Self-Assembled Monolayers of Phosphonic Acids with Enhanced Surface Energy for High-Performance Solution-Processed N-Channel Organic Thin-Film Transistors
Add an O: A new strategy for preparing solution‐processed organic thin‐film transistors (OTFTs) is based on enhancing the surfaceenergy of self‐assembled monolayers (SAMs) by inserting polar oxygen atoms into the long alkyl chain of phosphonicacids. SAMs of these phosphonicacids on a high‐k metal oxide layer lead to solution‐processed n‐channel OTFTs with average field effect mobilities of up to
添加一个O:制备溶液处理的有机薄膜晶体管(OTFT)的新策略是基于通过将极性氧原子插入膦酸的长烷基链中来增强自组装单层(SAM)的表面能。在高k金属氧化物层上的这些膦酸的SAMs导致溶液处理的n沟道OTFT具有平均场效应迁移率高达2.5 cm 2 V -1 s -1和低工作电压。
6,13-Diethynyl-5,7,12,14-tetraazapentacene
作者:Shaobin Miao、Anthony L. Appleton、Nancy Berger、Stephen Barlow、Seth R. Marder、Kenneth I. Hardcastle、Uwe H. F. Bunz
DOI:10.1002/chem.200900324
日期:2009.5.11
A new relative of pentacene: The dialkynylated tetraazapentacene (see figure) was prepared by a two‐step synthesis from the corresponding quinone derivative. The heteroacene is an air‐stable, dark‐blue, crystalline material and is of great interest as a potential organic n‐electron‐transport material.