| 反应时间对球状及棒状ZnO纳米晶的影响 |
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| 引用本文： | 王庆玲,朱帅,屠瑶,金一政,叶志镇. 反应时间对球状及棒状ZnO纳米晶的影响[J]. 材料科学与工程学报, 2010, 0(4) |
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| 作者姓名： | 王庆玲 朱帅 屠瑶 金一政 叶志镇 |
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| 作者单位： | 浙江大学硅材料国家重点实验室; |
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| 基金项目： | 国家自然科学基金资助项目(50802085) |
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| 摘 要： | 本实验采用溶液法合成球状及棒状ZnO纳米晶。X射线衍射分析(XRD)显示合成的纳米晶为六方纤锌矿结构ZnO。紫外可见光(UV-vis)光谱和透射电镜(TEM)图表明通过改变反应时间可以控制ZnO纳米棒的长度。随着反应时间从90min延长到360min,纳米棒的长度可以从25nm长大到60nm。同时,纳米晶的室温光致发光谱(PL)具有强烈的近带边发射,在LED和LD等光电器件上有一定的应用前景。
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| 关 键 词： | ZnO 纳米晶 溶液法 量子限域效应 |
Influence of Reaction Time on Spherical and Rod-like ZnO Nanocrystals |
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| WANG Qing-ling,ZHU Shuai,TU-Yao,JIN Yi-zheng,YE Zhi-zhen. Influence of Reaction Time on Spherical and Rod-like ZnO Nanocrystals[J]. Journal of Materials Science and Engineering, 2010, 0(4) |
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| Authors: | WANG Qing-ling ZHU Shuai TU-Yao JIN Yi-zheng YE Zhi-zhen |
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| Affiliation: | WANG Qing-ling,ZHU Shuai,TU-Yao,JIN Yi-zheng,YE Zhi-zhen(State Key Lab of Silicon Materials,Zhejiang University,Hangzhou 310027,China) |
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| Abstract: | Spherical and rod-like ZnO nanocrystals have been prepared by solution based method in this paper.The X-ray diffraction(XRD) pattern of the nanocrystals matches well with that of bulk wurtzite type of ZnO.Ultraviolet-visible(UV-vis) and transmission electron microscopy(TEM) analysis indicate that the length of ZnO nanorods can be well controlled by the reaction time.The length of ZnO nanorods increases from 25nm to 60nm as reaction time increases from 90min to 360min.In addition,ZnO nanocrystals exhibit str... |
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| Keywords: | ZnO nanocrystals solution method quantum confinement effect |
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