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Ultra-broadband near-infrared Gd3MgScGa2SiO12: Cr, Yb phosphors: Photoluminescence properties and LED applications
L. P. Jiang; X. Jiang; J. H. Xie; H. Y. Sun; L. L. Zhang; X. L. Liu; Z. H. Bai; G. C. Lv and Y. J. Su
2022
发表期刊Journal of Alloys and Compounds
ISSN0925-8388
卷号920页码:9
摘要Developing novel broadband near-infrared (NIR) phosphors is crucial to promote NIR phosphor-converted light emitting diodes (pc-LEDs) development. In this work, a new ultra-broadband NIR phosphor Gd3MgScGa2SiO12: Cr3+ (GMSGS) was achieved by replacing Sc3+-Ga3+ in Gd3MgScGa2SiO12 with Mg3+-Si3+. Under the excitation of blue light, the peak emission wavelength of GMSGS: 0.04Cr(3+)is about 820 nm with a full width at half maximum (FWHM) of >= 180 nm and an internal quantum efficiency (IQE) of 50 %. Benefited from the superposition of Cr3+ emission and highly efficient Yb3+ emission excited by energy transfer (ET) from Cr3+, the codoped GMSGS: 0.04Cr3+, 0.007Yb(3+) phosphor shows an ultra-broadband of 300 nm. Moreover, Yb3+-codoping improves the thermal stability due to the ET from Cr3+ to more thermally stable Yb3+ emitters, and the integrated intensity of GMSGS: 0.04Cr(3+), 0.007Yb(3+) at 400 K was 63 % of that at room temperature. The packaging results exhibit that ~20 mW output power was achieved at 100 mA input current, which suggests promising potential of GMSGS: Cr3+, Yb3+ phosphor in NIR pc-LED applications.(c) 2022 Published by Elsevier B.V.
DOI10.1016/j.jallcom.2022.165912
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收录类别sci ; ei
语种英语
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文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/67206
专题中国科学院长春光学精密机械与物理研究所
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L. P. Jiang,X. Jiang,J. H. Xie,et al. Ultra-broadband near-infrared Gd3MgScGa2SiO12: Cr, Yb phosphors: Photoluminescence properties and LED applications[J]. Journal of Alloys and Compounds,2022,920:9.
APA L. P. Jiang.,X. Jiang.,J. H. Xie.,H. Y. Sun.,L. L. Zhang.,...&G. C. Lv and Y. J. Su.(2022).Ultra-broadband near-infrared Gd3MgScGa2SiO12: Cr, Yb phosphors: Photoluminescence properties and LED applications.Journal of Alloys and Compounds,920,9.
MLA L. P. Jiang,et al."Ultra-broadband near-infrared Gd3MgScGa2SiO12: Cr, Yb phosphors: Photoluminescence properties and LED applications".Journal of Alloys and Compounds 920(2022):9.
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