Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 7, Issue 38, Pages 21015-21020Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b07144
Keywords
thermoelectric; fabric; Cu1.75Te nanowire; organic-inorganic composite; flexibility
Funding
- National Natural Science Foundation of China [51572111]
- Program for New Century Excellent Talents in University [NCET-12-0454]
- Program for Young Excellent Talents in Shaanxi Province [2013KJXX-50]
- Fundamental Research Funds for the Central University [XJJ2015104]
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A general approach to fabricate nanowires based inorganic/organic composite flexible thermoelectric fabric using a simple and efficacious five-step vacuum filtration process is proposed. As an excellent example, the performance of freestanding flexible thermoelectric thin film using copper telluride nanowires/polyvinylidene fluoride (Cu1.75Te NWs/PVDF = 2:1) as building block is demonstrated. By burying the Cu1.75Te NWs into the PVDF polymer agent, the flexible fabric exhibits room-temperature Seebeck coefficient and electric conductivity of 9.6 mu V/K and 2490 S/cm, respectively, resulting in a power factor of 23 mu W/(mK(2)) that is comparable to the bulk counterpart. Furthermore, this NW-based flexible fabric can endure hundreds of cycles of bending tests without significant performance degradation.
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