In-Plane Anisotropic Thermal Conductivity of Few-Layered Transition Metal Dichalcogenide Td-WTe2

doi:10.1002/adma.201804979

	In-Plane Anisotropic Thermal Conductivity of Few-Layered Transition Metal Dichalcogenide Td-WTe2
	Yang, Weihuang 5; Zhou, Jiadong 6; Yu, Peng 6; Zhang, Hongbo 2; Wang, Yanlong 7; Zou, Chenji 2; Zhang, Jing 2; Liu, Sheng 2; Xiong, Qihua 2; Shao, Hezhu 8
刊名	ADVANCED MATERIALS
	2019-02-15
卷号	31 期号:7 页码:8
关键词	2D transition-metal dichalcogenides in-plane anisotropy mean free paths suspended Td-WTe2 thermal conductivity
ISSN号	0935-9648
DOI	10.1002/adma.201804979
通讯作者	Cong, Chunxiao(cxcong@fudan.edu.cn) ; Liu, Zheng(z.liu@ntu.edu.sg) ; Zhang, Hao(zhangh@fudan.edu.cn) ; Yu, Ting(yuting@ntu.edu.sg)
英文摘要	2D Td-WTe2 has attracted increasing attention due to its promising applications in spintronic, field-effect chiral, and high-efficiency thermoelectric devices. It is known that thermal conductivity plays a crucial role in condensed matter devices, especially in 2D systems where phonons, electrons, and magnons are highly confined and coupled. This work reports the first experimental evidence of in-plane anisotropic thermal conductivities in suspended Td-WTe2 samples of different thicknesses, and is also the first demonstration of such anisotropy in 2D transition metal dichalcogenides. The results reveal an obvious anisotropy in the thermal conductivities between the zigzag and armchair axes. The theoretical calculation implies that the in-plane anisotropy is attributed to the different mean free paths along the two orientations. As thickness decreases, the phonon-boundary scattering increases faster along the armchair direction, resulting in stronger anisotropy. The findings here are crucial for developing efficient thermal management schemes when engineering thermal-related applications of a 2D system.
资助项目	Singapore MOE Tier 1[RG199/17] ; National Young 1000 Talent Plan of China ; National Natural Science Foundation of China[61774040] ; National Natural Science Foundation of China[51173081] ; Shanghai Municipal Natural Science Foundation[16ZR1402500] ; MOE Tier 1 grant[RG164/15] ; MOE Tier 2 grant[MOE2016-T2-2-153] ; MOE Tier 2 grant[MOE2015-T2-2-007] ; Singapore National Research Foundation under NRF[NRF-NRFF2013-08] ; Natural Science Foundation of Jiangsu Province[BM2012010] ; Priority Academic Program Development of Jiangsu Higher Education Institutions[YX03001] ; Ministry of Education of China[IRT1148] ; Synergetic Innovation Center for Organic Electronics and Information Displays[61136003] ; Fundamental Studies of Perovskite Solar Cells[2015CB932200]
WOS关键词	BOLTZMANN TRANSPORT-EQUATION ; DENSITY ; SOLVER
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000459724200005
资助机构	Singapore MOE Tier 1 ; Singapore MOE Tier 1 ; National Young 1000 Talent Plan of China ; National Young 1000 Talent Plan of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Municipal Natural Science Foundation ; Shanghai Municipal Natural Science Foundation ; MOE Tier 1 grant ; MOE Tier 1 grant ; MOE Tier 2 grant ; MOE Tier 2 grant ; Singapore National Research Foundation under NRF ; Singapore National Research Foundation under NRF ; Natural Science Foundation of Jiangsu Province ; Natural Science Foundation of Jiangsu Province ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Ministry of Education of China ; Ministry of Education of China ; Synergetic Innovation Center for Organic Electronics and Information Displays ; Synergetic Innovation Center for Organic Electronics and Information Displays ; Fundamental Studies of Perovskite Solar Cells ; Fundamental Studies of Perovskite Solar Cells ; Singapore MOE Tier 1 ; Singapore MOE Tier 1 ; National Young 1000 Talent Plan of China ; National Young 1000 Talent Plan of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Municipal Natural Science Foundation ; Shanghai Municipal Natural Science Foundation ; MOE Tier 1 grant ; MOE Tier 1 grant ; MOE Tier 2 grant ; MOE Tier 2 grant ; Singapore