139456-45-4Relevant articles and documents
Novel thermal activation delayed fluorescence material based on excimer luminescence and application thereof
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Paragraph 0018; 0020-0021, (2020/12/08)
The invention discloses a novel thermal activation delayed fluorescence material. The material is an organic small molecular material containing a 5-acetyl isophthalonitrile structural unit, the luminescence mechanism of the material is different from that of a traditional thermal activation delayed fluorescence material, namely, the material has no thermal activation delayed fluorescence propertyin a dilute solution state and shows excimer type thermal activation delayed fluorescence property in a high-concentration or aggregation state (such as a thin film and a crystal), and the delayed fluorescence lifetime is shorter than that of the traditional thermal activation delayed fluorescence material. The material can be used for replacing traditional thermal activation delayed fluorescenceor organic metal complex materials and the like to be applied to the organic photoelectric fields of organic light emitting diodes, biological imaging, optical anti-counterfeiting and the like.