Water-soluble CdSe/ZnS quantum dots passivated by poly(glycino amino acid) phosphazenes  

作　　者：张腾 袁慧萍 索红莉 

机构地区：[1]Key Laboratory of Advanced Functional Materials,College of Material Science and Engineering,Beijing University of Technology

出　　处：《中国有色金属学会会刊：英文版》2009年第S3期645-650,共6页Transactions of Nonferrous Metals Society of China

基　　金：Project(2006CB601005) supported by the National Basic Research Program of China;project(200331) supported by the National Excellent Doctoral Dissertations of China;project(Q5009001200801) supported by the Post-Doctoral Science and Technology Foundation from Beijing University of Technology

摘　　要：Poly(organophosphazenes) have potential applications in making water-soluble and biocompatible quantum dots (QDs) due to their wide variety of properties. The CdSe QDs of green emission and the core-shell CdSe/ZnS QDs of red emission were prepared. Subsequently the trioctylphosphine oxide-stabilized CdSe/ZnS QDs were transferred from chloroform into water through a ligand exchange process with poly(glycino amino acid)phosphazenes, which can be obtained from the saponification of poly (glycino amino ester)phosphazenes at room temperature. The resulting QDs-polymer nanocomposite particles can form colloidally stable suspensions in water and exhibit good photostability.Poly(organophosphazenes) have potential applications in making water-soluble and biocompatible quantum dots (QDs) due to their wide variety of properties. The CdSe QDs of green emission and the core-shell CdSe/ZnS QDs of red emission were prepared. Subsequently the trioctylphosphine oxide-stabilized CdSe/ZnS QDs were transferred from chloroform into water through a ligand exchange process with poly(glycino amino acid)phosphazenes, which can be obtained from the saponification of poly (glycino amino ester)phosphazenes at room temperature. The resulting QDs-polymer nanocomposite particles can form colloidally stable suspensions in water and exhibit good photostability.

关 键 词：POLYPHOSPHAZENES CDSE/ZNS quantum DOTS water-solublity nanocomposite particles 

分 类 号：O611.3[理学—无机化学]