Presentation Information
[8a-PB2-17]Stabilization of Giant Seebeck Effect in Polymer Semiconductor Thin Films
〇Nagito Banno1, Ryota Fukuzawa1, Hiroaki Benten1, Masakazu Nakamura1 (1.NAIST)
Keywords:
Thermoelectric conversion,polymer
Polymer semiconductor films exhibiting the giant Seebeck effect (GSE) face challenges with transient responses during thermoelectromotive force measurements. Hypothesizing that impurity ion diffusion causes this instability, this study investigated IDT-BT oriented thin films rinsed in ultrapure water at various temperatures. The results showed that while the mean Seebeck coefficient increased with higher rinsing temperatures, the standard error was minimized at 60 °C and became extremely large at 80 °C. These findings indicate that rinsing with appropriately heated ultrapure water reduces water-soluble ionic impurities, successfully stabilizing the thermoelectromotive force.