Advanced green electronics: Highly conductive micropatterned PEDOT:PSS /regenerated cellulose composites
발표자
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초록
내용
Conductive micropatterns on biodegradable substrates are key components for the development of green energy storage devices. In this study, we report a facile strategy for producing highly conductive and flexible poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) micropatterns on regenerated cellulose (RC) substrates via a vacuum-assisted filtration with a 3D printed shadow mask and dimethyl sulfoxide (DMSO) post-treatment. The use of the shadow mask proves to be an effective method to create various PEDOT:PSS micropatterns on RC substrates (PEDOT:PSS/RCs). The PEDOT:PSS/RCs show a sheet resistance of 4.2 Ω/cm2, an electrical conductivity of 327 S/cm, good adhesion stability and bending durability. Furthermore, the PEDOT:PSS/RCs were successfully used for fabricating a solid-state micro-supercapacitor (MSC) device. The MSC sandwich structure based on PEDOT:PSS/RCs exhibits a specific capacitance of 65.55 mF/cm2 and an excellent cycling stability over 4000 cycles.