| 功能性CdTe纳米晶的合成及自组装膜的发光性质 |
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| 引用本文： | 郭应臣,贾凡,谢文思,关晓艳.功能性CdTe纳米晶的合成及自组装膜的发光性质[J].光谱实验室,2009,26(5):1082-1086. |
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| 作者姓名： | 郭应臣 贾凡 谢文思 关晓艳 |
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| 作者单位： | 南阳师范学院化学与制药工程学院河南省南阳市卧龙区卧龙路1638号,473061 |
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| 基金项目： | 河南省自科基金资助项目，河南省教育厅基金资助项目，南阳师范学院STP项目 |
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| 摘 要： | 以巯基乙酸为稳定剂和修饰剂,采用湿化学法合成了功能性CdTe纳米晶;用X射线衍射（XRD）、选区电子衍射（SAED）和高分辨透射电镜（HRTEM）表征其粒度和形貌,制得的CdTe为立方单晶,近似呈球形,分散性较好,粒径约40-70nm;通过CdTe纳米晶与阳离子聚电解质聚二烯丙基二甲基氯化铵（PDDA）之间的静电相互作用,在石英基片表面通过静电自组装方法制备了多层CdTe纳米晶薄膜,以荧光分光光度计、UV-Vis和场发射扫描电子显微镜（SEM）测试手段对所得的CdTe纳米晶薄膜进行了表征;结果表明：所得CdTe-PDDA复合膜组装有序,分布均匀,该复合膜的荧光强度随着组装层数的增加而呈线性增强,具有良好的光致发光性,在554nm附近有绿色荧光发射。
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| 关 键 词： | 功能性 CdTe纳米晶 自组装膜 光致发光 |
Preparation and Optical Properties of Functional ized CdTe Nanocrystals and Self-Assembled Films |
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| Guo Ying-Chen,JIA Fan,XIE Wen-Si,GUAN Xiao-Yan.Preparation and Optical Properties of Functional ized CdTe Nanocrystals and Self-Assembled Films[J].Chinese Journal of Spectroscopy Laboratory,2009,26(5):1082-1086. |
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| Authors: | Guo Ying-Chen JIA Fan XIE Wen-Si GUAN Xiao-Yan |
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| Institution: | College of Chemistry and Pharmacy Engineering;Nanyang Normal University;Nanyang;Henan 473061;P.R.China |
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| Abstract: | CdTe,a functionalized nanocrystal was synthesized with thioglycollic acid as a stabilizer by a wet chemical method.The particle size and morphology were characterized by XRD, SAED and high resolution transmission electron microscope(HRTEM).The prepared CdTe nanocrystal was globular shape with the particle diameter between 40nm to 70nm.The related CdTe-CH_2COO~-/PDDA complex pellicle was synthesized by static self-assembled.The film forming process was observed by UV-Vis absorption spectra,fluorescence emiss... |
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| Keywords: | Functionalized Performance CdTe Nanocrystal Self-Assembled Monolayer Photoluminescence |
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