Highly sensitive response of luminescence chromaticity to laser power in Lu2Mo4O15:Yb3+/Ho3+ upconverting materials

Zhou, Zixun; Zhu, Bin; Chen, Kuanxin; Pang, Tao

doi:10.1039/d3dt02386a

Dalton Trans.

2023

DOI: 10.1039/d3dt02386a

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Highly sensitive response of luminescence chromaticity to laser power in Lu₂Mo₄O₁₅:Yb³⁺/Ho³⁺ upconverting materials

Zixun Zhou,

Bin Zhu,

Kuanxin Chen

et al.

Abstract: Power-based upconversion luminescence color regulation (PUCR) is especially suitable for developing luminescence-based dynamic anti-counterfeiting owing to its straightforward usage. However, it maintains a challenge for the visually remarkable Ho3+-based PUCR....

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2024

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Cited by 2 publications

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Upconversion luminescence through dynamically regulating the depletion of Ho3+: 5I6 level for speed sensing

Wu,

Pang,

et al. 2024

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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Upconversion luminescence through dynamically regulating the depletion of Ho3+: 5I6 level for speed sensing

Wu,

Pang,

et al. 2024

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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Construction of active-inert core–shell structured nanocrystals for broad range multicolor upconversion luminescence

Zhu,

Li,

et al. 2024

Sci Rep

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Rare earth doped up-conversion luminescent nano-materials exhibit abundant emission colors under suitable excitation condition. In this work, NaYF4:Er/Ho@NaYF4 and NaYbF4:Tm@NaYF4 nanoparticles were synthesized by co-precipitation method. The pure red emission can be realized by the designed NaYF4:Er/Ho@NaYF4 nanocrystals and the R/Gs reach 23.3 and 25 under excitations of 980 and 1550 nm lasers, respectively. The R/G declines as the power increasing with the emission color changing from red to yellow, which is due to the quick saturation of the energy levels, radiating red emissions. Meanwhile, the emission intensity of NaYbF4:Tm@NaYF4 nanocrystals increases by 58.3 folds after encasing the inert shell NaYF4 and the CIE color coordinate reaches (0.1646, 0.0602) under 980 nm laser excitation. Furthermore, broad range multicolor from blue to red and yellow up-conversion emissions is achieved by mixing NaYF4:Er/Ho@NaYF4 and NaYbF4:Tm@NaYF4 nanocrystals, which could be applied to colorful displaying, security anti-counterfeiting and information coding.

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Highly sensitive response of luminescence chromaticity to laser power in Lu₂Mo₄O₁₅:Yb³⁺/Ho³⁺ upconverting materials

Abstract: Power-based upconversion luminescence color regulation (PUCR) is especially suitable for developing luminescence-based dynamic anti-counterfeiting owing to its straightforward usage. However, it maintains a challenge for the visually remarkable Ho3+-based PUCR....

Cited by 2 publications

References 35 publications

Upconversion luminescence through dynamically regulating the depletion of Ho3+: 5I6 level for speed sensing

Upconversion luminescence through dynamically regulating the depletion of Ho3+: 5I6 level for speed sensing

Construction of active-inert core–shell structured nanocrystals for broad range multicolor upconversion luminescence

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