Low Thermal Conductivity of Paperclip-Shaped Graphene Superlattice Nanoribbons

doi:10.1088/0256-307X/32/9/096501

Chin. Phys. Lett.

2015, Vol. 32

Issue (09): 096501 DOI: 10.1088/0256-307X/32/9/096501

CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES

Low Thermal Conductivity of Paperclip-Shaped Graphene Superlattice Nanoribbons

LU Xing, ZHONG Wei-Rong^**

Department of Physics and Siyuan Laboratory, College of Science and Engineering, Jinan University, Guangzhou 510632

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LU Xing, ZHONG Wei-Rong 2015 Chin. Phys. Lett. 32 096501

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Abstract We design some graphene superlattice structures with ultra-low thermal conductivity 121 W/mK, which is only 6% of the straight graphene nanoribbons. The thermal conductivity of graphene superlattice nanoribbons (GSNRs) is investigated by using molecular dynamics simulations. It is reported that the thermal conductivity of graphene superlattice nanoribbons is significantly lower than that of the straight graphene nanoribbons (GNRs). Compared with the phonon spectra of straight GNRs, GSNRs have more forbidden bands. The overlap of phonon spectra between two supercells is shrinking.

Received: 01 June 2015 Published: 02 October 2015

PACS:	65.80.-g	(Thermal properties of small particles, nanocrystals, nanotubes, and other related systems)
	63.22.Rc	(Phonons in graphene)
	61.48.-c	(Structure of fullerenes and related hollow and planar molecular structures)

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https://cpl.iphy.ac.cn/10.1088/0256-307X/32/9/096501 OR https://cpl.iphy.ac.cn/Y2015/V32/I09/096501

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	ZHONG Wei-Rong

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