期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 111, 期 17, 页码 6233-6237出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp070115q
关键词
-
Twinned zigzag SiC nanoneedles have been synthesized by silicon evaporation onto multiwall carbon nanotubes (MWCNTS) at 1500 degrees C for 8 h. The product was characterized by X-ray diffraction (XRD), field emission scanning electron microscope (FESEM), and high-resolution electron transmission microscope (HRTEM). The results show that the SiC nanoneedles have a zigzag surface, which is composed of (111) [11 (2) over bar] periodic twined segments. The growth of twinned zigzag SiC nanoneedles was realized by the vapor-solid (VS) reaction, in which (111) plane stacks in a (111) [11 (2) over bar] twinning manner, creating (11 (1) over bar) faceting over the nanoneedle surface. The photoluminescence (PL) spectrum of the SiC nanoneedle shows considerable blue shifts of multi-PL peaks relative to the bulk 3C-SiC, due to the collective influence of size effects and defects.
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