Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 11, Issue 13, Pages 12819-12829Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b01718
Keywords
PEDOT:PSS; copper selenide; nanowire; composite; thermoelectric; flexible
Funding
- Key Program of National Natural Science Foundation of China [51632010, 51632005]
- National Natural Science Foundation of China [51702150]
- National Basic Research Program of China (973 Program) [2013CB632500]
- foundation of the State Key Lab of Advanced Technology for Material Synthesis and Processing (Wuhan University of Technology)
- Innovation Commission of Shenzhen Municipality [KQTD2016022619565991, KQCX2015033110182370]
Ask authors/readers for more resources
Herein, poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) coated Cu Sey (PC-CuxSey) nanowires are prepared by a wet-chemical method, and PEDOT:PSS/CuxSey nanocomposite films on flexible nylon membrane are fabricated by vacuum assisted filtration and then cold-pressing. XRD analysis reveals that the CuxSey with different compositions can be obtained by adjusting the nominal Cu/ Se molar ratios of their sources. For the composite film starting from a Cu/Se nominal molar ratio of 3, an optimized power factor of,,,270.3 /../W/mK2 is obtained at 300 K. Moreover, the film exhibits a superior flexibility with 85% of the original power factor retention after bending for 1000 cycles around a rod with a diameter of 5 mm. TEM and STEM observations of the focused ion beam (FIB) prepared sample reveal that it is mainly attributed to a synergetic effect of the nylon membrane and the composite film with nanoporous structure formed by the intertwined nanowires, besides the intrinsic flexibility of nylon. Finally, a thermoelectric prototype composed of nine legs of the optimized hybrid film generates a voltage and a maximum power of 15 mV and 320 nW, respectively, at a temperature gradient of 30 K. This work offers an effective approach for high TE performance inorganic/ polymer composite film for flexible TE devices.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available