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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 549Phosphine-Free Synthesis and Photoluminescence...

Phosphine-Free Synthesis and Photoluminescence Properties of ZnSe:Cu/ZnSe/ZnS Core/Shell Nanocrystals

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Abstract:

High quality zinc blende ZnSe nanocrystals were successfully synthesized using an environmentally friendierly phosphine-free method. Using pre-synthesized ZnSe nanocrystals as core to dope Cu²⁺ ions, we obtained ZnSe:Cu/ZnSe and ZnSe:Cu/ZnSe/ZnS core/shell nanocrystals. Absorption spectruscopy, photoluminescence (PL) spectruscopy, X-ray diffraction (XRD), and transmission electron microscopy (TEM) were used to characterize the structures and properties of as-synthesized three kinds of nanocrystals. The results demonstrated that nanocrystals had well dispersion and narrow size-distributions, and the PL emission peak of as-synthesized ZnSe:Cu/ZnSe/ZnS core/shell nanocrystals could be easily tuned from 480 nm to 520 nm by using different sized ZnSe cores.

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Chemical Engineering and Material Properties II

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Periodical:

Advanced Materials Research (Volume 549)

Pages:

12-16

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.549.12

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Online since:

July 2012

Authors:

Jin Zhong Niu, Gui Min Tian, Li Li Zheng, Yong Guang Cheng, Shuang Mei Zhu, Hao Shan Hao

Keywords:

Nanocrystal, Phosphine-Free Synthesis, Photoluminescence Property, ZnSe:Cu/ZnSe/ZnS

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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