首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Laser induced metastable phases in microcrystalline silicon
Institution:1. Department of Chemistry, Southern Federal University, 344090 Rostov-on-Don, Russian Federation;2. Department of Chemistry and Pharmacy, North-Caucasus Federal University, 355017 Stavropol, Russian Federation;3. Institute of Physical and Organic Chemistry, Southern Federal University, 344090 Rostov-on-Don, Russian Federation;1. P. G. Demidov Yaroslavl State University, 150003 Yaroslavl, Russian Federation;2. Institute of Physiologically Active Compounds, Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, 142432 Chernogolovka, Moscow Region, Russian Federation;1. Department of Chemistry, Voronezh State University, 394018 Voronezh, Russian Federation;2. Faculty of Science, Tishreen University, 2237 Latakia, Syrian Arab Republic;1. Department of Chemistry, M. V. Lomonosov Moscow State University, 119991 Moscow, Russian Federation;2. A. N. Belozersky Institute of Physico-Chemical Biology, M. V. Lomonosov Moscow State University, 119991 Moscow, Russian Federation
Abstract:It has been found using Raman spectroscopy that metastable Si phases reversibly appear in silicon microparticles (µ-Si) due to local heating on increasing the power of a He–Ne excitation laser from 0.03 to 3 mW. Prolonged annealing of these phases by laser radiation makes it possible to estimate that local heating occurs to a temperature of ∼250 °C rather than 1000 °C as it was believed previously.
Keywords:silicon  Raman spectroscopy  line broadening and shifting  local heating  metastable phase
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号