2D Chalcogenide Nanoplate Assemblies for Thermoelectric Applications

doi:10.1002/adma.201700070

	2D Chalcogenide Nanoplate Assemblies for Thermoelectric Applications
	Jiang, Qike 3; Dun, Chaochao 1; Hewitt, Corey A.1; Li, Qi 2; Xu, Junwei 1; Schall, Drew C.1; Lee, Hyunsu 1; Carroll, David. L.1
刊名	ADVANCED MATERIALS
	2017-06-06
卷号	29
DOI	10.1002/adma.201700070
英文摘要	Engineered atomic dislocations have been used to create a novel, Sb2Te3 nanoplate-like architecture that exhibits a unique antisymmetric chirality. High-resolution transmission electron microscopy (HRTEM) coupled with atomic force microscopy and X-ray photoelectron spectroscopy reveals the architectures to be extremely well ordered with little residual strain. Surface modification of these topologically complex macrostructures (approximate to 3 mu m) has been achieved by direct growth of metallic Ag nanoparticles onto the edge sites of the Sb2Te3. Again, HRTEM shows this nanoparticle decoration to be atomically sharp at the boundaries and regularly spaced along the selvedge of the nanostructure. Transport experiments of densified films of these assemblies exhibit marked increases in carrier density after nanoengineering, yielding 3.5 x 10(4) S m(-1) in electrical conductivity. An increased Seebeck coefficient by 20% in parallel with electrical conductivity is also observed. This gives a thermoelectric power factor of 371 mu W m(-1) K-2, which is the highest value for a flexible, freestanding film to date. These results suggest an entirely new direction in the search for wearable power harvesters based on topologically complex, low-dimensional nanoassemblies.
语种	英语
WOS记录号	WOS:000402518900029
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/152222]
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
作者单位	1.Wake Forest Univ, Dept Phys, Ctr Nanotechnol & Mol Mat, Winston Salem, NC 27109 USA 2.IBM TJ Watson Ctr, Phys Sci Dept, Yorktown Hts, NY 10598 USA 3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Qike,Dun, Chaochao,Hewitt, Corey A.,et al. 2D Chalcogenide Nanoplate Assemblies for Thermoelectric Applications[J]. ADVANCED MATERIALS,2017,29.
APA	Jiang, Qike.,Dun, Chaochao.,Hewitt, Corey A..,Li, Qi.,Xu, Junwei.,...&Carroll, David. L..(2017).2D Chalcogenide Nanoplate Assemblies for Thermoelectric Applications.ADVANCED MATERIALS,29.
MLA	Jiang, Qike,et al."2D Chalcogenide Nanoplate Assemblies for Thermoelectric Applications".ADVANCED MATERIALS 29(2017).