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ZnO纳米线的水热法生长

Hydrothermal Growth of ZnO Nanowire

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【作者】 赵文刚马忠权裴广庆杨文继徐飞王德明赵占霞

【Author】 ZHAO Wen-gang1,MA Zhong-quan1,PEI Guang-qing2,YANG Wen-ji1,XU Fei1,WANG De-ming1,ZHAO Zhan-xia1 (1.Department of Physics,Shanghai University,Shanghai 200444,China;2.Shanghai Institute of Optics and Fine Mechanics,Chinese Acadamy of Sciences, Shanghai 201800,China)

【机构】 上海大学物理系中国科学院上海光学精密机械研究所上海大学物理系 上海200444上海200444上海201800

【摘要】 本文采用两步湿化学法在玻璃衬底上制备了ZnO纳米线。首先,利用Sol-gel方法在载玻片上制备含有ZnO纳米颗粒的薄膜作为“种子”衬底。然后,利用水热法在“种子”衬底上生长了高度取向的ZnO纳米线。并对“种子”衬底和随后生长的ZnO纳米线进行了X射线衍射(XRD)、扫描电子形貌图(SEM)和原子力显微镜(AFM)等分析。结果表明“种子”衬底为大范围内纳米颗粒均匀一致的ZnO薄膜。通过水热法制备的ZnO纳米线的直径在50~80nm,平均直径为60nm,长度大约为2μm。该ZnO纳米线除了具有很强的紫外发光(399nm)外,还在蓝光(469nm)和绿光(569nm)波段有较弱的光致发光现象。

【Abstract】 In this paper,ZnO nanowires were synthesized on glasses with two steps of chemical method.First,the seeded substrate of ZnO nano-particles was prepared on glass by Sol-gel.Then high oriented ZnO nanowires were grown on the substrate through hydrothermal method.The seeded substrate and the ZnO nanowires were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),and atomic force microscopy(AFM),respectively.The results indicated that the seeded substrate was the uniform ZnO thin film with nano-particles in a large-scale.The diameter and the length of the nanowires were about 50~80nm and 2μm,respectively.A strong UV peak at 399nm,a weak blue band at 469nm and a weak green band at 569nm were observed in the photoluminescence(PL) spectrum of ZnO nanowires.

【关键词】 ZnO纳米线Sol-gel水热法PL谱
【Key words】 ZnO nanowiressol-gelhydrothermal methodPL spectrum
【基金】 教育部高校博士点基金资助
  • 【文献出处】 人工晶体学报 ,Journal of Synthetic Crystals , 编辑部邮箱 ,2007年03期
  • 【分类号】O614.241
  • 【被引频次】33
  • 【下载频次】1779
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