有机发光二极管中双极性激射体的供体-受体二氟化硼配合物。

IF 8.2 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces Pub Date : 2025-10-23 DOI:10.1021/acsami.5c17456

Stepan Kutsiy,Oleksandr Bezvikonnyi,Andrii Hotynchan,Dmytro Volyniuk,Roman Luboradzki,Hanna M Zinchenko,Agnieszka Wisniewska,Pavlo Stakhira,Juozas Vidas Grazulevicius,Mykhaylo A Potopnyk

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引用次数: 0

摘要

设计、合成了4个具有供体-受体结构的含1,3-噻唑/硒化唑二氟化硼配合物，并对其进行了全面的光谱表征。x射线晶体学分析表明，在固体状态下，分子采用扭曲构象，有效抑制有害的π-π堆积。同时，大量的分子间氢键相互作用稳定了填料，导致固态光致发光量子产率高达37%。与这些结构特征一致，染料在四氢呋喃-水混合物中表现出明显的聚集诱导发射增强。除了它们的光物理性质，配合物也表现出良好的半导体行为。在有机发光二极管中，将其作为显式形成的发射器，使器件高效运行，外部量子效率高达14.9%。

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Donor-Acceptor Boron Difluoride Complexes for Bipolar Exciplex Emitters in Organic Light-Emitting Diodes.

Four 1,3-thiazole/selenazole-containing boron difluoride complexes with donor-acceptor architectures were designed, synthesized, and thoroughly spectroscopically characterized. X-ray crystallographic analysis revealed that in the solid state the molecules adopt twisted conformations that effectively suppress detrimental π-π stacking. At the same time, numerous intermolecular hydrogen-bonding interactions stabilize the packing, leading to remarkably high solid-state photoluminescence quantum yields of up to 37%. Consistent with these structural features, the dyes exhibit clear aggregation-induced emission enhancement in tetrahydrofuran-water mixtures. Beyond their photophysical properties, the complexes also demonstrate favorable semiconducting behavior. When incorporated as exciplex-forming emitters in organic light-emitting diodes, they enabled efficient device operation with external quantum efficiencies reaching up to 14.9%.

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来源期刊

ACS Applied Materials & Interfaces 工程技术-材料科学：综合

CiteScore

16.00

自引率

6.30%

发文量

4978

审稿时长

1.8 months

期刊介绍： ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.