Functionalized Poly(3,4-ethylenedioxy bithiophene)
Films for Tuning Electrochromic and Thermoelectric Properties
Version 3 2018-02-09, 17:21
Version 2 2017-10-17, 12:15
Version 1 2017-09-25, 15:46
Posted on 2018-02-09 - 17:21
Conductive thiophene-based
polymers have garnered great attention
for use in organic electron materials such as electrochromic and thermoelectric
materials. However, they suffer from poor electron transport properties
and long-term stability, leading to limited development eventually.
Here, we proposed a strategy of functionalized thiophene-based polymers
with oligo(ethylene glycol) or alkyl side chains and synthesized a
series of poly(3,4-ethylenedioxy bithiophene)s (PEDTs) to tune their
electrochromic and thermoelectric properties. An alkyl group bearing
electronic ability at the thiophene ring effectively achieved a large
increase in the electrical conductivity with nearly invariable Seebeck
coefficient, resulting in an enhancement by 1 order of magnitude for
the thermoelectric power factor. Moreover, the electrochromic properties
of functionalized PEDTs gained an effective improvement in the optical
contrast and coloration efficiency as well as stability with multicolor
changes between neutral and oxidized states. The functionalized PEDTs
can be proposed as an alternative strategy to tune the electrochromic
and thermoelectric properties for organic polymer materials.
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Hu, Yongjing; Liu, Xiaofang; Jiang, Fengxing; Zhou, Weiqiang; Liu, Congcong; Duan, Xuemin; et al. (2017). Functionalized Poly(3,4-ethylenedioxy bithiophene)
Films for Tuning Electrochromic and Thermoelectric Properties. ACS Publications. Collection. https://doi.org/10.1021/acs.jpcb.7b05217
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AUTHORS (7)
YH
Yongjing Hu
XL
Xiaofang Liu
FJ
Fengxing Jiang
WZ
Weiqiang Zhou
CL
Congcong Liu
XD
Xuemin Duan
JX
Jingkun Xu