Symmetric Long Alkyl Chain End-Capped Anthracene Derivatives for Solution-Processed Organic Thin-Film Transistors
作者:Sang Hun Jang、Dae Sung Chung、Jin Young An、II Kang、Hyunjin Kim、Chan Eon Park、Yun-Hi Kim、Soon-Ki Kwon、Sang-Gyeong Lee
DOI:10.1166/jnn.2012.5909
日期:2012.5.1
Three new anthracene derivatives, 2,6-bis(4-decylphenyl)anthracene (DDPAnt), 2-decyl-5-(2-(5-decylthiophen-2-yl)anthracen-6-yl)thiophene (DDTAnt), and 2,6-bis(4-decyloxy phenyl) anthracene (DDPXAnt) were synthesized by Suzuki cross-coupling reaction. The obtained oligomers were characterized by 1H NMR, FT-IR, Mass, UV-visible spectroscopy, cyclovotammetry, differencial scanning calorimetry, and thermogravimetric analysis. The thermal studies show that these oligomers are stable up to 400 °C. The solution processed OTFTs were fabricated using synthesized oligomers by spin-coating and drop casting processes on Si/SiO2. OTFTs based on DDPAnt showed the mobility of 7.6 × 10−3 cm2/Vs and on/off ratio of 105.
通过铃木交叉偶联反应合成了三种新的蒽衍生物:2,6-双(4-癸基苯基)蒽(DDPAnt)、2-癸基-5-(2-(5-癸基噻吩-2-基)蒽-6-基)噻吩(DDTAnt)和 2,6-双(4-癸氧基苯基)蒽(DDPXAnt)。通过 1H NMR、傅立叶变换红外光谱、质谱、紫外-可见光谱、环伏安法、差示扫描量热法和热重分析对得到的低聚物进行了表征。热研究表明,这些低聚物在 400 °C 以下都很稳定。通过在 Si/SiO2 上进行旋涂和滴注工艺,利用合成的低聚物制造出了溶液处理 OTFT。基于 DDPAnt 的 OTFT 显示出 7.6 × 10-3 cm2/Vs 的迁移率和 105 的导通/截止比。