Development of Solution-Processed Organic Semiconductor Thin Films

Abstract

AbstractIn recent years, organic thin film transistors have gradually occupied most of the market, and they have played a huge role in the fields of flexible wearable electronics, flexible biosensors, organic light-emitting diodes, and non-volatile memories. Organic semiconductor layers act as a major component of thin-film transistors, which can be printed by roll-to-roll at room temperature for large-area preparation on flexible substrates. However, in the process of preparing thin films by solution method, it is necessary to pay attention to how to control the surface morphology of organic semiconductor thin films and the nucleation and growth of crystals. Owing to the morphology of the film and the growth of crystals determine the performance of organic thin film transistors. Therefore, in this small review, we will concentrate on the preparation of organic semiconductor thin films by solution-processed in recent studies by each team, and briefly evaluate the advantages and disadvantages of the preparation method, as well as the prospects for the future research process of organic semiconductor layers. It can be anticipated that our understanding of these method will lay an important foundation for the future preparation of low-cost, high-performance flexible printed electronic devices.KeywordsSolution processOrganic thin film transistorOrganic semiconductorMobility