典型文献
Multiple anti-counterfeiting strategy by integrating up-conversion,down-shifting luminescence,phosphorescence and photochromism into NaYTiO4:Bi/Er phosphors
文献摘要：
With the rapid development of science and technology,the high-security-level anti-counterfeiting tech-nique is essential for ensuring property or information security.In this work,we prepared micron NaYTiO4:Bi/Er(NYT:Bi/Er)phosphors with integrating up-conversion(UC)photoluminescence,down-shifting(DS)emission,phosphorescence and photochromism(PC)performances for advanced multiple anti-counterfeiting application.Owing to the abundant energy levels of Er3+ions,the UC and DS lumi-nescence behaviors are anticipated.Specifically,the yellow-green emission of Er3+ions can be observed upon 980 nm excitation,and the bright green emission is demonstrated under 281 or 254 nm excitation due to the energy transitions of Er3+ions and the energy transfer process from Bi3+to Er3+ions.Besides,the introduction of Bi3+ions generates defect levels in the matrix and thus leads to phosphorescence.Furthermore,the repeatable PC performance could be triggered by the 365 nm irradiation and vanished with 450 nm illumination or thermal stimulation.To verify the practical usability of NYT:Bi/Er phos-phors on anti-counterfeiting applications,some experiments are designed and successfully executed.It is believed that the NYT:Bi/Er phosphors can be a promising candidate for high-security-level multiple anti-counterfeiting.
文献关键词：
中图分类号：
作者姓名：
Yuzhen Wang;Xuanyi Yuan;Yongge Cao;Chaoyang Ma
作者机构：
Songshan Lake Materials Laboratory,Dongguan 523808,China;Department of Physics,Renmin University of China,Beijing 100872,China;Beijing National Laboratory for Condensed Matter Physics and Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China
文献出处：
引用格式：
[1]Yuzhen Wang;Xuanyi Yuan;Yongge Cao;Chaoyang Ma-.Multiple anti-counterfeiting strategy by integrating up-conversion,down-shifting luminescence,phosphorescence and photochromism into NaYTiO4:Bi/Er phosphors)[J].材料科学技术（英文版）,2022(35):219-226
A类：
NaYTiO4,Bi3+to,Bi3+ions,phors
B类：
Multiple,counterfeiting,strategy,by,integrating,conversion,down,shifting,phosphorescence,photochromism,into,phosphors,With,rapid,development,science,technology,high,security,nique,essential,ensuring,property,information,In,this,work,we,prepared,micron,NYT,UC,photoluminescence,DS,emission,performances,advanced,multiple,Owing,abundant,energy,levels,Er3+ions,behaviors,anticipated,Specifically,yellow,green,observed,upon,excitation,bright,demonstrated,under,due,transitions,transfer,process,from,Besides,introduction,generates,defect,matrix,thus,leads,Furthermore,repeatable,could,triggered,irradiation,vanished,illumination,thermal,stimulation,To,verify,practical,usability,applications,some,experiments,designed,successfully,executed,It,believed,that,promising,candidate
AB值：
0.468446
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