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Crystal growth and structure determination of silicon telluride Si2Te3

kery 添加于 2017/4/12 14:09:56  172次阅读 | 0次推荐 | 0个评论

Large single crystals of Si2Te3, which is the only stable phase in the SiTe system, were successfully grown by the Bridgman technique and by sublimation. Si2Te3 crystallizes in the trigonal space group P3̄1c with a = 7.430 Å, C = 13.482 Å, and z = 4. Using 856 independent intensities the structure was refined to R = 0.070. As compared to the GaS layer structure, Si3Te3 contains Si2 units with SiSi bond distances of about 2.3 Å. In Si2Te3, however, only 14 of the Si2 units run parallel to the c-axis direction, the others exhibit more complex orientations. Each Si is tetrahedrally coordinated by 3 Te and 1 Si, having SiTe bond lengths of about 2.55 Å. Each Te is bonded to only 2 Si atoms with SiTeSi

作 者:K. Ploog. Author links open the author workspace., W. Stetter. Author links open the author workspace., A. Nowitzki. Author links open the author workspace., E. Schönherr
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学科领域:工程材料 » 无机非金属材料 » 半导体材料
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原文链接:http://www.sciencedirect.com/science/article/pii/0025540876900143
DOI: https://doi.org/10.1016/0025-5408(76)90014-3
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