Regulated polarization degree of upconversion luminescence and multiple anti-counterfeit applications

Dong-Ping Wen ¹Ping Chen ¹Yi Liang ¹Xiao-Ming Mo ¹Cao-Feng Pan²

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作者信息

1. Center On Nanoenergy Research,Guangxi Key Laboratory for Relativistic Astrophysics,School of Physical Science and Technology,Guangxi University,Nanning 530004,China
2. Center On Nanoenergy Research,Guangxi Key Laboratory for Relativistic Astrophysics,School of Physical Science and Technology,Guangxi University,Nanning 530004,China;Key Laboratory of Micronano Energy and Sensor,CAS Center for Excellence in Nanoscience,Beijing Institute of Nanoenergy and Nanosystems,Chinese Academy of Sciences,Beijing 100140,China
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Abstract

Polarization upconversion luminescence(PUCL)of lanthanide ions(Ln3+)has been widely used in single particle tracking,microfluidics detection,three-di-mensional displays,and so on.However,no effective strategy has been developed for modulating PUCL.Here,we report a strategy to regulate PUCL in Ho3+-doped NaYF4 single nanorods based on the number of upcon-version photons.By constructing a multiphoton upcon-version system for Ho3+,we regulate the degree of polarization(DOP)of PUCL from 0.590 for two-photon luminescence to 0.929 for three-photon upconversion luminescence(UCL).Furthermore,our strategy is verified from cross-relaxation between Ho3+and Yb3+,excitation wavelength,excitation power density,and local site sym-metry.And this regulation strategy of PUCL has also been achieved in Tm3+,with the DOP ranging from 0.233 for two-photon luminescence to 0.925 for four-photon UCL.Besides,multi-dimensional anti-counterfeiting display has been explored with PUCL.This work provides an effective strategy for regulating PUCL and also provides more opportunities for the development of polarization display,optical encoding,anti-counterfeiting,and integrated optical devices.

Key words

Polarization upconversion luminescence/Degree of polarization/Population density of excited state/Number of upconversion photons/Polarization anti-counterfeiting display

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基金项目

National Natural Science Foundation of China(11704081)

National Natural Science Foundation of China(52125205)

National Natural Science Foundation of China(52250398)

National Natural Science Foundation of China(U20A20166)

National Natural Science Foundation of China(52192614)

National Natural Science Foundation of China(52003101)

Guangxi Natural Science Foundation(2020GXNSFAA297182)

Guangxi Natural Science Foundation(2020GXNSFAA297041)

Guangxi Natural Science Foundation(2017GXNSFBA19-8229)

special fund for"Guangxi Bagui Scholars,"()

National Science and Technology Innovation Talent Cultivation Program(2021YFB3200302)

National Science and Technology Innovation Talent Cultivation Program(2021YFB3200304)

Natural Science Foundation of Beijing Municipality(2222088)

Shenzhen Science and Technology Innovation Program(KQTD20170810105439418)

Fundamental Research Funds for the Central Universities()

出版年

2024

稀有金属(英文版)

中国有色金属学会

稀有金属(英文版)

CSTPCDEI

影响因子：0.801

ISSN：1001-0521

参考文献量52

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