Surface passivation of luminescent colloidal quantum dots with poly(dimethylaminoethyl methacrylate) through a ligand exchange process

被引：142
|
作者：
Wang, XS [1 ]
Dykstra, TE [1 ]
Salvador, MR [1 ]
Manners, I [1 ]
Scholes, GD [1 ]
Winnik, MA [1 ]
机构：
[1] Univ Toronto, Dept Chem, Toronto, ON M5S 3H6, Canada
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2004年 / 126卷 / 25期
关键词：
D O I：
10.1021/ja0489339
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Polydimethylaminoethyl methacrylate (PDMAEMA) was used as a multidentate ligand to modify the surface of CdSe/ZnS core-shell colloidal quantum dots in toluene with trioctylphosphine oxide (TOPO) as the surface ligand. Adsorption of PDMAEMA was accompanied by release of TOPO. The process is free of agglomeration, and the modified nanocrystals become soluble in methanol. The photoluminescence properties are well-preserved in either toluene or methanol. Copyright © 2004 American Chemical Society.
引用
收藏
页码：7784 / 7785
页数：2
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