TY - JOUR
T1 - Formulation of new screen printable PANI and PANI/Graphite based inks
T2 - Printing and characterization of flexible thermoelectric generators
AU - Nayak, Ramakrishna
AU - Shetty, Prakasha
AU - M, Selvakumar
AU - Rao, Ashok
AU - Rao, K. Mohan
N1 - Funding Information:
The authors wish to express their sincere gratitude to the Manipal Institute of Technology, MAHE, Manipal, for their laboratory facility and support to carry out this research work. Authors (Ashok Rao and A. Mohan Rao) acknowledge DST-FIST, Government of India (Grant number FST/PS-I/2017/8), and DAE BRNS, Government of India (Grant number: 2010/34/22/BRNS/1164-28-07-2010).
Funding Information:
The authors wish to express their sincere gratitude to the Manipal Institute of Technology, MAHE, Manipal, for their laboratory facility and support to carry out this research work. Authors (Ashok Rao and A. Mohan Rao) acknowledge DST-FIST, Government of India (Grant number FST/PS-I/2017/8), and DAE BRNS , Government of India (Grant number: 2010/34/22/BRNS/1164-28-07-2010 ) .
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2022/1/1
Y1 - 2022/1/1
N2 - The dearth of information about the fabrication of flexible polyaniline and graphite-based microporous and low-cost thermoelectric generators using screen printing for low-temperature applications has motivated us to undertake this research work. Polyaniline and graphite composite inks were formulated using cellulose acetate as resin and diacetone alcohol as the solvent. In this work, we have studied the influence of ink ingredients on the thermoelectric properties of composite inks. Diacetone alcohol improved the electrical conductivity of polyaniline by 7.9 times. The carrier concentrations and carrier mobility of composite ink were enhanced by 2.8 times. Simultaneously, cellulose acetate increased resistivity and carrier mobility of polyaniline by 13 and 44 times, respectively. Graphite improved the crystallinity but reduced carrier mobility, carrier concentration, and bandgap of the composite inks. Screen-printed porous ink film structure reduced the thermal conductivity of PANI ink by 11 times at 333 K. The maximum Seebeck coefficient and power output exhibited by the fabricated thermoelectric generator were 244.34 μV/K and 4.31 nW, respectively at 77 K. Present work explored fabrication and characterization of low cost, flexible polyaniline and graphite composite ink-based thermoelectric generator with improved Seebeck coefficient and power output for low-level heat energy conversion.
AB - The dearth of information about the fabrication of flexible polyaniline and graphite-based microporous and low-cost thermoelectric generators using screen printing for low-temperature applications has motivated us to undertake this research work. Polyaniline and graphite composite inks were formulated using cellulose acetate as resin and diacetone alcohol as the solvent. In this work, we have studied the influence of ink ingredients on the thermoelectric properties of composite inks. Diacetone alcohol improved the electrical conductivity of polyaniline by 7.9 times. The carrier concentrations and carrier mobility of composite ink were enhanced by 2.8 times. Simultaneously, cellulose acetate increased resistivity and carrier mobility of polyaniline by 13 and 44 times, respectively. Graphite improved the crystallinity but reduced carrier mobility, carrier concentration, and bandgap of the composite inks. Screen-printed porous ink film structure reduced the thermal conductivity of PANI ink by 11 times at 333 K. The maximum Seebeck coefficient and power output exhibited by the fabricated thermoelectric generator were 244.34 μV/K and 4.31 nW, respectively at 77 K. Present work explored fabrication and characterization of low cost, flexible polyaniline and graphite composite ink-based thermoelectric generator with improved Seebeck coefficient and power output for low-level heat energy conversion.
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U2 - 10.1016/j.energy.2021.121680
DO - 10.1016/j.energy.2021.121680
M3 - Article
AN - SCOPUS:85112250704
SN - 0360-5442
VL - 238
JO - Energy
JF - Energy
M1 - 121680
ER -
