有机半导体薄膜的有序化及其器件应用

Ordering of organic semiconductor films and their applications in devices

近些年来,有机薄膜场效应晶体管(OTFTs)得到了快速的发展,但是载流子在薄膜中的传输机理以及如何有效地通过控制有机半导体层的形貌来构筑高性能的有机薄膜晶体管器件仍然是当前研究的难点.本文从有机共轭小分子半导体材料出发概述了通过不同的加工方式来优化和改善其薄膜的有序性,从而进一步提高载流子在半导体层的传输特性及其场效应性能,为制备高性能的有机半导体薄膜器件提供了新的视角和途径.

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.