Excellent Upconversion Luminescence Obtained by Er³⁺ Self-Sensitization for Temperature Sensing in Deep Tissues and Anticounterfeiting Application

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 2, 2025

The development of high-efficiency upconversion (UC) luminescent materials with multifunctional applications, particularly those excited by wavelengths within the second near-infrared (NIR) biological window, holds a paramount scientific significance. Herein, Er3+ self-sensitization UC performance 1532 nm wavelength is first studied in CaSc2O4 matrix. Strong green and red emission as well 4I11/2 → 4I15/2 NIR transition are observed, though multipath optical thermometry high sensitivity realized. Moreover, penetration depth tissues can reach at least 6 mm, benefiting from its ideal excitation located window. Beyond that, CaSc2O4: phosphor displays variable color luminescence under dual-wavelength excitation, including 980 nm, which be used for enhancing security anticounterfeiting materials. Our findings suggest that excellent properties promising candidate application field.

Language: Английский

Bimetallic Ln (III)-MOF (Ln = Gd, Tb) materials with excitation wavelength-dependent luminescence properties for advanced anti-counterfeiting

Optical Materials, Journal Year: 2025, Volume and Issue: unknown, P. 117084 - 117084

Published: April 1, 2025

Language: Английский

Li+-induced Dual Emission LiGa5O8 for High Sensitivity Optical Thermometer and Multi-mode Dynamic Anti-counterfeiting

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: May 1, 2025

Language: Английский