Trithienylenevinylenes having amide end functional groups form supramolecular gels in nonpolar solvents, comprised of self-assembled nanowires. These gels exhibit the unique property of solution phase epitaxy leading to the alignment of fibers on mica surface. FP-TRMC studies revealed high charge carrier mobility for xerogels from decane-chloroform whereas films obtained from chloroform solutions showed less mobility, highlighting the role of self-assembly and gelation on the electronic properties of semiconducting molecular gelators. This study opens the window for a new class of conducting gelators which may find wide application in organic electronic devices.
vital role. Herein, we report how the self-assembly of thienylenevinylenes T1 and T2 can achieve morphologically distinct nanostructures with improved charge carrier mobility. Morphological analysis revealed that T1 forms 2D nanosheets that further extend to an array of hierarchical pseudo-1D assemblies, whereas T2 results in 1D nanofibers. Flash photolysis – time resolved microwave conductivity and transient
高电荷载流子迁移率是有机电子学的先决条件,其中分子排列和形态起着至关重要的作用。在此,我们报告了噻吩乙烯撑 T1 和 T2 的自组装如何实现形态上不同的纳米结构,并提高了电荷载流子的迁移率。形态学分析表明,T1 形成二维纳米片,进一步延伸到分层伪一维组件阵列,而 T2 形成一维纳米纤维。闪光光解 - 时间分辨微波电导率和瞬态吸收光谱(FP-TRMC 和 TAS)显示 T2 的一维纤维显示出 1.75 倍的电荷载流子迁移率(9.2 × 10 -2 cm 2 V -1 s -1) 与从 T1 (5.0 × 10 -2 cm 2 V -1 s -1 ) 获得的二维薄片阵列相比。这种简单的方法可以扩展到设计用于光电应用的自组装有机光电导材料。