Temperature dependence of Hall effects in organic thin-film transistors on plastic films

Abstract

The authors investigated the temperature dependence of Hall effects on polycrystalline pentacene thin-film transistors manufactured on plastic base films. The temperature dependence of the charge amounts evaluated from the Hall effect measurements is systematically compared with that evaluated from capacitance-voltage (CV) measurements. Our result indicates that the conduction carriers are dominated by hopping between polycrystalline grain boundaries below 260K and tend to be delocalized above 260K.