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Thermal Conductivity of Polythiophene Doped With Iodine

Author Affiliations

  • 1Electronic Science Department, H.P.T. Arts and R. Y. K. Science College, Nasik-422 005, India
  • 2Dept. of Physics, Institute of Science, Civil Lines, Nagpur – 440 001, India
  • 3Nowrosjee Wadia College, Chemistry Department, Pune-411001, India

Res. J. Material Sci., Volume 4, Issue (6), Pages 1-5, July,16 (2016)


Polythiophene (PT) was chemically synthesized, undoped and then re-doped using iodine. FTIR analysis confirmed that synthesized sample was polythiophene and was doped by iodine as desired. XRD analysis was used to calculate crystallinity. There was decrease in crystallinity due to doping. D.C.electrical conductivity increased by order of eight. Log σ versus 1/T graphs showed semiconducring nature of all samples. Thermal conductivity (κ) measurements of undoped and doped samples were carried out, using indigenously designed instrument similar to Lee’s method. Thermal conductivity of undoped polythiophene at room temperature (303 K) is 7.367 X 10-5 Cal/cm/sec/k. Thermal conductivity increases with increase in temperature.


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