Facile and green route to highly luminescent ZnS-shelled CdSe nanocrystals
来源期刊：Rare Metals2009年第2期
论文作者：YE Xinyua,b,ZHUANG Weidonga,HU Yunshenga,LUO Xinyua,ZHAO Chunleia,and HUANG Xiaoweia a National Engineering Research Center for Rare Earth Materials,General Research Institute for Nonferrous Metals,and Grirem Advanced Materials Co. Ltd.,Beijing ,China b School of Material and Chemistry Engineering,Jiangxi University of Science and Technology,Ganzhou ,China
文章页码：107 - 111
摘 要：Highly luminescent CdSe/ZnS nanocrystals were obtained by adapting non-TOP-based synthesis and a subsequent two-phase ZnS shelling procedure:the core CdSe nanocrystals were synthesized in sole solvent paraffin liquid with cadmium oxide,elemental sele-nium,and oleic acid; the deposition of the ZnS shell was conducted by using zinc stearate in toluene and sodium sulfide in deionized water. The green and low-cost route was proved to be more efficient to constrain the size of core nanocrystals while tuning the growth of shell particles,which results in high quantum yields of CdSe/ZnS nanocrystals. The present route is accessible to laboratories with limited synthetic expertise to create CdSe/ZnS nanocrystals and easily scaled up to industrial applications.
摘要：Highly luminescent CdSe/ZnS nanocrystals were obtained by adapting non-TOP-based synthesis and a subsequent two-phase ZnS shelling procedure:the core CdSe nanocrystals were synthesized in sole solvent paraffin liquid with cadmium oxide,elemental sele-nium,and oleic acid; the deposition of the ZnS shell was conducted by using zinc stearate in toluene and sodium sulfide in deionized water. The green and low-cost route was proved to be more efficient to constrain the size of core nanocrystals while tuning the growth of shell particles,which results in high quantum yields of CdSe/ZnS nanocrystals. The present route is accessible to laboratories with limited synthetic expertise to create CdSe/ZnS nanocrystals and easily scaled up to industrial applications.
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