人工晶体学报2012，Vol.41Issue(4)：834-839,6.
中子辐照α-Al2O3单晶的光学性质研究
Study on Optical Properties of Neutron Radiated α-Al2O3
祝威 1黄丽 2陈敬 1侯贝贝 1王鹏飞 1阮永丰1
作者信息
- 1. 天津大学理学院,天津300072
- 2. 天津商业大学理学院,天津300134
- 折叠
摘要
Abstract
In this paper, the neutron-irradiated a-Al2O3 was analyzed by the optical absorption spectroscopy, photoluminescence ( PL) spectroscopy, and Raman spectroscopy. The optical absorption spectra showed that neutron irradiation can induce the formation of [ Al-0 ] ~ color center which possesses 325 nm and 638 nm peaks, in addition to F2, F2+, F2 + , and F3 color centers. The [ Al-0 ]3" color center disappears after the 300 t thermal treatment. PL spectra present the interesting 625 nm and 657 nm peaks and the peaks related to F2, F2+ , and F2+. The formation of 625 nm luminescence peak may be under high dose neutron irradiation. Only the 657 nm peak can survive after 800 t annealing process and might originate from antisite Al defects ( Al0 ). The Raman peaks of neutron irradiated sample show no obvious frequency shift and broadening.关键词
Al2O3/中子辐照/色心/光学性质Key words
A12O3/ neutron irradiation/ color center/ optical property分类
数理科学引用本文复制引用
祝威,黄丽,陈敬,侯贝贝,王鹏飞,阮永丰..中子辐照α-Al2O3单晶的光学性质研究[J].人工晶体学报,2012,41(4):834-839,6.
