用巯基丙酸(MPA)作稳定剂,在氮气保护下,水相中合成了CdTe半导体纳米量子点.通过荧光光谱(PL)分析、透射电子显微镜(TEM)和X线粉末衍射(XRD)光谱分析对产物进行了表征.实验结果表明:反应时间、温度、pH值、Te2-和Cd2+的物质的量比及巯基丙酸与镉离子的比例,对CdTe量子点的粒径大小、粒径的分布和粒子的生长速度均有很大影响.本实验对这些影响因素进行了系统的研究.
[1] 杨卫海, 李万万, 孙康, YANG Wei-Hai, LI Wan-Wan, SUN Kang. 水热法合成巯基乙胺稳定的CdTe量子点 [J]. 高等学校化学学报 2008.doi:10.3321/j.issn:0251-0790.2008.04.005
[2] 梁佳然, 钟文英, 于俊生, LIANG Jia-Ran, ZHONG Wen-Ying, YU Jun-Sheng. 高质量CdTe量子点的水相快速合成 [J]. 高等学校化学学报 2009.doi:10.3321/j.issn:0251-0790.2009.01.004
[3] 孙剑洁, 杨娟, 许世超, 张纪梅, Sun Jianjie, Yang Juan, Xu Shichao, Zhang Jimei. CdTe量子点的水相制备 [J]. 化工时刊 2009.doi:10.3969/j.issn.1002-154X.2009.04.003
[4] Chan, WC, Nie, S. Quantum dot bioconjugates for ultrasensitive nonisotopic detection (see comments) [J]. Science 1998, 5385(5385).
[5] TSUTSUI T. Applied physics:A light-emitting sandwich filling [J]. Nature 2002, 420.
[6] DUAN Junling, SONG Lianxiang, ZHAN Jinhua. One-pot synthesis of highly luminescent cdTe quantum dots by microwave irradiation reduction and their Hg2+-Sensitive properties [J]. Nano Research 2009, 2.
[7] XIA Yunsheng, ZHU Changqing. Use of surface-modified CdTe quantum dots as fluorescent probes in sensing mercury (Ⅱ) [J]. TALANTA 2008, 75.
[8] XIA Yunsheng, ZHU Changqing. Two distinct photoluminescence responses of CdTe quantum dots to Ag(Ⅰ) [J]. Journal of Luminescence 2008, 128.
[9] PENG ZA, PENG Xiaogang. Formation of high-quality CdTe, CdSe, and CdS QDs using CdO as precursor [J]. Journal of the American Chemical Society 2001, 123.
[10] TALAPIN D V, HAUBOLD S, ROGACH A L. A novel organometallic synthesis of highly luminescent CdTe QDs [J]. Journal of Physical Chemistry B 2001, 105.
[11] Yu WW., Wang YA., Peng XG.. Formation and stability of size-, shape-, and structure-controlled CdTe nanocrystals: Ligand effects on monomers and nanocrystals [J]. Chemistry of Materials 2003, 22(22).
[12] GAPONIK N, TALAPIN D V, ROGACH A L. Thiol-capping of CdTe QDs:An alternative to organometallic synthetic routes [J]. Journal of Physical Chemistry B 2002, 106.
[13] PENG Xiaogang, WICKHAM J, Alivisatos A P. Kinetics of Ⅱ-Ⅵ and Ⅲ-Ⅴ colloidal semiconductor nanocrystal growth:Focusing of size distributions [J]. Journal of the American Chemical Society 1998, 120.
[14] 张立德, 牟季美. 纳米材料和纳米结构 [M]. 北京:科学出版社 2002.
[15] Jia Guo, Wuli Yang, Changchun Wang. Systematic Study of the Photoluminescence Dependence of Thiol-Capped CdTe Nanocrystals on the Reaction Conditions [J]. The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical 2005, 37(37).
