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TSDC; PS; naphthalene; thermo-electrets; glass transition temperature (𝑇_g).

The electrical conductivity of naphthalene doped polystyrene (PS) films (≈ 61.58 𝜇m thick) was studied as a function of dopant concentration and temperature. The formation of charge transfer (CT) complexes and strong concentration dependence of carrier mobility point out that the current carriers are transported through doped polymer system via hopping among sites associated with the dopant molecules. The activation energy, 𝐸_a, was calculated from the graph of log𝜎vs 10³/𝑇 plot within low and high temperature regions.

V S Sangawar¹ R J Dhokne¹ A U Ubale¹ P S Chikhalikar¹ S D Meshram²

1. PG Department of Physics, Govt. Vidarbha Institute of Science and Humanities, Amravati 444 604, India
2. R.D.I.K. College, Badnera 444 701, India

Manuscript received

24 July 2006

Manuscript revised

18 September 2006