Single nonblinking CdTe qnantnm dots synthesized in aqueous thiopropionic acid

被引:60
作者
He, Hua [1 ]
Qian, Huifeng [1 ]
Dong, Chaoqing [1 ]
Wang, Kanglin [1 ]
Ren, Jicun [1 ]
机构
[1] Shanghai Jiao Tong Univ, Coll Chem & Chem Engn, Shanghai 200240, Peoples R China
关键词
colloids; fluorescence; nanostructures; quantum chemistry; semiconductors;
D O I
10.1002/anie.200602758
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Figure Presented) Blinking marvelous! In contrast to quantum dots (QDs) synthesized in organic solutions, CdTe QDs synthesized in aqueous solutions containing thiopropionic acid do not blink. The fluorescence of these QDs is steady under continuous laser excitation (see picture, the gray line is the background intensity). The presence of thio groups on the surface of the QDs is key to their antiblinking behavior. © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:7588 / 7591
页数:4
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