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2D Chalcogenide Nanoplate Assemblies for Thermoelectric Applications
Dun, Chaochao1; Hewitt, Corey A.1; Li, Qi2; Xu, Junwei1; Schall, Drew C.1; Lee, Hyunsu1; Jiang, Qike3; Carroll, David. L.1
刊名ADVANCED MATERIALS
2017-06-06
DOI10.1002/adma.201700070
29
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
研究领域[WOS]Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
关键词[WOS]FLUORIDE COMPOSITE ; PERFORMANCE ; NANOCOMPOSITES ; BI2TE3 ; BI2SE3 ; FIGURE ; MERIT ; CONDUCTIVITY ; ENHANCEMENT ; FABRICS
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
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/152222
专题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
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Dun, Chaochao,Hewitt, Corey A.,Li, Qi,et al. 2D Chalcogenide Nanoplate Assemblies for Thermoelectric Applications[J]. ADVANCED MATERIALS,2017,29.
APA Dun, Chaochao.,Hewitt, Corey A..,Li, Qi.,Xu, Junwei.,Schall, Drew C..,...&Carroll, David. L..(2017).2D Chalcogenide Nanoplate Assemblies for Thermoelectric Applications.ADVANCED MATERIALS,29.
MLA Dun, Chaochao,et al."2D Chalcogenide Nanoplate Assemblies for Thermoelectric Applications".ADVANCED MATERIALS 29(2017).
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