Enlarging Environmental Asymmetry by the Site Tailoring to Enhance Luminescence Properties of Sm3+ in the (Gd,Na)3(Ga,In)2(Ga,Ge)3O12 Garnet DOI
Jiajun Feng, Y. B. Yu, Hongji Song

et al.

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

Published: April 2, 2025

A structural design strategy was employed to develop NaGd2Ga2InGe2O12:Sm3+ (NGGIG:Sm3+) garnet phosphors, optimizing the local coordination environment enhance luminescence performance. By tailoring site occupation, Sm3+ ions were incorporated into an asymmetric crystal field, where a statistical probability model confirmed that ∼97% of reside in distorted environments, promoting electric dipole(ED) transitions. The phosphors exhibit high red-to-orange (R/O) intensity ratio 2.97, contributing enhanced red emission. CIE chromaticity coordinates (0.61, 0.39) indicate significant shift toward region, and retain over 70% their at 400 K, demonstrating good thermal stability. These characteristics make NGGIG:Sm3+ promising candidate for high-performance solid-state lighting applications, highlighting effectiveness engineering structures efficiency

Language: Английский

Enlarging Environmental Asymmetry by the Site Tailoring to Enhance Luminescence Properties of Sm3+ in the (Gd,Na)3(Ga,In)2(Ga,Ge)3O12 Garnet DOI
Jiajun Feng, Y. B. Yu, Hongji Song

et al.

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

Published: April 2, 2025

A structural design strategy was employed to develop NaGd2Ga2InGe2O12:Sm3+ (NGGIG:Sm3+) garnet phosphors, optimizing the local coordination environment enhance luminescence performance. By tailoring site occupation, Sm3+ ions were incorporated into an asymmetric crystal field, where a statistical probability model confirmed that ∼97% of reside in distorted environments, promoting electric dipole(ED) transitions. The phosphors exhibit high red-to-orange (R/O) intensity ratio 2.97, contributing enhanced red emission. CIE chromaticity coordinates (0.61, 0.39) indicate significant shift toward region, and retain over 70% their at 400 K, demonstrating good thermal stability. These characteristics make NGGIG:Sm3+ promising candidate for high-performance solid-state lighting applications, highlighting effectiveness engineering structures efficiency

Language: Английский

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