics and Information Systems, Akita Prefectureal University, Japan
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- Yamaguchi Hiroyuki
- Department of Electronics and Information Systems, Akita Prefectureal University, Japan
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- Aoyama Takashi
- Department of Electronics and Information Systems, Akita Prefectureal University, Japan
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- Kashiwaba Yasube
- Center for Regional Collaboration in Research and Education, Iwate University, Japan
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- Taniguchi Hiroshi
- Department of Welfare Engineering, Iwate University, Japan
抄録
The effects of the PLD bias voltage technique on the ZnO film quality have been investigated. The ZnO films were grown on sapphire substrates under bias voltages and oxygen atmosphere conditions. A molybdenum mesh electrode is set between the substrate and the target. The bias voltages and the oxygen pressures were changed between ±500 V and between 10-2 and 10-6 Torr, respectively. Photoluminescence measurement showed that the defect density had minimum values when the bias voltage was about +200V and the oxygen pressure was 10-2 Torr. The optimum bias voltages decrease from +400 to +200 V by using oxygen atmospheres. Because the defect densities are decreased significantly by applying bias voltages under the optimized oxygen condition, the reasons of the improved ZnO film quality comes from not only the compensation of the decrease in the oxygen ratio in the film but also the decrease of the film damages caused by the high energy particles in the plume. [DOI: 10.1380/ejssnt.2009.294]
収録刊行物
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- e-Journal of Surface Science and Nanotechnology
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e-Journal of Surface Science and Nanotechnology 7 294-297, 2009
公益社団法人 日本表面真空学会
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詳細情報 詳細情報について
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- CRID
- 1390001205187272704
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- NII論文ID
- 130004934027
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- ISSN
- 13480391
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可