Synthesis and photoluminescence of belt-shaped Si3N4 whiskers |
| |
| Authors: | Yajie Xu Hongli Du Jie Li Hesun Zhu |
| |
| Affiliation: | Research Center of Materials Science, Beijing Institute of Technology, Beijing 100081, People's Republic of China |
| |
| Abstract: | Belt-shaped Si3N4 whiskers have been synthesized by a carbothermal reduction and nitridation method. The whiskers had an average width of 800 nm, width-to-thickness ratios of 4-6, and a length in the range of several tens of microns to hundreds of microns. Photoluminescence (PL) spectrum of the whiskers showed a strong blue emission peak at 410 nm, and PL lifetime measurement exhibited a rapid decay within a few nanoseconds. The growth of the whiskers was supposed to be dominated by a vapor-solid (VS) mechanism. |
| |
| Keywords: | Nitrides X-ray diffraction Electron diffraction Optical properties |
| 本文献已被 ScienceDirect 等数据库收录！ |
