Achieving an Improved NIR Performance of Ca4–xSc2xZr1–xGe3O12:Cr3+ via [Sc3+-Sc3+]→[Ca2+-Zr4+] DOI
Ying Chen, Rongfei Wei,

Lanjiao Li

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 7, 2024

High-performance near-infrared (NIR) light sources are highly sought after in advanced spectroscopy techniques, driving the development of NIR phosphor-converted light-emitting diodes (pc-LEDs). Escalating luminescence intensity and thermal stability NIR-emitting phosphors, which is a core component pc-LEDs, paramount importance. Herein, chemical unit cosubstitution cosolvent addition tactics were implemented to simultaneously boost performance synthesized phosphors. The replacement [Sc

Language: Английский

A novel highly thermal-stable Ca2GaNbO6: Sm3+ phosphor with excellent color purity for high CRI wLEDs and security ink DOI

Yanzhi Zhang,

Xiang Guo, M. Zhang

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1002, P. 175459 - 175459

Published: July 5, 2024

Language: Английский

Citations

13
Rare‐Metal‐Free Ultrabroadband Near‐Infrared Phosphors DOI

Guojun Zheng,

Chenjie Lou, Zeming Yuan

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Abstract Trivalent chromium (Cr 3+ ) is an attractive near‐infrared (NIR) emitter, but its ultrabroadband NIR emission limited to host crystals containing large amounts of rare‐metal elements and usually suffers from low internal quantum efficiency (IQE) poor thermal stability. Here, a class high‐performance, rare‐metal‐free phosphors, are reported by revealing that weak‐field Cr centers featuring broadband with near‐unity IQEs intrinsic, though in trace quantities, doped MgAl 2 O 4 spinel (MAS) derivatives well‐known for their narrowband far‐red emission. It shown such stem cation inversion ubiquitous compounds, quantity can be increased simply superstoichiometric Al 3 /Ga . Then SiO introduced into ‐excess MAS break the symmetry greatly improving probabilities otherwise parity‐forbidden d –3 transitions. The as‐fabricated phosphor‐converted light‐emitting diodes capable emitting light high photoelectric (16.0%) optical power (180.8 mW), excellent spectral stability, which apparently outperforms existing state‐of‐the‐art devices.

Language: Английский

Citations

4
A novel Dy3+ activated Ba4La6O(SiO4)6 phosphor with robust thermal stability for WLED applications DOI

Qiong Xi,

Tao Yin,

You Zhang

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 179241 - 179241

Published: Feb. 1, 2025

Language: Английский

Citations

0
Ce3+-activated Ca2LuAl3Si2O12: A blue-light-excited broadband cyan-emitting garnet phosphor with an ultra-small Stokes shift for high performance white light-emitting diodes DOI
Haidong Ju,

Jiaqin He,

Hongguang Guo

et al.

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

Published: April 1, 2025

Language: Английский

Citations

0
Achieving an Improved NIR Performance of Ca4–xSc2xZr1–xGe3O12:Cr3+ via [Sc3+-Sc3+]→[Ca2+-Zr4+] DOI
Ying Chen, Rongfei Wei,

Lanjiao Li

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 7, 2024

High-performance near-infrared (NIR) light sources are highly sought after in advanced spectroscopy techniques, driving the development of NIR phosphor-converted light-emitting diodes (pc-LEDs). Escalating luminescence intensity and thermal stability NIR-emitting phosphors, which is a core component pc-LEDs, paramount importance. Herein, chemical unit cosubstitution cosolvent addition tactics were implemented to simultaneously boost performance synthesized phosphors. The replacement [Sc

Language: Английский

Citations

1