Novel Semiconductors Based on Functionalized Benzo[<i>d</i>,<i>d</i>′]thieno[3,2-<i>b</i>;4,5-<i>b</i>′]dithiophenes and the Effects of Thin Film Growth Conditions on Organic Field Effect Transistor Performance
作者:Jangdae Youn、Ming-Chou Chen、You-jhih Liang、Hui Huang、Rocio Ponce Ortiz、Choongik Kim、Charlotte Stern、Tarng-Shiang Hu、Liang-Hsiang Chen、Jing-Yi Yan、Antonio Facchetti、Tobin J. Marks
DOI:10.1021/cm101435s
日期:2010.9.14
A series of benzo[d,d]thieno[3,2-b;4,5-b]dithiophene (BTDT) derivatives, end-functionalized with phenyl (P) and benzothiophenyl (BT), were synthesized and characterized. A facile, one-pot synthesis of BTDT was developed which enables the efficient realization of a new BTDT-based semiconductor series for organic thin-film transistors (OTFTs). The crystal structure of P-BTDT was determined via single-crystal
合成并表征了一系列苯并[ d,d ]噻吩并[3,2- b; 4,5- b ]二噻吩(BTDT)衍生物,它们被苯基(P)和苯并噻吩基(BT)末端官能化。开发了一种简单的BTDT一锅法合成方法,该方法能够有效实现用于有机薄膜晶体管(OTFT)的基于BTDT的新型半导体系列。通过单晶X射线衍射确定P-BTDT的晶体结构。介电表面处理方法,衬底温度和沉积通量速率序列的各种组合对器件性能具有重要影响。在十八烷基三氯硅烷(OTS)处理的SiO 2上沉积的薄膜在适当调整基板温度和沉积通量速率的情况下,基板可以在高薄膜结晶度和良好的薄膜颗粒互连性之间取得有效的折衷,从而获得良好的OTFT性能,迁移率大于0.70 cm 2 V -1 s -1且I on / I off更大比10 8。