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题名: Real‐Time Hot‐Stage High‐Voltage Transmission Electron Microscopy Precipitation of CdS Nanocrystals in Glasses: Experiment and Theoretical Analysis
作者: Liu, Li‐Chi;Subhash H. Risbud
贡献者: 物理學系
日期: 1994
上传时间: 2013-06-05T07:46:26Z
出版者: American Institute of Physics
摘要: Hot‐stage high‐voltage (1.5 MeV) transmission electron microscopy was used to directly observe CdS nanocrystals precipitated in a silicate glass and a theoretical framework of nanocrystal coarsening kinetics more appropriate than the popularly used Lifshitz–Slyozov–Wagner theory was developed. Nanocrystallite nucleation and coarsening were monitored in situ by video taping of bright‐field images of the edges of thin (less than 2 μm) glass fragments heated in the hot stage; crystallite size distribution was obtained from the taped experimental observations. The effects of electron‐beam heating and diffusion out of the nanocrystals were included in developing the theoretical analysis of coarsening kinetics which were used, in turn, to interpret the experimental size distribution curves.
關聯: Journal of Applied Physics, 76(8): 4576-4580
显示于类别:[物理學系] 期刊論文


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