收稿日期: 2010-06-17
修回日期: 2010-07-05
网络出版日期: 2011-05-15
基金资助
中国科学院研究生院院长基金(095101CY00)资助
Synthesis and study of CdTe QDs stabilized by D-GSH and 1-L-Glutamyl-D-Cysteinylglycine in aqueous solution
Received date: 2010-06-17
Revised date: 2010-07-05
Online published: 2011-05-15
使用5-D-谷氨酰-D-半胱氨酰甘氨酸(D-谷胱甘肽)及其同分异构体1-L-谷氨酰-D-半胱氨酰甘氨酸作为稳定剂,在水溶液中合成了碲化镉(CdTe)量子点.通过控制反应回流时间,研究了在不同的反应时间内由2种同分异构体稳定的CdTe量子点的紫外光谱,发现分子结构的细微差别能够引起量子点的表面状态不同,进而导致制备的量子点荧光性质不同.通过荧光光谱研究了2种分子稳定CdTe纳米粒子荧光性质的差异,并结合紫外-可见光谱,讨论了引起2种CdTe量子点荧光性质不同的原因.
关键词： D-谷胱甘肽; 1-L-谷氨酰-D-半胱氨酰甘氨酸; 同分异构体; 荧光性质
金珊 , 周云龙 , 宋锐 . D-谷胱甘肽及其同分异构体稳定的水相碲化镉量子点制备及其荧光性质的研究[J]. 中国科学院大学学报, 2011 , 28(3) : 304 -309 . DOI: 10.7523/j.issn.2095-6134.2011.3.004
D-GSH and 1-L-Glutamyl-D-Cysteinylglycine were used as stabilizers to promote CdTe evolution in aqueous solution. We have studied the UV-Vis spectra of CdTe QDs by controlling reflux time and found that tiny differences between D-GSH and 1-L-Glutamyl-D-Cysteinylglycine in molecular structure can result in different surface states of CdTe QDs, leading to different fluorescent properties. We also discuss the reasons for these differences.
Key words： D-GSH; 1-L-Glutamyl-D-Cysteinylglycine; isomeride; fluorescent properties
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