Synthesis and Characterization of CdSe@ZnSe@SiO_2 Core-Shell-Shell Nanoparticles

化学工业与工程

Chemcial Industry and Engineering

2009, Vol. 26

Issue (3) :194-198 DOI:

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Synthesis and Characterization of CdSe@ZnSe@SiO_2 Core-Shell-Shell Nanoparticles

XIE Chuang~(1,2),CHEN Wei~1,WANG Jing-kang~1(1.School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China;2.Post-Doctoral Station of Tianjin Economic and Technological Development Area,Tianjin 300457,China)

(1,2),CHEN Wei~1,WANG Jing-kang~1(1.School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China;2.Post-Doctoral Station of Tianjin Economic and Technological Development Area,Tianjin 300457,China

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Abstract Ⅱ—Ⅵ semiconductor CdSe nanocrystals were synthesized via TOP-TOPO-HDA route with minor modification.Consequently,CdSe@ZnSe core-shell nanoparticles were obtained by one-pot synthesis.Structure characterization of the coreshell nanocrystals by TEM revealed that the complex consists of a shell which includes Zn element determined by EDX.The stability experiment indicated that ZnSe shell could dramatically improve the optical stability of the CdSe core.Hexane-polyoxyethylene nonylphenyl ether(NP-5)-water microemulsion system was used to prepare CdSe@ZnSe@SiO_2 nanoparticles in the presence of silane coupling agent which is a key factor to achieve the synthesis of CdSe@ZnSe@SiO_2 nanoparticles.

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Received 2009-05-15; published 2009-05-15

Cite this article:

XIE Chuang~.Synthesis and Characterization of CdSe@ZnSe@SiO_2 Core-Shell-Shell Nanoparticles[J] Chemcial Industry and Engineering, 2009,V26(3): 194-198

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