Interstitial oxygen defect inducing near-infrared luminescence in Ca3La2W2O12 phosphor DOI
Weiping Qin, Peng Zhang,

Xuan Miao

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1010, P. 177970 - 177970

Published: Dec. 12, 2024

Language: Английский

A novel near-infrared phosphor Li1.6Mg1.6Sn2.8O8:Cr3+ for near-infrared spectral analysis DOI Creative Commons
Xiaowei Zhang, Dashuai Sun, Pengcheng Luo

et al.

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

A novel near-infrared broadband phosphor Li 1.6 Mg Sn 2.8 O 8 :Cr 3+ for spectroscopy with a peak at 860 nm and an FWHM of 187 nm.

Language: Английский

Citations

11
Neighboring‐Cation Substitution Engineering Strategy toward High Performance in Near‐Infrared Light Source for Multifunctional Applications DOI Open Access
Qiang Zhang, Xin Ding, Hongzhe Zhang

et al.

Advanced Optical Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 5, 2025

Abstract Efficient broadband near‐infrared (NIR)‐emitting phosphors with long‐wavelength emission peaks and high thermal stability are urgently needed as next‐generation smart NIR light sources. However, considerable challenges remain in developing high‐performing phosphors. Herein, a blue LED excitable Bi 1.8 Ga 1.2 SbO 7 : Cr 3+ (BGS: ) phosphor broad band long peak is designed synthesized. Further, strategy of neighboring‐cation substitution engineering proposed to improve the efficiency phosphor. The optimal 0.02Cr , 0.8In can generate an 700–1300 nm range full‐width at half‐maximum (FWHM) 198 nm. This has external quantum (EQE) 31.3% good 56.1% 423 K. A fabricated NIR‐LED device achieve output power 125.55 mW 300 mA photoelectric 17.45% 20 mA, demonstrating its application potential for night vision, bioimaging nondestructive detection. study offers new thoughts fulfill outstanding luminescent performances.

Language: Английский

Citations

1
La3Sc2Ga3O12:Cr3+, Nd3+ near-infrared phosphor for nondestructive detection and luminescence thermometry DOI
Xin Xie, Wanyin Ge, Ye Tian

et al.

Ceramics International, Journal Year: 2024, Volume and Issue: 50(22), P. 46098 - 46106

Published: Aug. 30, 2024

Language: Английский

Citations

4
Engineering Broadband Emission of Zn2Ga0.5‐yAlySb0.5O4∶Cr3+ Phosphors for Near‐Infrared LED Application DOI
Xiaowei Zhang,

Dashuai Sun,

Zheng Lu

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: May 5, 2025

Abstract In phosphor‐converted light‐emitting diode (pc‐LED)‐based near‐infrared light sources for biochemical analysis and medical diagnostics, phosphors with broadband (NIR) emission play an important role, obtaining such is a great challenge. Herein, efficient NIR‐emitting Zn 2 Ga 0.5‐y Al y Sb 0.5 O 4 :Cr 3+ are developed by introducing to gradually replace in the host through crystal engineering. Spectral densitometric calculations show that this homogeneous cation substitution strategy optimizes local lattice environment significantly suppresses nonradiative relaxation of Cr centers, thus exhibiting strong NIR properties. addition, ions varied low‐temperature emissions notable temperature sensitivity differences among centers. At 90 K, material achieves maximum relative 1.45% K −1 , highlighting its potential as thermosensitive applications sensing. The LED source fabricated based on shows significant response different liquids transmission spectral analysis, suggesting identification organic compounds.

Language: Английский

Citations

0
A novel near-infrared phosphor NaGa(WO4)2:Cr3+ with distinctive 998 nm emission for efficient non-invasive detection DOI
Xin Xie, Wanyin Ge, Siyao Wang

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 178097 - 178097

Published: Dec. 1, 2024

Language: Английский

Citations

1
Study on the Performance of Deep Red to Near-Infrared pc-LEDs by the Simulation Method Considering the Distribution of Phosphor Particles DOI Creative Commons
Chenghang Li,

Zikeng Fang,

Ying Yan

et al.

Micromachines, Journal Year: 2024, Volume and Issue: 15(8), P. 1035 - 1035

Published: Aug. 15, 2024

Effectively utilizing deep red to near-infrared (DR-NIR) phosphors achieve the optimal performance of NIR phosphor-converted white LEDs (DR-NIR pc-wLEDs) is currently a research hotspot. In this study, an optical model DR-NIR pc-wLEDs with virtual multilayer fluorescent films was established based on Monte Carlo ray-tracing method. Different gradient distributions particles were assigned within film explore their impact pc-LEDs. The results show that, for case single-type particles, distributing more far from blue LED chip increased overall radiant power. distribution near conversion ratio light. 707 nm fluorescence emission intensity 450 excitation light 1:0.51 1:0.28. For multiple-type changes in resulted dual-nature changes, leading deterioration color rendering index and increase correlated temperature, while also improving band ratio. reabsorption caused by partial overlap between other enhanced power at nm. Distributing phosphor closer effectively amplified effect. proposed its provide solution forward design particle improve luminous pc-wLEDs.

Language: Английский

Citations

0
Interstitial oxygen defect inducing near-infrared luminescence in Ca3La2W2O12 phosphor DOI
Weiping Qin, Peng Zhang,

Xuan Miao

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1010, P. 177970 - 177970

Published: Dec. 12, 2024

Language: Английский

Citations

0