| ZnO纳米带梳的制备及生长机理的研究 |
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| 引用本文： | 李新宇,郭建,丁书龙,林铁军,董敬桃.ZnO纳米带梳的制备及生长机理的研究[J].材料导报,2006,20(Z1):131-132,137. |
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| 作者姓名： | 李新宇 郭建 丁书龙 林铁军 董敬桃 |
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| 作者单位： | 湘潭大学材料与光电物理学院,湘潭,411105 |
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| 摘 要： | 采用化学气相沉积(CVD)法成功制备出ZnO纳米带梳,实验过程不需要催化剂.X射线衍射仪(XRD)分析结果表明,ZnO纳米带梳为高度结晶的六方纤锌矿结构;利用扫描电子显微镜(SEM)观测,所制样品是由纳米带组成梳状形貌,纳米带梳的形成经过两个步骤:先通过VS机制形成微米带,而梳的齿通过自催化生长平行于(0001)极性面形成.对样品的光致荧光(PL)谱测量发现了位于～395nm和495nm处的室温光致发光峰.
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| 关 键 词： | ZnO纳米带梳 ZnO纳米梳 生长机制 光致发光 |
Preparation and the Growth Mechanism of ZnO Comb-like Nanobelts |
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| LI Xinyu,GUO Jian,DING Shulong,LIN Tiejun,DONG Jingtao.Preparation and the Growth Mechanism of ZnO Comb-like Nanobelts[J].Materials Review,2006,20(Z1):131-132,137. |
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| Authors: | LI Xinyu GUO Jian DING Shulong LIN Tiejun DONG Jingtao |
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| Abstract: | ZnO comb-like nanobelts are synthesized by chemical vapor deposition (CVD) without any catalyst. X-ray diffraction (XRD) reveals that the ZnO comb-like nanobelts are of high crystallinity with wurtzite structure. The synthesized products look on comb-shaped morphology through the observation using scanning electron microcope (SEM).The formation of the comb-like microbelts follows a two-step process: the comb-stems are formed by a fast vapor-solid (VS) growth mechanism, and the comb-teeth are grown by self-catalyst growth parallel to the (0001) polar surface. Room-temperature photoluminescence spectra found the PL peaks locate at 395 nm and 495 nm. |
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| Keywords: | ZnO nanocombs ZnO comb-like nanobelts growth mechanism photoluminescence |
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