Quantum dot fluorescence as a function of alkyl chain length in aqueous environments

被引:27
作者
Blum, Amy Szuchmacher [1 ]
Moore, Martin H. [1 ]
Ratna, Banahalli R. [1 ]
机构
[1] USN, Res Lab, Washington, DC 20375 USA
关键词
D O I
10.1021/la800932b
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
In this work, we examine the dependence of the fluorescence quantum yield of water-soluble CdSe/ZnS quantum dots on the local environment. The hydrophobicity of the local environment was modified by using different alkyl chain lengths in a set of oligo-ethylene glycols. Our results show that the quantum yield of CdSe/ZnS quantum dots C is highest for the longest alkyl chain length. suggesting that a more hydrophobic environment is beneficial for generating bright, water-soluble quantum dots.
引用
收藏
页码:9194 / 9197
页数:4
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