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| H2O2催化多孔硅的光致发光研究 | |
| 引用本文： | 杜远东,钱萍,晁明举. H2O2催化多孔硅的光致发光研究[J]. 半导体光电, 2003, 24(6): 454-456 |
| 作者姓名： | 杜远东 钱萍 晁明举 |
| 作者单位： | 1. 周口师范学院,物理与电子科学系,河南,周口,466000 2. 周口师范学院,物理与电子科学系,河南,周口,466000;北京科技大学,北京,100083 3. 周口师范学院,物理与电子科学系,河南,周口,466000;郑州大学,物理工程学院,河南,郑州,450052 |
| 基金项目： | 河南省教育厅自然科学基金;20011400019; |
| 摘 要： | 采用H2O2催化的电化学法制备多孔硅,用原子力显微镜观察了样品的形貌,并测量了在不同电流密度下制得的多孔硅和在不同氧化时间高温氧化的多孔硅的光致发光谱。实验结果表明,采用H2O2催化的电化学法制备的多孔硅与常规电化学法制备的多孔硅相比,其表面更平整、细密、均匀。随着电流密度和氧化时间的增加,多孔硅的发光谱峰位蓝移。此实验结果符合量子限制模型。 |
| 关 键 词： | 多孔硅 光致发光 H2O2 |
| 文章编号： | 1001-5868(2003)06-0454-03 |
| 修稿时间： | 2003-04-24 |
Investigation on Photoluminescence of Porous Silicon by H2O2 Catalysis |
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| DU Yuan-dong. Investigation on Photoluminescence of Porous Silicon by H2O2 Catalysis[J]. Semiconductor Optoelectronics, 2003, 24(6): 454-456 | |
| Authors: | DU Yuan-dong |
| Affiliation: | DU Yuan-dong~ |
| Abstract: | Porous silicon (PS ) was fabricated using electrochemical technique by H_(2)O_(2) catalysis. The morphology of the PS is observed with atomic force microscopy. And the photoluminescence (PL) of the PS prepared at various electrical current or at different oxidation time is investigated. The results indicate that the structure of the PS produced by H_(2)O_(2) catalysis is better and more uniform than that of the PS produced using traditional electrochemistry. It is also observed that the photoluminescence will be blue shifted when the current density and oxidation time increase. The experiment result is in good agreement with the quantum confinement model. |
| Keywords: | porous silicon photoluminescence H_2O_2 |
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