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Efficient and Stable Gd3Ga5O12:Cr3+ Phosphors for High‐Performance NIR LEDs.
- Source :
-
Advanced Optical Materials . Nov2023, Vol. 11 Issue 21, p1-8. 8p. - Publication Year :
- 2023
-
Abstract
- Cr3+‐activated Gd3Ga5O12 garnet (GGG:Cr3+) near‐infrared (NIR) phosphors have shown promising applications in regulating plant growth. However, the low external quantum efficiency (EQE) results in a wall‐plug efficiency (WPE) of phosphor‐converted light‐emitting diodes (pc)‐LEDs of only ≈15%. Herein, an easy strategy to improve the luminescent properties of the GGG:Cr3+ phosphor is reported. Through optimization of the synthesized technology, the EQE is enhanced to 43.6%. Remarkably, the fabricated pc‐LEDs achieve a WPE as high as 34.3%. These results demonstrate a significant advancement in the development and applications of NIR phosphor materials and NIR pc‐LED devices. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 21951071
- Volume :
- 11
- Issue :
- 21
- Database :
- Academic Search Index
- Journal :
- Advanced Optical Materials
- Publication Type :
- Academic Journal
- Accession number :
- 173470119
- Full Text :
- https://doi.org/10.1002/adom.202300772