Study of electrical and thermal conductivity of Doped
Poly (3,4 –ethylenedioxythiophene)
Accepted 19th
March, 2022
V. S. Bhavale2, S. S. Gadekar2,
K.V. Ghodke1 and A. B. Chourasia*
1,2
1Electronic Sci ence Dept., H.P.T.
Arts and R.Y.K. Science College, Nashik-422 005,
India 2Physics, Department of Physics H.P.T.
Arts and R.Y.K. Science College, Nasik-422 005,
India.
Poly (3,4-ethylenedoixythiophene) (PEDOT) was
chemically synthesized and doped using FeCl3 and
Camphor Sulfonic Acid (CSA). FTIR results
confirmed that synthesized polymer was PEDOT and
getting doped with FeCl3 and CSA as desired. XRD
analysis indicated that crystal structure gets
modified after doping and was also used to
calculate crystallinity of samples. It increases
after doping by FeCl3, whereas it reduces after
doping by CSA. Electrical conductivity (σ)
measurements were carried out by four probe
method. It was found to be 3.41 X 10-3 S/cm for
undoped sample and it increases nearly hundred
times after doping. Log σ versus 1/T graph was
plotted and it showed metallic nature of undoped
PEDOT above 308°K and semiconducting nature of
both doped samples from room temperature to
383°K. Thermal conductivity measurements were
carried out using indigenously designed
instrument similar to the Lee’s method. Thermal
conductivity of all samples was low but it
increases after doping and with increase in
temperature.
This is an open access article
published under the terms of the
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reproduction in any medium, provided the original work is
properly cited.
Cite this article as:
Bhavale VS,
Gadekar SS, Ghodke KV, Chourasia AB (2022). Study of electrical and
thermal conductivity of Doped Poly (3,4 –ethylenedioxythiophene). Acad. J. Sci.
Res. 10(5): 071-077.
