Electrothermally Regenerable PEDOT:PSS/PVA Composite Films for Solid-State Dehumidification Applications

= 0.94, demonstrating strong moisture uptake in the high-humidity regime. Based on comprehensive performance evaluation, PP6 was used to produce the dehumidification element. The element displayed reversible absorption-desorption during electrothermal regeneration in cycling tests powered by approximately 10 W, confirming the composite's viability via an electro-driven pathway. Overall, this study demonstrates a self-standing PEDOT:PSS-based polymer desiccant that simultaneously achieves humid-state mechanical durability and long-term electrothermal stability, enabling stable low-power regeneration cycling without thermally preheating high-flow-rate return air.