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Probing Local Structural Changes by Sharp Luminescent Infrared Nanophosphor for Application in Light-Emitting Diodes
Abstract
Cr3+-doped infrared phosphors are promising candidates for next-generation phosphor-converted infrared light-emitting diodes (LEDs) because they can, in principle, tune and convert the luminescence spectra from an LED chip. However, most studies focus on broad-band Cr3+-doped phosphors, and the control mechanism of Cr3+-doped phosphors with sharp line emissions remains ambiguous. Here, we report LiGa5(1–x)Al5xO8:Cr3+ phosphors with sharp line emissions. The luminescence analysis reveals the subtle change of the local structure around Cr3+, which cannot be well resolved by X-ray diffraction. The deviation between the temperature-dependent photoluminescence and decay profile is introduced as well. Furthermore, the morphologies of LiGa5(1–x)Al5xO8:Cr3+ phosphors with high aluminum concentration demonstrate their great potential for mini-LED applications. Finally, an LED package is constructed, and it reveals the potential for angiographic applications. This study opens up a new understanding and perspective for Cr3+-doped sharp emission phosphors and reveals their potential for LED applications.
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Authors (8)
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Sebastian Mahlik
- Institute of Experimental Physics, Faculty of Mathematics, Physics and Informatics, University of Gdansk
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Natalia Majewska
- Institute of Experimental Physics, Faculty of Mathematics, Physics and Informatics, University of Gdansk
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Mu-huai Fang
- Research Center for Applied Sciences, Academia Sinica, Taipei11529, Taiwan
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Hsu Jia-yu
- Research Center for Applied Sciences, Academia Sinica, Taipei11529, Taiwan
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Ren-jei Chung
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (TAIPEI TECH), Taipei10608, Taiwan
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Sheu Hwo-shuenn
- National Synchrotron Radiation Research Center, Hsinchu300, Taiwan
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Lee Jyh-fu
- National Synchrotron Radiation Research Center, Hsinchu300, Taiwan
Cite as
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
CHEMISTRY OF MATERIALS
no. 34,
pages 11903 - 11100,
ISSN: 0897-4756 - Language:
- English
- Publication year:
- 2022
- Bibliographic description:
- Kreft D., Mahlik S., Majewska N., Fang M., Jia-Yu H., Chung R., Hwo-Shuenn S., Jyh-Fu L.: Probing Local Structural Changes by Sharp Luminescent Infrared Nanophosphor for Application in Light-Emitting Diodes// CHEMISTRY OF MATERIALS -Vol. 34,iss. 24 (2022), s.11903-11100
- DOI:
- Digital Object Identifier (open in new tab) 10.1021/acs.chemmater.2c03224
- Sources of funding:
-
- Free publication
- Verified by:
- Gdańsk University of Technology
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