Fluoranthene Imide Dimers with Strong Isomeric Effects on the Charge Transport Properties

IF 2.9 3区化学 Q3 CHEMISTRY, PHYSICAL

Physical Chemistry Chemical Physics Pub Date : 2024-10-08 DOI:10.1039/d4cp03245d

Ting-Yu Wang, Huangcheng Liu, Miao Liu, Yen-Han Shih, Xinyu Yu, Zhong'an Li, Chu-Chen Chueh

引用次数: 0

Abstract

To date, the development of high-performance n-type organic semiconductors has remained challenging due to the scarcity of highly electron-deficient π-conjugated structural units and the difficulty of controlling intermolecular packing in the thin-film state. In addition, there have been few reports on the use of dimer design to tune the optoelectronic properties of materials. Herein, we report new cyano-substituted fluoranthene imide-based dimers (F16 and F17) for small-molecule n-type organic semiconductors. It is noteworthy that substituents at different positions lead to different film morphologies and very distinct thermal aggregation behaviors due to different dihedral angles. The self-assembly behavior of F17 improves thermal stability. Therefore, F17, which has a closer cyano groups structure, exhibits better field-effect transistor performance, with a maximum mobility of 6.57×10^(-4) cm2 V–1 s–1, while F16 does not exhibit any transistor performance.

查看原文本刊更多论文

对电荷传输特性具有强烈异构效应的荧蒽酰亚胺二聚体

迄今为止，高性能 n 型有机半导体的开发仍然充满挑战，这是因为高度缺电子的 π 共轭结构单元非常稀缺，而且难以控制薄膜状态下的分子间堆积。此外，利用二聚体设计来调整材料光电特性的报道也很少。在此，我们报告了用于小分子 n 型有机半导体的新型氰基取代荧蒽亚胺基二聚体（F16 和 F17）。值得注意的是，不同位置的取代基会导致不同的薄膜形态，并且由于二面角的不同而产生截然不同的热聚集行为。F17 的自组装行为提高了热稳定性。因此，具有更紧密氰基结构的 F17 表现出更好的场效应晶体管性能，其最大迁移率为 6.57×10^(-4) cm2 V-1 s-1，而 F16 则没有表现出任何晶体管性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Physical Chemistry Chemical Physics 化学-物理：原子、分子和化学物理

CiteScore

5.50

自引率

9.10%

发文量

2675

审稿时长

2.0 months

期刊介绍： Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.