A yellow-green-emitting phosphor K3LaSi2O7:Eu2+ with superior thermal stability for solid-state lighting DOI
Maoli Wang, Xiao‐Ping Zhou, Jiangcong Zhou

et al.

Ceramics International, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 1, 2024

Language: Английский

Near‐Unity and Near‐Zero‐Thermal‐Quenching Luminescent GAGG–Al2O3:Cr3+ Ceramic via Containerless Solidification and Glass Crystallization Methods for NIR Spectroscopy Application DOI Open Access

Yifeng Xiao,

Lei Han,

Zongliang Xiao

et al.

Laser & Photonics Review, Journal Year: 2025, Volume and Issue: unknown

Published: March 18, 2025

Abstract Near‐infrared (NIR) light is widely used in real‐time testing fields such as organic component detection and biological imaging owing to its strong tissue penetration nondestructive properties. However, the performance of NIR phosphor‐converted light‐emitting diodes (pc‐LEDs) constrained by limitations efficiency output power. In this work, Gd 3 Al Ga 2 O 12 (GAGG)–Al :Cr 3+ ceramics are successfully synthesized via containerless solidification glass crystallization methods. The matrix functions an optically active akin GAGG, mitigating concentration quenching effects while preserving absorption. Under 450 nm excitation, ceramic exhibits intense luminescence, achieving exceptional internal/external quantum efficiencies (IQE/EQE = 96.8%/46.1%) remarkable thermal stability (94.3%@150 °C). ceramic‐converted LED (cc‐LED) demonstrates outstanding photoelectric conversion (28%@350 mA) robust (236 mW@350 mA). Additionally, laser diode (LD)‐excited device achieves watt‐level (1.52 W@10 W mm −2 ). As a proof concept, source shows immense potential for diverse applications including plant illumination, testing, bioimaging systems. Therefore, innovative GAGG–Al NIR‐LED&LD not only broadens practical application scope sources but also offers transformative pathway next‐generation compact high‐power devices field.

Language: Английский

Citations

0
Near-infrared luminescence in Ca3ZnMGe3O12:Cr3+ (M = Zr, Hf, Sn, Ti) garnet family for light-emitting diode applications DOI
Chao Li, Ying Li,

Yi Xu

et al.

Ceramics International, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 1, 2024

Language: Английский

Citations

1
A yellow-green-emitting phosphor K3LaSi2O7:Eu2+ with superior thermal stability for solid-state lighting DOI
Maoli Wang, Xiao‐Ping Zhou, Jiangcong Zhou

et al.

Ceramics International, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 1, 2024

Language: Английский

Citations

1