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题名: Optical and magnetic properties of ZnS nanoparticles doped with Mn2+
作者: Peng, WQ;  Qu, SC;  Cong, GW;  Zhang, XQ;  Wang, ZG
发表日期: 2005
摘要: ZnS:Mn nanoparticles of the cubic zinc blende structure with the average sizes of about 3 nm were synthesized using a coprecipitation method and their optical and magnetic properties were investigated. Two emission bands were observed in doped nanoparitcles and attributed to the defect-related emission of ZnS and the Mn2+ emission, respectively. With the increase of Mn2+ concentration, the luminescence intensities of these two emission bands increased and the ZnS emission band shifted to lower energy. Based on the luminescence excitation spectra of Mn2+, the 3d(5) level structure of Mn2+ in ZnS nanoparticles is similar to that in bulk ZnS:Mn, regardless of Mn2+ concentration. Magnetic measurements showed that all the samples exhibit paramagnetic behavior and no antiferromagnetic interaction between Mn2+ ions exists, which are in contrast to bulk ZnS:Mn. (c) 2005 Elsevier B.V. All rights reserved.
KOS主题词: Nanostructured materials
刊名: JOURNAL OF CRYSTAL GROWTH
专题: 中国科学院半导体研究所(2009年前)_期刊论文

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Peng, WQ; Qu, SC; Cong, GW; Zhang, XQ; Wang, ZG .Optical and magnetic properties of ZnS nanoparticles doped with Mn2+ ,JOURNAL OF CRYSTAL GROWTH,AUG 15 2005,282 (1-2):179-185
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