| 固相法制备ZnO纳米晶的变温拉曼光谱 |
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| 引用本文： | 吴尝,朱克荣,马永青. 固相法制备ZnO纳米晶的变温拉曼光谱[J]. 阜阳师范学院学报(自然科学版), 2011, 0(2): 27-30 |
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| 作者姓名： | 吴尝 朱克荣 马永青 |
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| 作者单位： | 阜阳师范学院信息工程学院;安徽大学物理与材料科学学院;安徽大学现代实验技术中心; |
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| 基金项目： | 安徽大学人才队伍建设基金项目(02203105/05); 安徽省高等学校省级自然科学重点项目(KJ2010A012)资助 |
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| 摘 要： | 通过固相反应法,制备了不同粒径的ZnO纳米晶.采用透射电镜(TEM)、选区衍射(SAED)、X射线衍射(XRD)对制备的氧化锌纳米晶性质进行研究,通过室温和变温拉曼光谱,发现二级散射2TO模(983 cm-1)的相对强度随颗粒的减小而增大,这是由于小颗粒晶体的晶格平移对称性受到一定的破坏.随着温度的降低,ZnO的E2模...
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| 关 键 词： | ZnO 纳米晶 拉曼光谱 |
Raman spectra of ZnO nanocrystals at different temperatures synthesized by the technique of solid-phase reaction |
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| WU Chang,ZHU Ke-rong,MA Yong-qing. Raman spectra of ZnO nanocrystals at different temperatures synthesized by the technique of solid-phase reaction[J]. Journal of Fuyang Teachers College:Natural Science, 2011, 0(2): 27-30 |
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| Authors: | WU Chang ZHU Ke-rong MA Yong-qing |
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| Affiliation: | WU Chang1,ZHU Ke-rong2,3,MA Yong-qing2(1.Information Engineering College,Fuyang Teachers College,Fuyang Anhui 236041,China,2.School of Physics and Material Science,Anhui University,Hefei Anhui 230039,3.Modern Experiment Technology Center,China) |
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| Abstract: | ZnO nanoparticles,which are synthesized by the technique of solid-phase reaction,were characterized by XRD,TEM and SAED.Their optical properties are registered via Raman spectra,The reason why the relative strength of the second order mode(983 cm-1) increases with the decrease of the diameter is that the crystal lattice's symmetry of the small crystal is damaged to a certain extent.As the temperature decreases,the frequency of E2 mode turns to blue-shift and the band width turn to narrow,the reason of the r... |
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| Keywords: | ZnO nanocrystal Raman spectrum |
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