| 巯基丙酸还原TeO2水相一步法合成CdTe/ZnTe核壳型量子点 |
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| 引用本文： | 徐丹敏,张汉浪,沈茂,张志力,唐文渊.巯基丙酸还原TeO2水相一步法合成CdTe/ZnTe核壳型量子点[J].陕西化工,2014(2):322-325. |
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| 作者姓名： | 徐丹敏 张汉浪 沈茂 张志力 唐文渊 |
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| 作者单位： | 台州学院医药化工学院,浙江台州318000 |
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| 摘 要： | 以TeO2为碲源,巯基丙酸（MPA）为稳定剂和还原剂,采用微波辅助加热法一步合成水溶性CdTe/ZnTe核壳结构的半导体量子点.考察了Cd/Zn反应物配比及MPA用量对CdTe/ZnTe量子点性能的影响,并用紫外、荧光光谱、高分辨透射电子显微镜（HRTEM）、X射线粉末衍射（XRD）光谱和EDX电子能谱对CdTe/ZnTe进行了表征.结果表明,在不需要另加NaBH4的条件下,同样能合成水溶性的CdTe/ZnTe量子点,且该核壳结构的CdTe/ZnTe量子点比单一的CdTe量子点具有更高的荧光量子产率.
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| 关 键 词： | TeO2 合成 巯基丙酸 量子点 核壳型 |
Facile synthesis of highly luminescent CdTe/ZnTe core-shell quantum dots with 3-mercaptopropionic acid reduction tellurium dioxide directly |
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| XU Dan-rain,ZHANG Han-lang,SHEN Mao,ZHANG Zhi-li,TANG Wen-yuan.Facile synthesis of highly luminescent CdTe/ZnTe core-shell quantum dots with 3-mercaptopropionic acid reduction tellurium dioxide directly[J].Applied Chemical Industry,2014(2):322-325. |
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| Authors: | XU Dan-rain ZHANG Han-lang SHEN Mao ZHANG Zhi-li TANG Wen-yuan |
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| Affiliation: | ( Institute of Pharmaceutical and Chemical Engineering, Taizhou University, Talzhou 318000, China) |
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| Abstract: | A facile one-step synthesis of CdTe/ZnTe core-shell quantum dots （QDs） in aqueous solution by atmospheric microwave reactor has been developed using 3-mercaptopropionic acid reduction TeO2 directly,which avoids the cumbersome processes associated with NaHTe or H2Te sources. The samples were characterized by ultraviolet-visible spectroscopy, fluorescent spectroscopy, high-resolution transmission electron microscopy （HRTEM）, X-ray powder diffraction （XRD） and energy-dispersive spectroscopy （EDX）. The result showed that in comparison with the plain CdTe QDs, the photolumineseenee （PL） quantum yiled （QY） of the CdTe/ZnTe core-shell QDs have been greatly improved. |
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| Keywords: | TeO2 synthesis glutathione quantum dot core-shell |
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