Charge carrier transport and d.c. conductivity in thin polycrystalline p-terphenyl films2 |
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Authors: | A Lipiński W Mycielski J Świa̧tek |
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Institution: | Institute of Physics, Technical University of ?ód?, ul. Wólczańska 219, 93-005 ?ód?, Poland |
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Abstract: | The electrical conductivity and charge carrier mobility in thin polycrystalline p-terphenyl layers have been measured. The transport and conductivity were interpreted in terms of a hopping mechanism. The activation energies of mobility and conductivity were obtained, and the density of states in the vicinity of the Fermi level 1020 cm?3 eV?1 was estimated. The height of the potential barrier around the impurity levels changed according to the Poole-Frenkel effect. |
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