具有扩展π连接体的推挽型咔唑基有机半导体的发展，以增强红移吸收发射和提高电荷迁移率

IF 3.8 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Pub Date : 2025-07-17 DOI:10.1016/j.optmat.2025.117334

Viktorija Andruleviciene , Rita Butkute , Oleksandr Bezvikonnyi , Dmytro Volyniuk , Gjergji Sini , Azzuliani Supangat , Juozas Vidas Grazulevicius

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引用次数: 0

摘要

本工作设计并合成了一系列具有推拉结构的新型有机半导体，其中两种π-连接体在给电子咔唑基团和吸电子氰基之间具有不同的共轭长度。研究结果揭示了供体和受体之间共轭π连接体在促进有效电荷转移和调节共轭长度方面的作用。具有扩展π-连接剂的化合物具有增强的共轭效率，从而改善了光吸收，红移光致发光和改善了空穴迁移率。该研究强调了在光电应用的推挽系统中设计具有可调谐π共轭的有机半导体的潜力。

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Development of push-pull carbazole-based organic semiconductors with extended π-linkers for enhanced red-shifted absorption-emission and improved charge mobilities

This work presents the design and synthesis of a series of new organic semiconductors featuring a push-pull system, with two types of π-linkers with the different conjugation lengths between the electron-donating carbazole moiety and electron-withdrawing cyano groups. The findings provide insight into the role of conjugated π-linkers between donor and acceptor units in facilitating efficient charge transfer and tuning conjugation length. Compounds with the extended π-linker exhibit enhanced conjugation efficiency resulting in improved light absorption, red-shifted photoluminescence, and improved hole mobility. This study highlights the potential for design of organic semiconductors with tunable π-conjugation in push-pull systems for optoelectronic applications.

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来源期刊

Optical Materials 工程技术-材料科学：综合

CiteScore

6.60

自引率

12.80%

发文量

1265

审稿时长

38 days

期刊介绍： Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials. OPTICAL MATERIALS focuses on: • Optical Properties of Material Systems; • The Materials Aspects of Optical Phenomena; • The Materials Aspects of Devices and Applications. Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.