小尺寸Ⅳ族材料拉曼谱与晶体结构的研究

杨学弦; 宁杨华; 王小云; 赵鹤平

doi:10.3788/fgxb20173809.1192

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小尺寸Ⅳ族材料拉曼谱与晶体结构的研究

材料合成及性能 | 更新时间：2020-08-12

- 小尺寸Ⅳ族材料拉曼谱与晶体结构的研究
- Raman Spectra and Crystal Structure of Ⅳ Materials
- 发光学报 2017年38卷第9期页码：1192-1197
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
  
  国家自然科学基金（11602094，11564013，11564012）();湖南省自然科学基金（2015JJ6094）();湖南省教育厅优秀青年项目（15B189）(
- DOI：10.3788/fgxb20173809.1192
  中图分类号： O641
- 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，
扫描看全文
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.

摘要

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。

Abstract

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.

关键词

拉曼频移键参数纳米尺寸

Keywords

Raman shiftbond parametersnano size

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