Water-soluble CdSe/ZnS quantum dots passivated by poly(glycino amino acid) phosphazenes
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.
polyphosphazenes CdSe/ZnS quantum dots water-solublity nanocomposite particles
ZHANG Teng YUAN Hui-ping SUO Hong-li
Key Laboratory of Advanced Functional Materials, College of Material Science and Engineering,Beijing University of Technology, Beijing 100124, China
国际会议
2009 Frontier Symposium of China Postductors on Materrials Science(2009年中国博士后材料科学前言论坛)
长沙
英文
645-650
2009-11-22(万方平台首次上网日期,不代表论文的发表时间)