Highly efficient upconversion luminescence in narrow-bandgap Y2Mo4O15

Wenwu You; Xiaomin Zhang; Ruoxi Yu; Chao Chen; Mingxing Li; Gencai Pan; Yanli Mao

doi:10.1364/OL.519702

Optics Letters
Vol. 49,
Issue 7,
pp. 1824-1827
(2024)
•https://doi.org/10.1364/OL.519702

Highly efficient upconversion luminescence in narrow-bandgap Y₂Mo₄O₁₅

Wenwu You, Xiaomin Zhang, Ruoxi Yu, Chao Chen, Mingxing Li, Gencai Pan, and Yanli Mao

Not Accessible

Your library or personal account may give you access

Get PDF
Email
Share
Get Citation
Copy Citation Text
Wenwu You, Xiaomin Zhang, Ruoxi Yu, Chao Chen, Mingxing Li, Gencai Pan, and Yanli Mao, "Highly efficient upconversion luminescence in narrow-bandgap Y₂Mo₄O₁₅," Opt. Lett. 49, 1824-1827 (2024)

Export Citation
- BibTex
- Endnote (RIS)
- HTML
- Plain Text
Citation alert
Save article

Check for updates

Abstract

Lanthanide-doped upconversion (UC) materials have been extensively investigated for their unique capability to convert low-energy excitation into high-energy emission. Contrary to previous reports suggesting that efficient UC luminescence (UCL) is exclusively observed in materials with a wide bandgap, we have discovered in this study that Y₂Mo₄O₁₅:Yb³⁺/Tm³⁺ microcrystals, a narrowband material, exhibit highly efficient UC emission. Remarkably, these microcrystals do not display any four- or five-photon UC emission bands. This particular optical phenomenon is independent of the variation in doping ion concentration, temperature, phonon energy, and excitation power density. Combining theoretical calculations and experimental results, we attribute the vanishing emission bands to the strong interaction between the bandgap of the Y₂Mo₄O₁₅ host matrix (3.37 eV) and the high-energy levels (¹I₆ and ¹D₂) of Tm³⁺ ions. This interaction can effectively catalyze the UC emission process of Tm³⁺ ions, which leads to Y₂Mo₄O₁₅:Yb³⁺/Tm³⁺ microcrystals possessing very strong UCL intensity. The brightness of these microcrystals outshines commercial UC NaYF₄:Yb³⁺,Er³⁺ green phosphors by a factor of 10 and is 1.4 times greater than that of UC NaYF₄:Yb³⁺,Tm³⁺ blue phosphors. Ultimately, Y₂Mo₄O₁₅:Yb³⁺/Tm³⁺ microcrystals, with their distinctive optical characteristics, are being tailored for sophisticated anti-counterfeiting and information encryption applications.

Full Article | PDF Article

More Like This

Close-relationship between the luminescence and structural characteristics in efficient nano-phosphor Y₂Mo₄O₁₅:Eu³⁺

Huajuan Deng, Na Xue, Zhoufei Hei, Mengfan He, Ting Wang, Nannan Xie, and Ruijin Yu
Opt. Mater. Express 5(3) 490-496 (2015)

High-efficiency upconversion luminescence in UCNPs/CsPbBr₃ nanocomposites enhanced by silver nanoparticles

Wenting Liu, Tieshan Yang, Kunjian Cao, Jing Han, Mengmeng Jiao, Shufang Zhang, Chuanlu Yang, and Qinfeng Xu
Opt. Lett. 49(5) 1141-1144 (2024)

Tunable concentration-dependent upconversion and downconversion luminescence in NaYF₄: Yb³⁺, Er³⁺@ NaYF₄: Yb³⁺, Nd³⁺ core-shell nanocrystals for a dual-mode anti-counterfeiting imaging application

Shaobo Cui, Li Tao, Wen Kiat Chan, Donglei Zhou, Zhongzheng Yu, and Wen Xu
Opt. Lett. 47(11) 2814-2817 (2022)

Previous Article Next Article

Supplementary Material (1)

Name	Description
Supplement 1	Supplemental Document

Data availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors on receipt of a reasonable request.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.