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Thermally Driven Large N‐Type Voltage Responses from Hybrids of Carbon Nanotubes and Poly(3,4‐ethylenedioxythiophene) with Tetrakis(dimethylamino)ethylene
Author(s) -
Wang Hong,
Hsu JuiHung,
Yi SuIn,
Kim Suk Lae,
Choi Kyungwho,
Yang Gang,
Yu Choongho
Publication year - 2015
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201502950
Subject(s) - pedot:pss , materials science , poly(3,4 ethylenedioxythiophene) , carbon nanotube , conductive polymer , ethylene , carbon fibers , chemical engineering , nanotechnology , polymer chemistry , polymer , organic chemistry , composite material , composite number , chemistry , catalysis , engineering
Hybrids of carbon nanotubes (CNTs) and poly(3,4‐ethylenedioxythiophene) (PEDOT) treated by tetrakis(dimethylamino)ethylene (TDAE) have large n‐type voltages in response to temperature differences. The reduced carrier concentration by TDAE reduction and partially percolated CNT networks embedded in the PEDOT matrix result in high thermopower and low thermal conductivity. The high electron mobility in the CNTs helps to minimally reduce the electrical conductivity of the hybrid, resulting in a large figure‐of‐merit.