| Cd1-xZnxS/SiO2介孔组装体系的光学性质 |
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| 引用本文： | 杨一军,刘强春,刘红艳,从守民,李村成,王红艳,戴建明.Cd1-xZnxS/SiO2介孔组装体系的光学性质[J].吉林大学学报(理学版),2009,47(5):1061-1064. |
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| 作者姓名： | 杨一军 刘强春 刘红艳 从守民 李村成 王红艳 戴建明 |
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| 作者单位： | 1. 淮北煤炭师范学院 物理系, 安徽 淮北 235000,2. 中国科学院 固体物理研究所, 合肥 230031 |
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| 基金项目： | 国家自然科学基金，安徽省自然科学基金，安徽省科技创新团队项目基金，安徽省教育厅重点资助项目基金 |
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| 摘 要： | 利用sol\|gel法得到SiO2介孔固体, 浸泡热分解后获得Zn不同质量分数的Cd1-xZnxS/SiO2介孔组装体. 吸收光谱表明, 随着x的增加, 吸收边向短波方向移动, 这是由于Zn离子进入CdS取代了Cd离子, 使Cd1-xZnxS能隙增大所致. 由于量子尺寸效应, 荧光光谱中发光峰的宽化现象较明显, 同时发光强度随x增大而增强, 这是由于Zn离子使α相比例减少而有利于发光所致.
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| 关 键 词： | Cd1-xZnxS/SiO2 介孔组装体 吸收边 荧光 |
| 收稿时间： | 2008-09-26 |
Optical Properties of Cd_(1-x)Zn_xS/SiO_2 Assembly Systems |
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| YANG Yi-jun,LIU Qiang-chun,LIU Hong-yan,CONG Shou-min,LI Cun-cheng,WANG Hong-yan,DAI Jian-ming.Optical Properties of Cd_(1-x)Zn_xS/SiO_2 Assembly Systems[J].Journal of Jilin University: Sci Ed,2009,47(5):1061-1064. |
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| Authors: | YANG Yi-jun LIU Qiang-chun LIU Hong-yan CONG Shou-min LI Cun-cheng WANG Hong-yan DAI Jian-ming |
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| Institution: | 1. Department of Physics, Huaibei Coal Teacher’s College, Huaibei 235000, Anhui Province, China;2. Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China |
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| Abstract: | Monolithic mesoporous silica was prepared by a sol-gel method from which the Cd1-xZnxS/SiO2 assembly systems with different doping concentrations of Zn ions were obtained by thermal reaction after immersing and drying.The measurements of optical absorption indicate that the optical absorption edge shifts to a short wavelength with increasing the concentration of Zn ion.It is suggested that the energy gap of CdS is enlarged with the Cd ion substituted by the Zn ion.The photoluminescence(PL) emission band is ... |
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| Keywords: | Cd1-xZnxS/SiO2 |
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