National Research Foundation under NRF ; Singapore National Research Foundation under NRF ; Natural Science Foundation of Jiangsu Province ; Natural Science Foundation of Jiangsu Province ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Ministry of Education of China ; Ministry of Education of China ; Synergetic Innovation Center for Organic Electronics and Information Displays ; Synergetic Innovation Center for Organic Electronics and Information Displays ; Fundamental Studies of Perovskite Solar Cells ; Fundamental Studies of Perovskite Solar Cells ; Singapore MOE Tier 1 ; Singapore MOE Tier 1 ; National Young 1000 Talent Plan of China ; National Young 1000 Talent Plan of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Municipal Natural Science Foundation ; Shanghai Municipal Natural Science Foundation ; MOE Tier 1 grant ; MOE Tier 1 grant ; MOE Tier 2 grant ; MOE Tier 2 grant ; Singapore National Research Foundation under NRF ; Singapore National Research Foundation under NRF ; Natural Science Foundation of Jiangsu Province ; Natural Science Foundation of Jiangsu Province ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Ministry of Education of China ; Ministry of Education of China ; Synergetic Innovation Center for Organic Electronics and Information Displays ; Synergetic Innovation Center for Organic Electronics and Information Displays ; Fundamental Studies of Perovskite Solar Cells ; Fundamental Studies of Perovskite Solar Cells ; Singapore MOE Tier 1 ; Singapore MOE Tier 1 ; National Young 1000 Talent Plan of China ; National Young 1000 Talent Plan of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Municipal Natural Science Foundation ; Shanghai Municipal Natural Science Foundation ; MOE Tier 1 grant ; MOE Tier 1 grant ; MOE Tier 2 grant ; MOE Tier 2 grant ; Singapore National Research Foundation under NRF ; Singapore National Research Foundation under NRF ; Natural Science Foundation of Jiangsu Province ; Natural Science Foundation of Jiangsu Province ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Ministry of Education of China ; Ministry of Education of China ; Synergetic Innovation Center for Organic Electronics and Information Displays ; Synergetic Innovation Center for Organic Electronics and Information Displays ; Fundamental Studies of Perovskite Solar Cells ; Fundamental Studies of Perovskite Solar Cells
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/166004]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Liu, Zheng; Zhang, Hao; Yu, Ting; Cong, Chunxiao
作者单位	1.NPU, SIFE, Xian 710129, Shaanxi, Peoples R China 2.Nanyang Technol Univ, Sch Phys & Math Sci, Div Phys & Appl Phys, Singapore 637371, Singapore 3.Fudan Univ, Dept Opt Sci & Engn, Key Lab Micro & Nano Photon Structures MOE, Shanghai 200433, Peoples R China 4.Fudan Univ, Sch Informat Sci & Technol, State Key Lab ASIC & Syst, Shanghai 200433, Peoples R China 5.Hangzhou Dianzi Univ, Minist Educ, Key Lab RF Circuits & Syst, Hangzhou 310018, Zhejiang, Peoples R China 6.Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore 7.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Chem Lasers, Dalian 116023, Peoples R China 8.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China 9.Nanjing Tech Univ NanjingTech, Key Lab Flexible Elect KLOFE, Nanjing 211800, Jiangsu, Peoples R China 10.Nanjing Tech Univ NanjingTech, IAM, Nanjing 211800, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Yang, Weihuang,Zhou, Jiadong,Yu, Peng,et al. In-Plane Anisotropic Thermal Conductivity of Few-Layered Transition Metal Dichalcogenide Td-WTe2[J]. ADVANCED MATERIALS,2019,31(7):8.
APA	Yang, Weihuang.,Zhou, Jiadong.,Yu, Peng.,Zhang, Hongbo.,Wang, Yanlong.,...&Wu, Lishu.(2019).In-Plane Anisotropic Thermal Conductivity of Few-Layered Transition Metal Dichalcogenide Td-WTe2.ADVANCED MATERIALS,31(7),8.
MLA	Yang, Weihuang,et al."In-Plane Anisotropic Thermal Conductivity of Few-Layered Transition Metal Dichalcogenide Td-WTe2".ADVANCED MATERIALS 31.7(2019):8.