Charge transport modelling in organic semiconductors: From diodes to transistors, memories and energy harvesters

Organic semiconductors are playing an increasingly important role for the fabrication of many electronic and optoelectronic devices such as organic light emitting diodes (OLEDs) [1], organic photovoltaics (OPVs) [2], organic thin-film transistors (OTFTs) [3] and organic memories [4]. Amorphous and/or regular assembly of polymers/small molecules can form such materials which typically exhibit complex electronic properties. Thus, a unified, comprehensive and transferable model of charge transport and injection in organic semiconductors is highly desired to help the understanding, development and optimization of organic devices. In this work, we will present the efforts made to identify a consistent scheme for charge transport in organic semiconductors and applications of this model to the description of diodes, resistive memories, OTFTs and OPVs.