期刊
ADVANCED FUNCTIONAL MATERIALS
卷 19, 期 6, 页码 875-886出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.200801049
关键词
-
类别
资金
- Agence Nationale de Recherche, France [RNMP05-PRONANOX]
- Midi Pyrenees Regional council
- [TMS 094-2A-026]
Here, the large scale synthesis of nanocrystalline ZnO spheres and tetrapods in the size range of 8-40 nm by chemical vapor synthesis using zinc metal as precursor is described. A detailed study of the effect of experimental parameters on the morphology and yield is presented. High-resolution transmission electron microscopy images of the tetrapods show that they are formed by the self assembly of four nanorods in the vapor phase. The tetrapods have optical absorption coefficients that are one order of magnitude greater than the spheres and show intense UV luminescence whereas the spheres show only the green emission. The observed differences in the optical properties are related to the presence of surface defects present in the nanospheres. The tetrapods have increased efficiencies for application in dye sensitized solar cells when compared to spheres.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据