| 在SiO2分子筛内CdS纳米晶的内延生长及特性研究 |
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| 引用本文： | 于广友,蔡强.在SiO2分子筛内CdS纳米晶的内延生长及特性研究[J].发光学报,1997,18(2):182-184. |
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| 作者姓名： | 于广友 蔡强 |
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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. 中国科学院激发态物理开放研究实验室, 长春 130021;3. 吉林大学化学系, 长春 130023 |
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| 摘 要： | 近年来,国际上纳米材料科学及其应用的研究非常活跃.纳米材料的尺寸效应和面效应与体材料相比有特殊的物理和化学特性,尤其是它的界面效应更为明显,因而米材料作为一种新兴的材料,受到了广泛的重视.但到目前为止,纳米材料的制备大采用化学合成的方法如悬胶法、凝胶-溶胶法等,而利用这些方法制备的纳米材料通常一定的尺寸分布,这主要是由于纳米材料在一定温度和时间下的凝结和分解等原因造的1],因而严重地影响了纳米材料在各方面的特性.
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| 关 键 词： | SiO2分子筛 CdS纳米晶 内延生长 |
| 收稿时间： | 1996-08-29 |
THE GROWTH AND CHARACTERISTICS OF CdS NANOCRYSTAL IN THE SiO 2 MOLECULAR SIEVE |
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| Yu Guangyou,Fan Xiwu,Shen Dezhen,Zhang Jiying,Yang Baojun.THE GROWTH AND CHARACTERISTICS OF CdS NANOCRYSTAL IN THE SiO 2 MOLECULAR SIEVE[J].Chinese Journal of Luminescence,1997,18(2):182-184. |
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| Authors: | Yu Guangyou Fan Xiwu Shen Dezhen Zhang Jiying Yang Baojun |
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| Institution: | 1. Changchun Institute of Physics, Chinese Academy of Sciences, Changchun 130021;2. Laboratory of Excited State Processes, Chinese Academy of Sciences, Changchun 130021;3. Department of Chemistry, Jilin University, Changchun 130023 |
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| Abstract: | The CdS nanocrystals were grown in the SiO 2 molecular sieve by physics vapour transport for the first time. The PL spectra were measured at 77 K. The position the width and the intensity of the emission band changed with increasing the growth time. These phenomena showed the formation process of CdS nanocrystal in SiO 2 molecular sieve. The emission band narrowing and confinement effect were observed. |
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| Keywords: | SiO2 molecular sieve CdS nanocrystal topotaxy |
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