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Structural and Optical Investigation of Mn-Doped ZnS Nanocrystals

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Abstract:

Using a solution-based chemical method, we have prepared ZnS nanocrystals doped with high concentration of Mn2+. The X-ray diffraction analysis confirmed a zinc blende structure. The average size was about 3 nm. Photoluminescence spectrum showed room temperature emission in the visible spectrum, which consisted of the defect-related emission and the 4 T1-6 A1 emission of Mn2+ ions. Compared with the undoped sample, the luminescence of the ZnS:Mn sample is enhanced by more than an order of magnitude, which indicated that the Mn2+ ions can efficiently boost the luminescence of ZnS nanocrystals.

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Periodical:

Materials Science Forum (Volumes 475-479)

Pages:

1795-1798

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.475-479.1795

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Online since:

January 2005

Authors:

W.Q. Peng, S.C. Qu, G.W. Cong, Z.G. Wang

Keywords:

Nanocrystal, Photoluminescence (PL), ZnS

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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