| Characteristics of Schottky Barrier Junction Based on Hexagonal Microtube ZnO |
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| 引用本文： | GAOHui LIYan YANGLi-ping DENGHong. Characteristics of Schottky Barrier Junction Based on Hexagonal Microtube ZnO[J]. 半导体光子学与技术, 2005, 11(2): 85-88,106 |
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| 作者姓名： | GAOHui LIYan YANGLi-ping DENGHong |
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| 作者单位： | （SchoolofMicroelectronicsandSolidStateElectronics,UniversityofElectronicScienceandTechnologyofChina,Chengdu610054,CHN |
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展计划(973计划) |
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| 摘 要： | Hexagonal microtube ZnO was firstly grown on single crystal p-Si (111) substrates by hydrothermal method, and fabricated Ag/n-ZnO and Au/n-ZnO Schottky junction. Schottky effective barrier heights were calculated by I-V measurement. It is confirmed that the presence of a large amount of surface states related possibly to lattice imperfections existed near the surface leads to the pinning of the surface Fermi level at 0.35 eV below the conduction-band edge. Then the fabricated Schottky barrier junctions are evaluated for their use as UV photodetectors.
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| 关 键 词： | ZnO 肖特基势垒 势垒高度 表面态 频谱响应度 |
| 收稿时间： | 2004-09-23 |
Characteristics of Schottky Barrier Junction Based on Hexagonal Microtube ZnO |
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| GAO Hui,LI Yan,YANG Li-ping,DENG Hong. Characteristics of Schottky Barrier Junction Based on Hexagonal Microtube ZnO[J]. Semiconductor Photonics and Technology, 2005, 11(2): 85-88,106 |
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| Authors: | GAO Hui LI Yan YANG Li-ping DENG Hong |
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| Abstract: | Hexagonal microtube ZnO was firstly grown on single crystal p-Si (111) substrates by hydrothermal method, and fabricated Ag/n-ZnO and Au/n-ZnO Schottky junction. Schottky effective barrier heights were calculated by I-V measurement. It is confirmed that the presence of a large amount of surface states related possibly to lattice imperfections existed near the surface leads to the pinning of the surface Fermi level at 0.35 eV below the conduction-band edge. Then the fabricated Schottky barrier junctions are evaluated for their use as UV photodetectors. |
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| Keywords: | ZnO Schottky barrier junction Characteristic Barrier height Surface state UV photodetector Spectral responsivity |
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