Ordering of organic semiconductor films and their applications in devices

Recently, organic semiconductors have received remarkable attention in both of fundamental studies and application science. Nevertheless, charge carrier mobilities of organic field-effect transistors (OFETs) are generally very low due to the poor molecular packing and lack of macroscopic order in solid state. So, it is crucial for controlling molecular orders/orientation to understand the charge carrier transport mechanism as well as fabricate high performance OFETs. In this paper, we will highlight the representative and effective processing approaches for ordering molecular orders/orientation in organic thin films, in order to valuable guideline and perspectives for high organic thin film transistors.