| 光谱学与光谱分析 |
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| Microwave-Assisted Synthesis and Fluorescence Property of Mn-Doped ZnSe Nanoparticles |
| HAN Dong-mei1, 2, SONG Chun-feng1, LI Xiao-yu1* |
1. College of Materials Science and Engineering, Beijing University of Chemical Technology，Beijing 100029，China
2. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology，Beijing 100029，China |
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Abstract Transition metal doped Ⅱ-Ⅳ nanocrystals, which are expected to substitute for CdSe quantum dots as a new class of fluorescent label, obtain widespread concerns. In the present paper, Mn- doped ZnSe nanoparticles were prepared by microwave-irradiation method. Different organic amines were chosen. The effects of ligand and reaction conditions on the morphology and optical properties were investigated. TEM, EDS and photoluminescence spectra were used to investigate their morphology, structure and optical performance. The results showed that the Mn-doped ZnSe nanoparticles were orange and their average size was 200-500 nm. They had structured surface and single crystal wurtzite structure. The emission peak at about 530 nm was detected in the photoluminescence spectrum, which was attributable to Mn2+ transition emission. The effects of different ligands and doping ratio (Mn∶Zn) on the photoluminescence properties were significant.
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Received: 2009-09-02
Accepted: 2009-12-06
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Corresponding Authors:
LI Xiao-yu
E-mail: lixy@mail.buct.edu.cn
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