Dramatically enhanced thermoelectric performance of MoS2 by introducing MoO2 nanoinclusions

doi:10.1039/c6ta10219k

	Dramatically enhanced thermoelectric performance of MoS2 by introducing MoO2 nanoinclusions
	Huang, Zhiwei 1,4; Meng, Qing-Long 1; Jiang, Qike 5; Zhuang, Wei 2; Jiang, Peng 1,5; Bao, Xinhe 1,5; Kong, Shuang 1,4; Wu, Tianmin 3; Yuan, Min 1,4
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2017
卷号	5 期号:5 页码:2004-2011
ISSN号	2050-7488
DOI	10.1039/c6ta10219k
文献子类	Article
英文摘要	Two-dimensional transition-metal dichalcogenide semiconductors (TMDCs) with layered structures, such as MoS2, hold great potential to become economic and nontoxic thermoelectric materials. Application of TMDCs is hampered, however, by their insignificant power factors which cancel the advantage of their intrinsically low thermal conductivities along the cross-plane direction and lead to less satisfactory overall thermoelectric performances. Here we report that, by adopting an oxygen doping strategy, the thermoelectric efficiency of MoS2 can be enhanced up to 50 times with the best performance appearing along the cross-plane direction. Our further characterization suggests that this plausible improvement originates from the MoO2 nanoinclusions, which enhance the electrical conductivity and Seebeck coefficient, while suppressing the thermal conductivity at the same time. The unexpected simultaneous enhancement of the electrical conductivity and Seebeck coefficient after doping is explained using an electron relaxation time model. We therefore provide a general strategy towards improving the thermoelectric performance of TMDCs.
WOS关键词	TEMPERATURE-DEPENDENT RAMAN ; SINGLE-LAYER MOS2 ; THERMAL-CONDUCTIVITY ; TRANSPORT-PROPERTIES ; POWER-GENERATION ; MONOLAYER MOS2 ; BULK ; WSE2 ; THERMOPOWER ; DISULFIDE
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000395074300023
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/169592]
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	Zhuang, Wei; Jiang, Peng; Bao, Xinhe
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, CAS Ctr Excellence Nanosci, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China 2.Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China 3.Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Anhui, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Dalian Natl Lab Clean Energy, Dalian 116023, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Huang, Zhiwei,Meng, Qing-Long,Jiang, Qike,et al. Dramatically enhanced thermoelectric performance of MoS2 by introducing MoO2 nanoinclusions[J]. JOURNAL OF MATERIALS CHEMISTRY A,2017,5(5):2004-2011.
APA	Huang, Zhiwei.,Meng, Qing-Long.,Jiang, Qike.,Zhuang, Wei.,Jiang, Peng.,...&Yuan, Min.(2017).Dramatically enhanced thermoelectric performance of MoS2 by introducing MoO2 nanoinclusions.JOURNAL OF MATERIALS CHEMISTRY A,5(5),2004-2011.
MLA	Huang, Zhiwei,et al."Dramatically enhanced thermoelectric performance of MoS2 by introducing MoO2 nanoinclusions".JOURNAL OF MATERIALS CHEMISTRY A 5.5(2017):2004-2011.