Complementary circuits based on solution processed low-voltage organic field-effect transistors

The field of organic electronics is advancing quickly towards ultra low-cost, low-end applications and is expected to provide the necessary technology required for flexible/printed electronics. Here we address the need for solution processed low-voltage complementary logic in order to reduce power consumption of organic circuits and hence enable their use in portable, i.e. battery-powered applications. We demonstrate both p- and n-channel solution processed high performance organic field-effect transistors that operate at voltages below vertical bar 1.5 vertical bar V. The reduction in operating voltage is achieved by implementing ultrathin gate dielectrics based on solution processed self-assembled monolayers. This work demonstrates the feasibility of fabricating low-voltage complementary organic circuits by means of solution processing. (C) 2009 Elsevier B.V. All rights reserved.