Anionic conduction mediated giant n-type Seebeck coefficient in doped Poly(3-hexylthiophene) free-standing films
نویسندگان
چکیده
The present work demonstrates a totally radical change in conduction nature from typical p-type to n-type through ionic transport FeCl3 doped free-standing poly(3-hexylthiophene) (P3HT) films. thermodiffusion of Cl? ions generated giant negative Seebeck coefficient (?2.7 mV/K) and moderately high electrical conductivity (?1 S/cm); an unprecedented level polymers. A thermoelectric power generator fabricated using these P3HT films delivered output 25 ?W with open circuit voltage 128 mV for ?T 46 °C. Though continuous operation reduced the due inability pass interface between metallic contact, yet was found be quite stable over period 1 h under load. With such coefficient, show great potential energy harvesting intermittent heat sources as well supercapacitor charging futuristic storage devices.
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ژورنال
عنوان ژورنال: Materials Today Physics
سال: 2021
ISSN: ['2542-5293']
DOI: https://doi.org/10.1016/j.mtphys.2020.100307