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

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

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Room-temperature phosphorescence(RTP)materials have experienced rapid development due to their potential in organic light-emitting diode,information security,bioimaging,etc.However,the design of chiral organic phosphors with circularly polarized RTP(CPP)property remains a formidable challenge.Here,we introduce a chiral perturbation approach using a combination of chiral binaphthol and phenoselenazine derivative to achieve CPP.The photoactivated CPP in polystyrene(PS)film demonstrates a lumines-cence dissymmetry factor(glum),emission efficiency,and RTP lifetime up to 9.32 x 10-3,27.0％,and 40.0 ms,respectively.The remark-able sensitivity of PS film to oxygen and temperature enables the adjustable emission colors,ranging from green to offwhite and blue under varying conditions.The 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 N.The information security provided by this CPP material was attained via the using of diverse emission colors and afterglow gener-ated by distinct UV irradiation times and host materials.Alternately,it can also be achieved by observing different emission patterns using R-and L-polarizer.The research has presented a reliable approach for producing CPP materials with high emission efficiency and glum.

Room-temperature phosphorescenceCircularly polarized luminescenceSpin-orbit couplingHost-guest systemsMulti-stimuli-responsive luminescencePhenoselenazine

Shiyao Fu、Yi Chen、Yujun Xie、Zhen Li

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Institute of Molecular Aggregation Science,Tianjin University,Tianjin 300072,China

Joint School of National University of Singapore and Tianjin University,International Campus of Tianjin University,Binhai New City,Fuzhou,Fujian 350207,China

Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials,Department of Chemistry,Wuhan University,Wuhan,Hubei 430072,China

2024

10.1002/cjoc.202400361

中国化学(英文版)
中国化学会 上海有机化学研究所

中国化学(英文版)

CSTPCD
影响因子：0.848
ISSN：1001-604X
年,卷(期)：2024.42(20)