...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Structure and photoluminescence properties of Ag-coated ZnO nano-needles
【24h】

Structure and photoluminescence properties of Ag-coated ZnO nano-needles

机译：涂银的ZnO纳米针的结构和光致发光性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A large number of zinc oxide (ZnO) nano-needles were synthesized by thermal oxidation of pure zinc. The surfaces of ZnO nano-needles were coated with a layer of Ag by pulse electro-deposition technique. The uncoated and coated ZnO nano-needles were characterized by using the X-ray diffraction and the scanning electron microscope (SEM). The results showed that the uncoated samples were close-packed hexagonal structure, which showed needle-like morphology. Their average diameter is about 40 nm, lengths up to 5 u,m. At the same time we observed that the prepared ZnO nano-needles have been coated with Ag successfully. The photoluminescence spectrums of ZnO nano-needles with Ag-coated and uncoated were analyzed, finding that the uncoated ZnO nano-needles have two fluorescence peaks at 388 nm and 470.8 nm, respectively, the relative intensity of 143.4 and 93.61; and the Ag-coated ZnO nano-needles showed a pair of strong peaks at 387.4 nm and 405.2 nm, the relative intensity of 1366 and 1305, respectively, indicating that the Ag-coated ZnO nano-needles can increase the absorption of UV light.
机译：通过纯锌的热氧化合成了大量的氧化锌（ZnO）纳米针。 ZnO纳米针的表面通过脉冲电沉积技术涂有一层Ag。通过使用X射线衍射和扫描电子显微镜（SEM）对未涂覆和涂覆的ZnO纳米针进行表征。结果表明，未涂覆的样品为密排六边形结构，呈针状形态。它们的平均直径约为40 nm，长度可达5 u，m。同时，我们观察到制备的ZnO纳米针已经成功被Ag包覆。对镀银和未镀银的ZnO纳米针的光致发光光谱进行分析，发现未镀锌的ZnO纳米针在388 nm和470.8 nm处有两个荧光峰，相对强度分别为143.4和93.61。包覆Ag的ZnO纳米针分别在387.4nm和405.2nm处有一对强峰，相对强度分别为1366和1305，表明包覆Ag的ZnO纳米针可以增加紫外光的吸收。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号