基于拉曼光谱和光学二次谐波的二硒化锡结构研究

doi:10.3976/j.issn.1002-4026.2017.01.005

山东科学 ›› 2017, Vol. 30 ›› Issue (1): 26-32.doi: 10.3976/j.issn.1002-4026.2017.01.005

基于拉曼光谱和光学二次谐波的二硒化锡结构研究

张帅^1,2，石颖¹，时佳²，孙敏¹，吴倩¹，刘新风^2*，刘玫^1,3*

1.山东师范大学物理与电子科学学院，山东济南 250014； 2.国家纳米科学中心中科院纳米科学卓越创新中心纳米标准与检测重点实验室，北京 100190；
3.山东师范大学材料与清洁能源研究院，山东济南 250014

收稿日期:2016-09-05 出版日期:2017-02-20 发布日期:2017-02-20
通信作者: 刘玫，副教授，硕士生导师，研究方向为二维材料结构与物性研究。E-mail: liumei@sdnu.edu.cn 刘新风，研究员，博士生导师，研究方向为超快光学、非线性光学和纳米光子学。E-mail：liuxf@nanoctr.cn E-mail:liumei@sdnu.edu.cn;liuxf@nanoctr.cn
作者简介:张帅（1991—），男，硕士研究生，研究方向为半导体材料制备和光电性能研究。
基金资助:
国家自然科学基金（61307120）; 科技部国家重点研发计划(2016YFA0200700)

Structural studieson Raman spectroscopy and optical second harmonic generation based tin diselenide

ZHANG Shuai1,2, SHI Ying1 , SHI Jia2, SUN Min1，WU Qian1，LIU Xin-feng 2*, LIU Mei1，3*

1. School of Physics and Electronics, Shandong Normal University, Jinan 250014, China; 2. CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China; 3. Institute of Materials and Clean Energy, Shandong Normal University, Jinan, 250014, China

Received:2016-09-05 Online:2017-02-20 Published:2017-02-20

摘要/Abstract

摘要：

二维层状半导体材料，尤其是少数原子层时，其光电性质与晶格结构密切相关，采用合适的表征方法是关键。本文通过使用机械剥离的方法，得到了不同层数的二硒化锡，并利用光学二次谐波和拉曼光谱的表征研究了其晶体结构的性质。通过二次谐波准确确定了二硒化锡的晶轴，分析了厚度对二次谐波的影响，为确定材料的晶格结构提供了一种纯光学的手段，同时为发现二硒化锡其他非线性光学性质提供了可能性。通过拉曼光谱，发现二硒化锡层间振动模式对厚度和温度变化均较为敏感，表明二硒化锡可应用于大范围内温度的原位监测。

关键词: 二硒化锡, 二次谐波, 晶格结构, 拉曼光谱

Abstract:

The photoelectric properties of twodimensional layered semiconductor materials, especially for those with a few atomic layers, are closely related to their crystal structures. Thus, the critical question is to select the proper characterization. In this article, the tin diselenide with different layers has been obtained by means of mechanical exfoliation, and the characteristics of the crystal structure have been studied by optical second harmonic generation and Raman spectrum. By using second harmonic generation, the crystal axis of tin diselenide was confirmed accurately and the effect of different thickness on second harmonic generation was analyzed, providing a purely optical method of determining the orientation of crystallographic axes, as well as offering the possibility to discover other nonlinear optical properties of tin diselenide. By Raman spectroscopy, it is found that the interlayer vibration mode was sensitive to the changes of thickness and temperature, thus tin diselenide could be applied to the temperature detection in situ within a large range.

Key words: Raman spectroscopy, tin diselenide, second harmonic generation, crystal structure

中图分类号:

O482.3

张帅，石颖，时佳，孙敏，吴倩，刘新风，刘玫. 基于拉曼光谱和光学二次谐波的二硒化锡结构研究[J]. 山东科学, 2017, 30(1): 26-32.

ZHANG Shuai, SHI Ying,SHI Jia, SUN Min，WU Qian，LIU Xin-feng,LIU Mei . Structural studieson Raman spectroscopy and optical second harmonic generation based tin diselenide[J]. SHANDONG SCIENCE, 2017, 30(1): 26-32.

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基于拉曼光谱和光学二次谐波的二硒化锡结构研究

Structural studieson Raman spectroscopy and optical second harmonic generation based tin diselenide

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