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

来源：

LANGMUIR | 2008年 / 24卷 / 17期

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

页码：9194 / 9197

页数：4

共 23 条

[21] Surface passivation of luminescent colloidal quantum dots with poly(dimethylaminoethyl methacrylate) through a ligand exchange process [J].