Abstract
Organic-inorganic multilayer structures of the silicon∕polymer∕metal type have been fabricated. The current-voltage characteristics of these structures versus temperature are measured. The obtained results are treated within different models of charge transport such as Richardson-Schottky thermionic emission, Fowler-Nordheim tunneling, and Pool-Frenkel and hopping mechanisms. The conclusions about the mechanisms of charge transport at different electric fields and temperatures have been made. The Richardson-Schottky model is in good quantitative agreement with the experimental data in the case of the metal-polymer interface with the energy barriers of 0.26–0.10eV. The charge transport in the polymer is explained by the hopping mechanism near the Fermi level with the activation energies being of 0.01–0.04eV.
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