| ZnO/PS异质结的光学和电学性质 |
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| 引用本文： | 赵波,李清山,张宁,陈达,郑学刚.ZnO/PS异质结的光学和电学性质[J].半导体学报,2006,27(7):1217-1220. |
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| 作者姓名： | 赵波 李清山 张宁 陈达 郑学刚 |
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| 作者单位： | 曲阜师范大学物理工程学院，曲阜 273165;曲阜师范大学物理工程学院，曲阜 273165;曲阜师范大学物理工程学院，曲阜 273165;曲阜师范大学物理工程学院，曲阜 273165;曲阜师范大学物理工程学院，曲阜 273165 |
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| 摘 要： | 用脉冲激光沉积的方法在多孔硅(PS)衬底上沉积ZnO薄膜,在室温下测量了ZnO/PS异质结的结构及光学和电学性质.X射线衍射仪和扫描电子显微镜测量表明,制备的ZnO薄膜具有一定的c轴取向,但薄膜存在较多缺陷.光致发光谱显示,PS的发光与ZnO的发光相叠加,呈现白光发射.对异质结I-V特性曲线的测量表明,异质结呈现出与普通二极管不同的整流特性,其反向电流不饱和,据此提出了能带模型.
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| 关 键 词： | 白光发射 多孔硅 ZnO光致发光 能带模型 异质结 光学和电学性质 Electrical Properties Optical 能带模型 反向电流 的整流特性 普通二极管 特性曲线 光发射 叠加 光致发光谱 显示 缺陷 存在 取向 测量表 电子显微镜 扫描 衍射仪 |
| 文章编号： | 0253-4177(2006)07-1217-04 |
| 收稿时间： | 12 4 2005 12:00AM |
| 修稿时间： | 01 19 2006 12:00AM |
Optical and Electrical Properties of ZnO/PS Heterostructure |
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| Zhao Bo,Li Qingshan,Zhang Ning,Chen Da and Zheng Xuegang.Optical and Electrical Properties of ZnO/PS Heterostructure[J].Chinese Journal of Semiconductors,2006,27(7):1217-1220. |
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| Authors: | Zhao Bo Li Qingshan Zhang Ning Chen Da and Zheng Xuegang |
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| Affiliation: | Department of Physics,Qufu Normal University,Qufu 273165,China;Department of Physics,Qufu Normal University,Qufu 273165,China;Department of Physics,Qufu Normal University,Qufu 273165,China;Department of Physics,Qufu Normal University,Qufu 273165,China;Department of Physics,Qufu Normal University,Qufu 273165,China |
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| Abstract: | The optical and electrical properties of ZnO/porous Si (PS) heterostructure are studied.The PS sample is formed by the anodization of a single-crystal Si wafer.ZnO films are then deposited on the PS substrate by pulsed laser deposition.White light formed by combining the red emission from the PS layers with the blue-green emission from the ZnO films is obtained.Due to the roughness of the PS surface,some cracks appear in the ZnO films,which can be seen from the SEM spectra.The I-V characteristics of the ZnO/PS heterostructure are different from those of the common diode,whose reverse current is not saturated.Based on the I-V characteristics,an energy band diagram is proposed. |
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| Keywords: | white light emission porous silicon ZnO photoluminescence energy band diagram |
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