Abstract
With the increase in demand for low-carbon technology, green raw materials, and comfortable heating, academia and industry have paid considerable attention to cellulose-based electrothermal composites. This attention owes to the fact that cellulose is a versatile, abundant, low-cost, and sustainable material with beneficial properties. Here, we develop a novel strategy for fabricating flexible, transparent electrothermal heaters that are composed of both silver nanowire (AgNW)/poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) electrothermal composites and a regenerated cellulose (RC) matrix. The AgNWs were spin-coated onto glass substrates and easily transferred onto an RC surface through the coagulation and regeneration of the cellulose solution. PEDOT:PSS was coated onto the AgNW-coated RC matrix to improve the electrical and electrothermal properties of the film heaters. The PEDOT:PSS/AgNW/RC composite films demonstrated an excellent optical transmittance of 73.8% at 550 nm and a low sheet resistance of 11.2 Ω/sq. These composite heaters also exhibited a rapid heating response, uniform heat distribution, excellent heat generation, and robust structural stability. These electrothermal composites made from earth-abundant, low cost, and recyclable materials have great potential for green, flexible, transparent film heaters.
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Acknowledgments
This research was supported by the R&D Program for Forest Science Technology (Project No. “2023489B10-2325-AA01”) provided by Korea Forest Service (Korea Forestry Promotion Institute), the Bio & Medical Technology Development Program of the National Research Foundation (NRF) supported by the Korean government (MSIT) (No. 2021M3A9I5021437) and by the National Research Foundation of Korea NRF-2020R1A2C1004273.
Funding
This research was funded by the R&D Program for Forest Science Technology (Project No. “2023489B10-2325-AA01”) provided by Korea Forest Service (Korea Forestry Promotion Institute), the Bio & Medical Technology Development Program of the National Research Foundation (NRF) funded by the Korean government (MSIT) (No. 2021M3A9I5021437) and by the National Research Foundation of Korea NRF-2020R1A2C1004273.
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GK: Writing-original draft, Conceptualization, Methodology, Visualization; YK: Visualization; KL: Visualization, Methodology; YJ: Methodology; SL: Data curation; CL: Supervision; JY: Conceptualization, Writing-Editing, Supervision.
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Kwon, G., Ko, Y., Lee, K. et al. Flexible and transparent cellulose-based electrothermal composites for high-performance heaters. Cellulose 31, 335–347 (2024). https://doi.org/10.1007/s10570-023-05665-z
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DOI: https://doi.org/10.1007/s10570-023-05665-z