CdSe@ZnSe@SiO_2核壳壳型纳米粒子的制备与表征

摘要通过TOP-TOPO-HDA路线制备了CdSe纳米晶体,并在此基础上通过一步法制备出CdSe@ZnSe核壳纳米粒子。利用环己烷-壬基酚聚(5)氧乙烯醚(NP-5)-水的微乳体系为模板,通过硅烷偶联剂的作用制备出CdSe@ZnSe@SiO2复合纳米粒子,并通过TEM、EDX和UV-Vis等手段对所得纳米粒子进行了表征。

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	谢闯
	陈巍
	王静康

关键词： CdSe ZnSe SiO2 核壳纳米粒子

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

引用本文:

谢闯;陈巍;王静康;.CdSe@ZnSe@SiO_2核壳壳型纳米粒子的制备与表征[J]. 化学工业与工程, 2009,26(3): 194-198

XIE Chuang~.Synthesis and Characterization of CdSe@ZnSe@SiO_2 Core-Shell-Shell Nanoparticles[J]. Chemcial Industry and Engineering, 2009,26(3): 194-198

[1]	COE S,WOO W K,BAWENDI M,et al.Electroluminescence from single monolayers of nanocrystalsin molecular organic devices[J].Nature.2002,420(6 917):800-803
[2]	POZNYAK S K,TALAPIN D V,SHEVCHENKO E V,etal.Quantum dot chemiluminescence[J].Nano Lett.2004,4(4):693-698
[3]	TALAPIN D V,POZNYAK S K,GAPONIK N P,et al.Synthesis of surface-modified colloidal semiconductornanocrystals and study of photoinduced charge separationand transport in nanocrystal-polymer composites[J].Physica E.2002,14(1/2):237-241
[4]	ARTEMYEV M V,WOGGON U,WANNEMACHER R,etal.Light trapped in a photonic dot:Microspheres act as acavity for quantum dot emission[J].Nano Lett.2001,1(6):309-314
[5]	TALAPIN D V,MEKIS I,GOLTZINGER S,et al.CdSe/CdS/ZnS and CdSe/ZnSe/ZnS core-shell-shell nanocrystals[J].J Phys Chem B,2004,A-F.
[6]	REISS P,BLEUSE J,PRON A.Highly luminescent CdSe/ZnSe core/shell nanocrystals of low size dispersion[J].NanoLett,2002,2(7):781-784.
[7]	HINES M A,GUYOT-SIONNEST P.Synthesis andcharacterization of strongly luminescing ZnS-capped CdSenanocrystals[J].J Phys Chem.1996,100:468-471
[8]	MEKIS I,TALAPIN D V,KORNOWSKI A,et al.One-pot synthesis of highly luminescent CdSe/CdS core-shellnanocrystals via organometallic and“greener”chemicalapproaches[J].J Phys Chem B,2003,107:7 454-7 462.
[9]	SELVAN S T,TAN T T,YING J Y.Robust,non-cytotoxic,silica-coated CdSe quantum dots with efficientphotoluminescence[J].Adv Mater,2005,17(13):1 620-1 625.
[10]	GERION D,PINAUD F,WILLIAMS S C,et al.Synthesisand properties of biocompatible water-soluble silica-coatedCdSe/ZnS semiconductor quantum dots[J].J Phys Chem B.2001,105(37):8-
[11]	CORREA-DUARTE M A,GIERSIG M,LIZ-MARZAN L.Stabilization of CdS semiconductor nanoparticles againstphotodegradation by a silica coating procedure[J].ChemPhys Lett,1998,286:497-501.
[12]	TAGO T,HATSUTA T,MIYAJIMA K,et al.Novelsynthesis of silica-coated ferrite nanoparticles prepared usingwater-in-oil microemulsion[J].J Am Ceram Soc,2002,85(9):2 188-2 194.
[13]	QU L,PENG Z A,PENG X.Alternative routes toward highquality CdSe nanocrystals[J].Nano Lett.2001,1(6):333-337
[14]	ARRIAGADA F J,OSSEO-ASARE K.Synthesis of nanosizesilica in a nonionic water-in-oil microemulsion:Effects ofthe water/surfactant molar ratio and ammonia concentration[J].J Colloid Interface Sci.1999,211:210-220
[15]	TALAPIN D V,ROGACH A L,KORNOWSKI A,et al.Highly luminescent monodisperse CdSe and CdSe/ZnSnanocrystals synthesized in a hexadecylamine-trioctylphosphine oxide-trioctylphospine mixture[J].NanoLett,2001,1(4):207-211.
[16]	PENG X,SCHLAMP M C,KADAVANICH A V,et al.Epitaxial growth of highly luminescent CdSe/CdS core/shellnanocrystals with photostability and electronic accessibility[J].J Am Chem Soc,1997,119(30):7 019-7 029.