https://doi.org/10.1140/epjp/s13360-022-03451-7
Regular Article
Thermoelectric performance of (±) Camphor-10-sulfonic acid doped polyaniline/graphitic carbon nitride composite films
Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, 110016, New Delhi, India
d
nkhare@physics.iitd.ernet.in
Received:
1
September
2022
Accepted:
2
November
2022
Published online:
16
November
2022
Polyaniline (PANI) has been considered a promising candidate for flexible thermoelectric devices because of its high electrical conductivity, stability, and low thermal conductivity. However, the low Seebeck coefficient impedes its practical application. In this report, we have synthesized flexible composite films of ( ±) Camphor-10-sulfonic acid (CSA) doped PANI (PANI-CSA) with varying concentrations of graphitic carbon nitride (g-C3N4) and studied their thermoelectric properties. At 363 K, a power factor of about 3 μWm−1 K−2 in PANI-CSA with 20 wt.
g-C3N4 is obtained, which is about 3 times higher as compared to the pristine PANI-CSA sample. This enhanced power factor is due to the enhanced Seebeck coefficient in this sample due to the enhanced carrier energy filtering effect at the interfaces of the PANI-CSA and g-C3N4.
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