Thermoelectric power enhancement of PEDOT:PSS in high-humidity conditions
Thermoelectric power enhancement of PEDOT:PSS in high-humidity conditions
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DOI:
10.7567/apex.7.031601
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发表时间:
2014-03-01
影响因子:
2.3
通讯作者:
Ishida, Takao
中科院分区:
文献类型:
--
作者:
Wei, Qingshuo;Mukaida, Masakazu;Ishida, Takao
We report an increase in the thermoelectric power factor of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) from 23 +/- 5 to 225 +/- 130 mu W/(m.K-2) in high-humidity conditions. This enhancement was caused mainly by an increase in the apparent Seebeck coefficient, which could be related to morphological change after water absorption or electrochemical reaction of PEDOT in air. Our results demonstrate a positive effect of water in the PEDOT:PSS system and indicate the need for well-controlled measurement conditions, particularly humidity, in evaluating the performance of conducting organic materials. (C) 2014 The Japan Society of Applied Physics