芴
共轭体系
取代基
材料科学
块(置换群论)
模块化设计
分子
纳米技术
聚合物
计算机科学
化学
有机化学
数学
复合材料
几何学
操作系统
作者
Xiang An,Jinghao Yang,Man Xu,Lili Sun,Lubing Bai,Kai Wang,Zhiqiang Zhuo,Yingying Zheng,Jinyi Lin,Xue‐Hua Ding,Yuyu Liu,Linghai Xie,Changlong Yin,Wei Huang
标识
DOI:10.1016/j.cclet.2022.03.102
摘要
In the design of conjugated molecules, modular production enables materials to easily realize structure modification and precisely tune their photoelectrical property. Construction of a novel and universal building block is crucial to design and manufacture high performance and stable conjugated molecules for optoelectronic application. Herein, we originally demonstrated a universal 4-qualifiable fluorene-based building block, which is a fundamental molecular segment to functionalize and obtain novel conjugated materials. Compared to the traditional modification at 9-site, additional 4-position functionalization provided an exciting blueprint to not only tune electronic structure and excited state via p-n molecular design engineering and space charge-transfer strategy, but also allow for optimizing intermolecular arrangement and obtaining solution-processing ability. The introduction of the 4-site substituent in fluorene based semiconductors may endow materials with unique properties. Finally, we successfully prepared two stable deep-blue light-emitting conjugated polymer, PODOPF and PODOF, by utilizing the 4-substituent fluorene based building block. It is believable that the performance, stability and processibility of reported outstanding fluorene-based conjugated molecules can be further optimized based on this universal building block.
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