| Cu2O半导体超微粒子的光学性质 |
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| 引用本文： | 赵家龙,邹炳锁.Cu2O半导体超微粒子的光学性质[J].发光学报,1993,14(2):154-158. |
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| 作者姓名： | 赵家龙 邹炳锁 |
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| 作者单位： | 1. 中国科学院长春物理研究所, 长春 130021;2. 吉林大学化学系, 长春 130021 |
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| 基金项目： | 国家自然科学基金;中国科学院长春物理研究所激发态物理开放实验室基金 |
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| 摘 要： | 本文研究了表面修饰的Cu2O半导体超微粒子的光学性质.在Cu2O超微粒子中未观察到显著的量子尺寸效应,但测量到很强的宽带光致发光,且随着激发波长变短,其发光带的峰位蓝移,发光带宽度增加.最后,分析了Cu2O超微粒子的宽带发光机制,并讨论了热处理对超微粒子的发光强度的影响.
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| 关 键 词： | Cu2O半导体超微粒子 光致发光 激子 |
| 收稿时间： | 1992-05-13 |
OPTICAL PROPERTIES OF Cu_2O SEMICONDUCTOR ULTRAFINE PARTICLES |
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| Zhao Jialong Zhou Fangce Jin ChunmingZhang Jisen Gao Ying Huang Shihua Yu Jiaqi.OPTICAL PROPERTIES OF Cu_2O SEMICONDUCTOR ULTRAFINE PARTICLES[J].Chinese Journal of Luminescence,1993,14(2):154-158. |
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| Authors: | Zhao Jialong Zhou Fangce Jin ChunmingZhang Jisen Gao Ying Huang Shihua Yu Jiaqi |
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| Institution: | 1. Changchun Institute of Physics, Academia Sinica, Changchuu 130021;2. partment of Chemistry, Jilin University, Changchun 130023 |
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| Abstract: | Optical properties of Cu2O semiconductor ultrafine particles with surface modification were investigated by measuring the absorption, photoluminescence and excitation spectra at room temperature. No obvious quantum size effect was observed in the Cu2O ultrafine particles, but very strong and broad photoluminescence bands were observed. The peak positions of the photoluminescence bands were shifted to short wavelength and the widthes of the bands were increased with decreasing excitation wavelenth. Finally, we analyze the mechanisms of the broad photol-uminescenee bands in Cu2O ultafine particles and discuss the influence of heat treatment on the intensity of the luminscence of the ultrafine particles. |
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| Keywords: | Cu2O semiconductor ultrafine particles photoluminescence exciton |
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