| ZnS:Mn2+/聚苯乙烯核壳及ZnS:Mn2+中空球的制备和光谱性质 |
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| 作者单位： | 中国科学技术大学,化学系,合肥,230026;中国科学技术大学,中国科学院结构分析重点实验室,合肥,230026;中国科学技术大学,化学系,合肥,230026 |
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| 摘 要： |
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| 关 键 词： | ZnS:Mn2+ 核壳结构 中空球 |
Preparation and Photoluminescence of ZnS:Mn2 +/polystyrene Core-Shell Structures and ZnS:Mn2+ Hollow Spheres |
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| Authors: | Zhang Lixin Zhang Ren Wang Lin Zhou Chunming Jin Pu Chen Qianwang |
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| Abstract: | ZnS:Mn2+ polystyrene (PS) core-shell structures and ZnS:Mn2+ hollow spheres were prepared by a sonoehemical deposition approach. Transmission electron micrograph (TEM) studies show that the PS surface is covered by a thin shell consisted of ZnS: Mn2+ nanoparticles with an average size of 9 nm. ZnS: Mn2+ hollow spheres were obtained by heating the core-shell particles in air at 500 ℃ to drive off PS. The photoluminescence spectrum for the emission band of Mn2+ peaked at 540 nm, and a 45 nm blue shift compared to that of corresponding bulk sample, was discussed based on the Mn-O octahedral distortion induced by shell structure. |
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| Keywords: | ZnS: Mn2 + Core-shell Hollow sphere |
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