退火对CdS/SiO<sub>2</sub>介孔组装体系吸收边的影响

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退火对CdS/SiO₂介孔组装体系吸收边的影响

杨一军, 阚彩侠, 毕会娟, 张立德

文章导航 > 复合材料学报 > 2003 > 20(2): 47-52

杨一军, 阚彩侠, 毕会娟, 等. 退火对CdS/SiO2介孔组装体系吸收边的影响[J]. 复合材料学报, 2003, 20(2): 47-52.

引用本文:

杨一军, 阚彩侠, 毕会娟, 等. 退火对CdS/SiO₂介孔组装体系吸收边的影响[J]. 复合材料学报, 2003, 20(2): 47-52.

YANG Yijun, KAN Caixia, BI Huijuan, et al. ANNEALING EFFECT ON THE ABSORPTION EDGE OF CdS/SiO2 MESOPOROUS ASSEMBLY[J]. Acta Materiae Compositae Sinica, 2003, 20(2): 47-52.

Citation:

YANG Yijun, KAN Caixia, BI Huijuan, et al. ANNEALING EFFECT ON THE ABSORPTION EDGE OF CdS/SiO₂ MESOPOROUS ASSEMBLY[J]. Acta Materiae Compositae Sinica, 2003, 20(2): 47-52.

杨一军, 阚彩侠, 毕会娟, 等. 退火对CdS/SiO2介孔组装体系吸收边的影响[J]. 复合材料学报, 2003, 20(2): 47-52.

引用本文:

杨一军, 阚彩侠, 毕会娟, 等. 退火对CdS/SiO₂介孔组装体系吸收边的影响[J]. 复合材料学报, 2003, 20(2): 47-52.

YANG Yijun, KAN Caixia, BI Huijuan, et al. ANNEALING EFFECT ON THE ABSORPTION EDGE OF CdS/SiO2 MESOPOROUS ASSEMBLY[J]. Acta Materiae Compositae Sinica, 2003, 20(2): 47-52.

Citation:

YANG Yijun, KAN Caixia, BI Huijuan, et al. ANNEALING EFFECT ON THE ABSORPTION EDGE OF CdS/SiO₂ MESOPOROUS ASSEMBLY[J]. Acta Materiae Compositae Sinica, 2003, 20(2): 47-52.

退火对CdS/SiO₂介孔组装体系吸收边的影响

1.
安徽淮北煤炭师范学院物理系,淮北 235000;
2.
中科院固体物理研究所, 安徽合肥 230031

基金项目: 安徽省教育厅自然科学研究项目(批准号:2001kj201ZC)

作者简介:
杨一军(1956-),男,副教授,研究方向:凝聚态物理。

通讯作者:
杨一军,E-mail: yangyijun@hbcnc.edu.cn

中图分类号: TB383
计量
- 文章访问数: 1161
- PDF下载量: 840
- 被引次数: 0
出版历程
- 收稿日期: 2002-04-03
- 修回日期: 2002-06-24
- 刊出日期: 2003-04-15

ANNEALING EFFECT ON THE ABSORPTION EDGE OF CdS/SiO₂ MESOPOROUS ASSEMBLY

1.
Department of Physics, Huaibei Coal Teacher's College, Huaibei 235000,China;
2.
Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031,China

摘要: 本文作者通过溶胶-凝胶法获得块材CdS纳米颗粒/介孔SiO₂组装体系(CdS/SiO₂)块体样品,室温下的拉曼谱中观察到CdS的两个特征峰;在氮气和空气气氛中退火处理后,发现吸收边位置随复合量和退火温度不同而移动。经计算,CdS颗粒粒径的理论值与其自由激子半径相当,说明吸收边的移动起因于量子限域效应。
- CdS纳米颗粒 /
- 介孔组装体系 /
- 吸收边
Abstract: Monolithic mesoporous CdS/SiO₂ assembly systems were obtained by sol-gel technique. The characteristic peaks of CdS in Raman spectrum were observed at room temperature. The as-prepared samples were annealed under air and nitrogen, respectively. It is observed that the absorption edge of the CdS/SiO₂ shifts in comparison with that of the bulk CdS as the annealing temperature change as well as the loading of CdS in SiO₂. The calculating result showed that the size of CdS particles in the mesoporous SiO₂ is similar to its exciton radius on quantity. The shift of the absorption edge was attributed to the quantum size effect.
- CdS nanoparticles /
- mesoporous assembly /
- absorption edge

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