Enhanced Triboelectric and Flame-Retardant Performances through Self-Assembled Interlayers of Conjugated Polymers
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Triboelectric nanogenerators (TENGs) offer a promising approach to converting mechanical energy into electricity. This study introduced a flexible and scalable charge trapping interlayer of conjugated polymeric film between the triboelectric layer and the electrode using continuous layer-by-layer assembly. The optimal ayout was 2 and 8 bilayers of intermediate layer and triboelectric layer, respectively. The TENG achieved the highest output voltage of 180 V and current of 9 µA against negative PDMS. This represents 63.6% and 20% increases in voltage and current due to the surface charge density as high as 61.5 µC/m2. Also, we investigated the flame-retardant properties of conjugated polymeric coating on polyurethane foam (PUF) by open flame test. The coated PUF exhibited lower heat release capacity and thermal degradation with more residue formation. This study exhibits sustainable fabrication method for portable electronics, adding a valuable contribution to flame-retardant materials.