Electrical Behavior of Organic Transistors and Circuits

The first studies of organic semiconductors date back nearly 100 years with the observation of photoconductivity in anthracene by Pochettino1 and the study of its dark conductivity by Koenigsberger and Schilling.2 While the physical properties of organic semiconductors have been the subject of intense study since these early findings, it has only been within the last 20 years that organic semiconductors for use as the active layer in organic thin film transistors (OTFTs) have been a topic of study. Despite the recent finding of scientific misconduct of a researcher at Bell Labs investigating single-crystal organic materials and OTFTs3 which has invalidated published results, showing unprecedented behavior in crystalline organic semiconductors (such as, high-temperature superconductivity, quantum Hall effect, ballistic transport, injection lasing, and exceedingly large carrier mobility at low temperatures), their remains tremendous interest in OTFTs, and organic electronics in general.