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Raman Characterization on Two-Dimensional Materials-Based Thermoelectricity.

Zuoyuan Dong1, Hejun Xu2, Fang Liang3

  • 1Shanghai Key Laboratory of Multidimensional Information Processing, Department of Electronic Engineering, East China Normal University, Shanghai 200241, China. 51181213021@stu.ecnu.edu.cn.

Molecules (Basel, Switzerland)
|December 29, 2018
PubMed
Summary
This summary is machine-generated.

Measuring thermoelectric (TE) performance in two-dimensional (2D) materials is challenging. Raman spectroscopy offers a promising, non-destructive method to accurately assess thermal conductivity and TE figure of merit (ZT) for these advanced materials.

Keywords:
Raman spectroscopygraphenethermal conductivitythermoelectricitytwo-dimensional materials

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Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Nanotechnology

Background:

  • Two-dimensional (2D) materials offer unique properties for enhanced thermoelectric (TE) performance.
  • Accurate measurement of TE performance, particularly the figure of merit (ZT), remains a significant experimental challenge for 2D materials.
  • Current methodologies lack universality and face difficulties in sample control and apparatus requirements.

Purpose of the Study:

  • To review the current state of thermoelectricity and 2D materials.
  • To introduce Raman spectroscopy as a powerful characterization tool for 2D materials.
  • To explore the application of Raman spectroscopy for measuring thermal conductivity and evaluating TE performance in 2D materials.

Main Methods:

  • Review of existing literature on 2D materials, thermoelectricity, and Raman spectroscopy.
  • Discussion of Raman spectroscopy's principles and its application in probing material properties.
  • Analysis of thermal conductivity measurement techniques for 2D materials using Raman spectroscopy.

Main Results:

  • Raman spectroscopy is a rapid, non-destructive technique suitable for characterizing 2D materials.
  • It can be effectively employed to measure the thermal conductivity of 2D materials.
  • This technique shows potential as a systematic method for evaluating TE performance.

Conclusions:

  • Raman spectroscopy is a versatile tool for 2D material characterization.
  • Its application in measuring thermal conductivity paves the way for systematic TE performance evaluation.
  • Future prospects include utilizing Raman spectroscopy for determining the ZT and advancing 2D material-based thermoelectric devices.