Ultraflexible PEDOT:PSS/Helical Carbon Nanotubes Film for All-in-One Photothermoelectric Conversion

• DOI: 10.1021/acsami.2c05875
• Publication Date: 2022-05-31T11:55:22Z
• Authors: Xin-zheng Jin; Huan Li; Ying Wang; Zhen-yu Yang; Xiao-dong Qi; Jing-hui Yang; Yong Wang
• Keywords: 02 engineering and technology; 0210 nano-technology

Photothermoelectric (PTE) conversion can achieve the recovery of low-quality light or heat efficiently. Much effort has been devoted to exploitation inorganic heterogeneous asynchronous (separate) PTE system. Here, a full organic film with pseudobilayer architecture (PBA) according homogeneous synchronous (all-in-one) hypothesis was prepared via successive drop-casting PEDOT:PSS/helical carbon nanotube (HCNT) mixture and PEDOT:PSS onto vacuum ultraviolet treated substrate. Our results prove that heptagon–pentagon pairs embedded in HCNTs promote denser arrangement molecular chains PEDOT, which enhances crystallinity affects thermoelectric properties. The weak connection hollow structure inhibit dissipation heat, zT value reaches over 0.01. PBA shows better photothermal performance than neat stably generates temperature difference 25.68 °C without external cooling. A flexible chip demo manufactured, ideal open-circuit voltage (simulated COMSOL) 1.5 mV under NIR stimulation (83.12 mW/cm2), is best reported for an all-in-one device, real maximum output power 2.55 nW (166.01 mW/cm2). incredible ultraflexibility, its inner resistance changes less 1.42% after 10000 bending cycles displays ultrahigh stability (similarity >90%) continuous periodic output. work fills deficit research composite preliminary attempt ultraflexible integrated design.