Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 1, Pages 1077-1083Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b14820
Keywords
flexible film heater; Ag NW; graphene-EC; PEDOT:PSS
Funding
- Natural Science Foundation of China (NSFC) [61774124, 51572216, 61604122]
- NSFC [91323303]
- Industrial Science and Technology Research project in Shaanxi province [2015GY005]
- China Postdoctoral Science Foundation [2017M613139]
- 111 Program [B14040]
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To optimize the performance of silver nanowire (Ag NW) film heaters and explore the effect of graphene on a film, we introduced poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) and graphene modified with ethyl cellulose (graphene-EC) into the film. The high-quality and well-dispersed graphene-EC was synthesized from graphene obtained by electrochemical exfoliation as a precursor. The transparent film heaters were fabricated via spin-coating. With the assistance of graphene-EC, the stability of film heaters was greatly improved, and the conductivity was optimized by adjusting the Ag NW concentration. The film heaters exhibited a fast and accurate response to voltage, accompanied by excellent environmental endurance, and there was no significant performance degradation after being operated for a long period of time. These results indicate that graphene-EC plays a crucial role in optimizing film stability and heat dispersion in the film. The Ag NW/PEDOT:PSS-doped graphene-EC film heaters show a great potential in low-cost indium-tin-oxide-free flexible transparent electrodes, heating systems, and transparent film heaters.
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