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Photoactivated Circularly Polarized Room-Temperature Phosphorescence from Phenoselenazine Derivative and Its Application in Information Security

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Chinese Journal of Chemistry 2024年第20期42卷 2499-2506页

作者： Shiyao Fu Yi Chen Yujun Xie Zhen Li Institute of Molecular Aggregation Science Tianjin UniversityTianjin 300072China Joint Schoolof National University of Singapore and Tianjin University International Campus of Tianjin UniversityBinhai New City FuzhouFujian 350207China Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials Department of ChemistryWuhan UniversityWuhanHubei 430072China

Room-temperature phosphorescence(RTP)materials have experienced rapid development due to their potential in organic light-emitting diode,information security,bioimaging,***,the design of chiral organic phosphors with circularly polarized RTP(CPP)property remains a formidable ***,we introduce a chiral perturbation approach using a combination of chiral binaphthol and phenoselenazine derivative to achieve *** photoactivated CPP in polystyrene(PS)film demonstrates a luminescence dissymmetry factor(glum),emission efficiency,and RTP lifetime up to 9.32×10^(–3),27.0%,and 40.0 ms,*** remarkable sensitivity of PS film to oxygen and temperature enables the adjustable emission colors,ranging from green to offwhite and blue under varying *** doping systems,utilizing hosts of triphenylphosphine and 9-phenylcarbazole,demonstrate an extended CPP lifetime of 85.9 ms and exhibit a persistent mechanoluminescence property with low pressure response threshold as low as 0.15 *** information security provided by this CPP material was attained via the using of diverse emission colors and afterglow generated by distinct UV irradiation times and host ***,it can also be achieved by observing different emission patterns using R-and *** research has presented a reliable approach for producing CPP materials with high emission efficiency and glum.

关键词： Room-temperature phosphorescence Circularly polarized luminescence Spin-orbit coupling Host-guest systems multi-stimuli-responsive luminescence Phenoselenazine

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