Oxadiazole-integrated heterocoronene discotics as ambipolar organic semiconductors
作者:Ritobrata De、Joydip De、Santosh Prasad Gupta、Indu Bala、Ankita、Tarun、Upendra Kumar Pandey、Santanu Kumar Pal
DOI:10.1039/d2tc04144h
日期:——
charge-transport properties of the system. Here, we have successfully designed and synthesized room-temperature DLCs (1.1, 1.2 and 1.3) with 1,3,4-oxadiazole functional units acting as electron-deficient linkers between a central heterocoronene core and the peripheral alkoxy phenyl units. All the derivatives exhibited a broad columnar hexagonal mesophase range with high isotropic temperatures. When employed
现代技术的发展推动了对光电子学中新半导体材料的探索,其中自组装液晶 (LC) 材料可以发挥潜在作用。具有合适有机基团,尤其是杂环单元的盘状 LC (DLC) 的分子工程可以导致在纳米尺度范围内控制其柱状结构,这是调整系统电荷传输特性的关键。在这里,我们成功设计并合成了室温 DLC (1.1、1.2和1.3) 具有 1,3,4-恶二唑功能单元,作为中心杂并苯核心和外围烷氧基苯基单元之间的缺电子连接体。所有衍生物都表现出具有高各向同性温度的宽柱状六方中间相范围。当用于空间电荷限制电流 (SCLC) 器件时,它们在薄膜中表现出双极电荷传输行为,最大空穴和电子迁移率分别为 10 -3和 10 -5 cm 2 V -1 s -1数量级.