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以巯基羧酸为混合稳定剂制备CdTe量子点

DOI: 10.11830/ISSN.1000-5013.2010.06.0657

Keywords: CdTe, 量子点, 荧光, 巯基乙酸, 巯基丙酸, 水溶性

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Abstract:

选用巯基乙酸、巯基丙酸,以及两者一定比例的混合物作为稳定剂,分别在水相中合成表面带负电荷的水溶性CdTe量子点,并对其性能进行比较.研究结果表明,以巯基乙酸和巯基丙酸混合物(摩尔比为1∶4)作稳定剂合成的CdTe量子点,比单独采用巯基乙酸或巯基丙酸作稳定剂制备的CdTe量子点具有粒径可控、尺寸均一,更易获得长波长的量子点,而且有相对较窄的荧光半峰宽和较高的荧光量子产率.

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