Review on Techniques for Thermal Characterization of Graphene and Related 2D Materials

The discovery of graphene and its analog, such as MoS<sub>2,</sub> has boosted research. The thermal transport in 2D materials gains much of the interest, especially when graphene has high thermal conductivity. However, the thermal properties of 2D materials obtained from experiments hav...

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Autores principales:	Jing Liu, Pei Li, Hongsheng Zheng
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	optothermal Raman technique thermal transport 2D materials Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/d706b623c326414080d5749bea804320
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spelling	oai:doaj.org-article:d706b623c326414080d5749bea8043202021-11-25T18:29:48ZReview on Techniques for Thermal Characterization of Graphene and Related 2D Materials10.3390/nano111127872079-4991https://doaj.org/article/d706b623c326414080d5749bea8043202021-10-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/2787https://doaj.org/toc/2079-4991The discovery of graphene and its analog, such as MoS<sub>2,</sub> has boosted research. The thermal transport in 2D materials gains much of the interest, especially when graphene has high thermal conductivity. However, the thermal properties of 2D materials obtained from experiments have large discrepancies. For example, the thermal conductivity of single layer suspended graphene obtained by experiments spans over a large range: 1100–5000 W/m·K. Apart from the different graphene quality in experiments, the thermal characterization methods play an important role in the observed large deviation of experimental data. Here we provide a critical review of the widely used thermal characterization techniques: the optothermal Raman technique and the micro-bridge method. The critical issues in the two methods are carefully revised and discussed in great depth. Furthermore, improvements in Raman-based techniques to investigate the energy transport in 2D materials are discussed.Jing LiuPei LiHongsheng ZhengMDPI AGarticleoptothermal Raman techniquethermal transport2D materialsChemistryQD1-999ENNanomaterials, Vol 11, Iss 2787, p 2787 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	optothermal Raman technique thermal transport 2D materials Chemistry QD1-999
spellingShingle	optothermal Raman technique thermal transport 2D materials Chemistry QD1-999 Jing Liu Pei Li Hongsheng Zheng Review on Techniques for Thermal Characterization of Graphene and Related 2D Materials
description	The discovery of graphene and its analog, such as MoS<sub>2,</sub> has boosted research. The thermal transport in 2D materials gains much of the interest, especially when graphene has high thermal conductivity. However, the thermal properties of 2D materials obtained from experiments have large discrepancies. For example, the thermal conductivity of single layer suspended graphene obtained by experiments spans over a large range: 1100–5000 W/m·K. Apart from the different graphene quality in experiments, the thermal characterization methods play an important role in the observed large deviation of experimental data. Here we provide a critical review of the widely used thermal characterization techniques: the optothermal Raman technique and the micro-bridge method. The critical issues in the two methods are carefully revised and discussed in great depth. Furthermore, improvements in Raman-based techniques to investigate the energy transport in 2D materials are discussed.
format	article
author	Jing Liu Pei Li Hongsheng Zheng
author_facet	Jing Liu Pei Li Hongsheng Zheng
author_sort	Jing Liu
title	Review on Techniques for Thermal Characterization of Graphene and Related 2D Materials
title_short	Review on Techniques for Thermal Characterization of Graphene and Related 2D Materials
title_full	Review on Techniques for Thermal Characterization of Graphene and Related 2D Materials
title_fullStr	Review on Techniques for Thermal Characterization of Graphene and Related 2D Materials
title_full_unstemmed	Review on Techniques for Thermal Characterization of Graphene and Related 2D Materials
title_sort	review on techniques for thermal characterization of graphene and related 2d materials
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d706b623c326414080d5749bea804320
work_keys_str_mv	AT jingliu reviewontechniquesforthermalcharacterizationofgrapheneandrelated2dmaterials AT peili reviewontechniquesforthermalcharacterizationofgrapheneandrelated2dmaterials AT hongshengzheng reviewontechniquesforthermalcharacterizationofgrapheneandrelated2dmaterials
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Review on Techniques for Thermal Characterization of Graphene and Related 2D Materials

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