期刊
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
卷 13, 期 8, 页码 5744-5749出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2013.7563
关键词
ZnO; Nanosheets; Growth; Crystallography; Cathodoluminescence
类别
资金
- Research Fund for the Doctoral Program of Higher Education of China [20100041120031]
- Institute of Metal Research [Y2NCA111A1]
ZnO nanosheets with triangular morphology have been synthesized on an Au-coated silicon substrate through a facile thermal evaporation process. The morphologies and microstructures of the nanosheets were studied by a scanning electron microscope (SEM) and a high-resolution transmission electron microscope (HR-TEM). These studies show that a nanosheet is commonly composed of two parts: a triangular ZnO sheet and an Au nanoparticle attached on its tip-end. Detailed crystallography analyses conclude that the formation of the highly crystalline nanostructures can be assigned to a combination of a vapor liquid solid (VLS) process that is believed to be responsible for its initial nucleation and subsequent crystallization along the growth direction, and a vapor solid (VS) process that is responsible for its further radial growth. The spatially-resolved cathodoluminescence (CL) spectra exhibit a sharp strong near-band-edge (NBE) emission in the ultraviolet range and a negligible green emission.
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