Photoluminescence properties of Eu3+-doped ZnS nanocrystals prepared in a water/methanol solution
Data(s) |
2002
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Resumo |
Monodispersed ZnS and Eu3+-doped ZnS nanocrystals have been prepared through the co-precipitation reaction of inorganic precursors ZnCl2, EuCl3, and Na2S in a water/methanol binary solution. The mean particle sizes are about 3-5 nm. The structures of the as-prepared ZnS nanoparticles are cubic (zinc blende) as demonstrated by an x-ray powder diffraction. Photoluminescence studies showed a stable room temperature emission in the visible spectrum region for all the samples, with a broadening in the emission band and, in particular, a partially overlapped twin peak in the Eu3+-doped ZnS nanocrystals. The experimental results also indicated that Eu3+-doped ZnS nanocrystals, prepared by controlling synthetic conditions, were stable. (C) 2002 American Institute of Physics. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Qu SC; Zhou WH; Liu FQ; Chen NF; Wang ZG; Pan HY; Yu DP .Photoluminescence properties of Eu3+-doped ZnS nanocrystals prepared in a water/methanol solution ,APPLIED PHYSICS LETTERS,2002,80 (19):3605-3607 |
Palavras-Chave | #半导体物理 #SEMICONDUCTOR CLUSTERS #DOPED NANOCRYSTALS #OPTICAL-PROPERTIES #POLYMER MATRIX #MN #ELECTROLUMINESCENCE #LUMINESCENCE |
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期刊论文 |