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吉首大学物理与机电工程学院 材料制备实验室, 湖南 吉首,416000
纸质出版日期:2017-9-5,
网络出版日期:2017-6-6,
收稿日期:2017-1-22,
修回日期:2017-3-11,
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杨学弦, 宁杨华, 王小云等. 小尺寸Ⅳ族材料拉曼谱与晶体结构的研究[J]. 发光学报, 2017,38(9): 1192-1197
YANG Xue-xian, NING Yang-hua, WANG Xiao-yun etc. Raman Spectra and Crystal Structure of Ⅳ Materials[J]. Chinese Journal of Luminescence, 2017,38(9): 1192-1197
杨学弦, 宁杨华, 王小云等. 小尺寸Ⅳ族材料拉曼谱与晶体结构的研究[J]. 发光学报, 2017,38(9): 1192-1197 DOI: 10.3788/fgxb20173809.1192.
YANG Xue-xian, NING Yang-hua, WANG Xiao-yun etc. Raman Spectra and Crystal Structure of Ⅳ Materials[J]. Chinese Journal of Luminescence, 2017,38(9): 1192-1197 DOI: 10.3788/fgxb20173809.1192.
以键弛豫理论和核壳模型为基础,建立尺寸-键参数-拉曼谱三者统一的函数关系式,得到了不同尺寸下的 Ⅳ 族材料键长、键能和配位数。阐明了小尺寸下的Ⅳ族材料拉曼谱发生红移是由于有效配位数缺失引起的。通过这一理论方法可以得到拉曼谱中含有的物理信息,极大地扩展拉曼散射技术的应用范围。
The correlation function of the size-bond parameter-Raman shift was formulated based on the bond order-length-strength (BOLS) correlation and core-shell model. The quantitative information of the bond length
bond energy and the effective atomic coordination number (CN) of the Ⅳ materials was obtained. It is clarified that the size-induced phonon softening arises intrinsically from the undercoordinated atoms. Developed approach empowers the Raman technique in deriving quantitative.
拉曼频移键参数纳米尺寸
Raman shiftbond parametersnano size
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