Synthesis and Characterization of ZnS: Fe/ZnS Core-Shell Nanocrystals

Li Hua Li; Yong Jun Gu; Rui Shi Xie; Jian Guo Zhu

doi:10.4028/www.scientific.net/AMM.148-149.900

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 148-149Synthesis and Characterization of ZnS: Fe/ZnS...

Synthesis and Characterization of ZnS: Fe/ZnS Core-Shell Nanocrystals

Abstract:

ZnS:Fe and ZnS:Fe/ZnS core-shell nanocrystals were synthesized by chemical precipitation method. It was found that the ZnS: Fe based nanocrystals possess zinc blende structure. Compared to ZnS: Fe nanocrystals, the intensity of the X-ray diffraction peaks of ZnS: Fe/ZnS nanocrystals reduced and these peaks moved to lower angles. TEM images show that ZnS: Fe based nanocrystals are spheroidal and the average particles size is about 3~4 nm. PL spectra of ZnS: Fe nanocrystals revealed several mission bands, ~406nm, ~444nm, ~416nm, However, PL spectra of ZnS: Fe/ZnS nanocrystals showed several mission bands, ~420nm, ~432nm, ~449nm.

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Applied Mechanics and Materials (Volumes 148-149)

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900-903

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https://doi.org/10.4028/www.scientific.net/AMM.148-149.900

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December 2011

Authors:

Li Hua Li, Yong Jun Gu, Rui Shi Xie, Jian Guo Zhu

Keywords:

Chemical Precipitation, Core-Shell, Nanocrystal, Photoluminescence Spectra

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