Bipolar Conductivity In Nanocrystallized Tio2

This study calculated the contribution of electrons and holes to TiO2 conductivity in Si/TiO2/Ni structures by conducting experiments on the injection of minority carriers from n- and p-type silicon. Results show that electrons and holes contribute to the conductivity of TiO2, enabling two-band conductivity. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4737016]