| 水热法合成N-乙酰-L-半胱氨酸稳定的Cd_xZn_（1-x）Se合金量子点 |
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| 引用本文： | 顾乐民,胡朗,姚爱华,王德平. 水热法合成N-乙酰-L-半胱氨酸稳定的Cd_xZn_（1-x）Se合金量子点[J]. 功能材料, 2011, 42(10) |
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| 作者姓名： | 顾乐民 胡朗 姚爱华 王德平 |
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| 作者单位： | 同济大学材料科学与工程学院,上海,201804 |
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| 基金项目： | 国家自然科学基金资助项目(50572072) |
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| 摘 要： | 采用了N-乙酰-L-半胱氨酸为稳定剂,通过水热法制备了荧光发射峰可调、粒径均匀且结晶性能良好的ZnxCd1-xSe合金量子点,并采用紫外-可见光吸收光谱（UV-Vis）、荧光光谱（PL）、X射线衍射（XRD）、高分辨透射电镜（HRTEM）等对其结构和性能进行了表征。重点研究了Cd2＋/Zn2＋比值、初始溶液pH值、水热反应温度和时间等实验条件对ZnxCd1-xSe量子点荧光性能的影响。研究表明所制备的量子点荧光量子产率高（35%）,荧光发射谱半峰宽窄（FWHM〈50nm）,有望作为生物荧光标记物。
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| 关 键 词： | CdSe荧光量子点 水热法 稳定剂 |
Hydrothermal synthesis of N-acetyl-L-crysteine stabilized Cd_xZn_(1-x)Se quantum dots |
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| GU Le-min,HU Lang,YAO Ai-hua,WANG De-ping. Hydrothermal synthesis of N-acetyl-L-crysteine stabilized Cd_xZn_(1-x)Se quantum dots[J]. Journal of Functional Materials, 2011, 42(10) |
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| Authors: | GU Le-min HU Lang YAO Ai-hua WANG De-ping |
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| Affiliation: | GU Le-min,HU Lang,YAO Ai-hua,WANG De-ping(School of Materials Science and Engineering,Tongji University,Shanghai 201804,China) |
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| Abstract: | In this paper,ZnxCd1-xSe quantum dots with tunable photoluminescence emission,uniform particle size and good crystallinity were synthesized by hydrothermal method,in which N-acetyl-L-crysteine was used as a stabilizer.UV-Vis absorption spectroscopy(UV-Vis),photoluminescence(PL) spectroscopy,X-ray diffraction(XRD) spectroscopy,and high-resolution transmission electron microscopy were used to characterize their structures and properties.The effects of Cd2+/Zn2+ ratio,pH of the precursor solution,hydrothermal ... |
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| Keywords: | CdSe fluorescent quantum dots hydrothermal stabilizer |
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