作者:Michael Roth、Marcus Ahles、Christian Gawrisch、Thorsten Schwalm、Roland Schmechel、Christian Melzer、Heinz von Seggern、Matthias Rehahn
DOI:10.1002/chem.201702382
日期:2017.9.27
Efficient and versatile synthetic access to rodlike tetracene derivatives was developed by means of Diels–Alder cycloaddition, halogenation, halogen–metal exchange, and transition metal mediated coupling reactions. Herein, the synthesis and structural, electrical, and charge‐transport properties of three of the resulting materials, namely, 2‐(tetracen‐2‐yl)tetracene, 1,4‐bis(2‐tetracenyl)benzene, and
通过狄尔斯-阿尔德环加成,卤化,卤素-金属交换和过渡金属介导的偶联反应,开发了对棒状并四苯衍生物的高效且通用的合成途径。本文介绍了三种所得材料的合成及结构,电学和电荷传输性质,即2-(tetracen-2-yl)并四苯,1,4-双(2-tetracenyl)苯和2,5给出了双(2-四烯基)噻吩。与并四苯相比,在SiO 2衬底上具有良好的结晶行为,带隙缩小了0.2 eV,电离电势降低了0.5 eV以上。载流子的场效应迁移率约为10 -1 cm 2 V -1 s -1,通过标准的高真空沉积技术制备的薄膜有机场效应晶体管的开/关比为10 5,阈值电压V th <15V。