摘要Silicon nanocrystals synthesized by electron beam (e-beam) evaporation of Si and SiO2 mixture are studied. Rutherford backscattering spectrometry of the as-deposited Si-rich silicon dioxide or oxide (SRO) thin film shows that after evaporation, the Si and SiO2 concentration is well kept, indicating that the e-beam evaporation is suitable for evaporating mixtures of Si and SiO2. The SRO thin films are annealed at different temperatures for two hours to synthesize silicon nanocrystals. For the sample annealed at 1050°C, silicon nanocrystals with different sizes and the mean diameter of 4.5nm are evidently observed by high resolution transmission electron microscopy (HRTEM). Then the Raman scattering and photoluminescence spectra arising from silicon nanocrystals are further confirmed the above results.
Abstract：Silicon nanocrystals synthesized by electron beam (e-beam) evaporation of Si and SiO2 mixture are studied. Rutherford backscattering spectrometry of the as-deposited Si-rich silicon dioxide or oxide (SRO) thin film shows that after evaporation, the Si and SiO2 concentration is well kept, indicating that the e-beam evaporation is suitable for evaporating mixtures of Si and SiO2. The SRO thin films are annealed at different temperatures for two hours to synthesize silicon nanocrystals. For the sample annealed at 1050°C, silicon nanocrystals with different sizes and the mean diameter of 4.5nm are evidently observed by high resolution transmission electron microscopy (HRTEM). Then the Raman scattering and photoluminescence spectra arising from silicon nanocrystals are further confirmed the above results
(Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures)
引用本文:
LI Wei-Long;JIA Rui;LIU Ming;CHEN Chen;XIE Chang-Qing;ZHU Chen-Xin;LI Hao-Feng;ZHANG Pei-Wen;YE Tian-Chun. Fabrication and Characterization of Si Nanocrystals Synthesized by Electron Beam Evaporation of Si and SiO2 Mixture[J]. 中国物理快报, 2009, 26(4): 46801-046801.
LI Wei-Long, JIA Rui, LIU Ming, CHEN Chen, XIE Chang-Qing, ZHU Chen-Xin, LI Hao-Feng, ZHANG Pei-Wen, YE Tian-Chun. Fabrication and Characterization of Si Nanocrystals Synthesized by Electron Beam Evaporation of Si and SiO2 Mixture. Chin. Phys. Lett., 2009, 26(4): 46801-046801.
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2009, Vol. 26 
