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Synthesis and thermoelectric characterization of bulk-type tellurium nanowire/polymer nanocomposites

Title
Synthesis and thermoelectric characterization of bulk-type tellurium nanowire/polymer nanocomposites
Author
좌용호
Keywords
CONDUCTIVE POLYMER COMPOSITES; PERCOLATION-THRESHOLD; CARBON NANOTUBE; BEHAVIOR; NANOFIBERS; THICKNESS; FILMS; POWER
Issue Date
2017-11
Publisher
SPRINGER
Citation
JOURNAL OF MATERIALS SCIENCE, v. 52, No. 21, Page. 12724-12733
Abstract
A simple method to fabricate three-dimensionally (3-D) aligned thermoelectric nanowires attached polymer particle was demonstrated by combination of solution casting of thermoelectric nanostructures (e.g., tellurium nanowires (Te NWs)) on the surface of thermoplastic polymer (e.g., poly(methyl methacrylate (PMMA)) microbeads followed by hot compaction of thermoplastic matrix. The percolation threshold of composite with 3-D assembled Te NWs (i.e., 3.45 vol%) significantly was lower than that of a randomly dispersed Te NWs (i.e., 5.26 vol%), which resulted in an order of magnitude greater thermoelectric figure of merit (ZT of 2.8 x 10(-3)) compared to randomly dispersed Te NWs in PMMA matrix (ZT of 6.4 x 10(-4)) at room temperature by enhancing the electrical conductivity without increasing thermal conductivity.
URI
https://link.springer.com/article/10.1007/s10853-017-1384-zhttps://repository.hanyang.ac.kr/handle/20.500.11754/72645
ISSN
0022-2461; 1573-4803
DOI
10.1007/s10853-017-1384-z
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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