Abstract: A semiconductor device and method of manufacturing the semiconductor device. The semiconductor device includes: a substrate; an organic semiconductor material coupled to the substrate at an interface therebetween; and an actuator provided for use with the substrate and/or the organic semiconductor. The actuator applies a mechanical force to the substrate and/or the organic semiconductor with which it is used when it is actuated. This mechanical force varies the carrier mobility of the organic semiconductor. The actuator is selected from the group comprising: piezoelectric actuators; piezomagnetic actuators; electrostrictive actuators; magnetostrictive actuators; electrostatic actuators; magnetostatic actuators; shape memory alloy actuators; magnetic shape memory alloy actuators; and electroactive polymer actuators.