Enhanced Luminescence and Thermal Stability in High Gd3+/Eu3+ Co-Doped Ba3Y4O9 Phosphors via Co-Precipitation Method DOI Creative Commons
Dongdong Zhu, Chunfeng Wang,

Xiaohuai Wang

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(5), P. 1085 - 1085

Published: Feb. 27, 2025

The co-precipitation method was successfully used to synthesize Ba3(Y0.6-xGd0.4Eux)4O9 (0.01 ≤ x 0.09) phosphors with heavy Gd3+ doping, resulting in significantly enhanced thermal stability and luminescence performance. Structural analyses confirm that Eu3+ ions substitute Y3+ the lattice, causing lattice expansion improving crystal asymmetry, which enhances emission. incorporation of creates efficient energy transfer pathways while suppressing non-radiative relaxation, leading stable fluorescence lifetimes even at elevated temperatures. With a activation ~0.3051 eV, Ba3(Y0.55Gd0.4Eu0.05)4O9 phosphor exhibits superior resistance quenching compared Ba3(Y0.95Eu0.05)4O9 many conventional red phosphors. Furthermore, reduced color temperature emission spectra across wide range highlight its potential for advanced lighting display technologies high-temperature environments.

Language: Английский

Enhanced Luminescence and Thermal Stability in High Gd3+/Eu3+ Co-Doped Ba3Y4O9 Phosphors via Co-Precipitation Method DOI Creative Commons
Dongdong Zhu, Chunfeng Wang,

Xiaohuai Wang

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(5), P. 1085 - 1085

Published: Feb. 27, 2025

The co-precipitation method was successfully used to synthesize Ba3(Y0.6-xGd0.4Eux)4O9 (0.01 ≤ x 0.09) phosphors with heavy Gd3+ doping, resulting in significantly enhanced thermal stability and luminescence performance. Structural analyses confirm that Eu3+ ions substitute Y3+ the lattice, causing lattice expansion improving crystal asymmetry, which enhances emission. incorporation of creates efficient energy transfer pathways while suppressing non-radiative relaxation, leading stable fluorescence lifetimes even at elevated temperatures. With a activation ~0.3051 eV, Ba3(Y0.55Gd0.4Eu0.05)4O9 phosphor exhibits superior resistance quenching compared Ba3(Y0.95Eu0.05)4O9 many conventional red phosphors. Furthermore, reduced color temperature emission spectra across wide range highlight its potential for advanced lighting display technologies high-temperature environments.

Language: Английский

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