Near-Unity and Zero-Thermal-Quenching Far-Red-Emitting Composite Ceramics via Pressureless Glass Crystallization

doi:10.1002/lpor.202100060

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	Near-Unity and Zero-Thermal-Quenching Far-Red-Emitting Composite Ceramics via Pressureless Glass Crystallization
	G. Zheng; W. Xiao; H. Wu; J. Wu; X. Liu and J. Qiu
刊名	Laser and Photonics Reviews
	2021
卷号	15 期号:7
ISSN号	18638880
DOI	10.1002/lpor.202100060
英文摘要	Laser-driven (LD) lighting is emerging as the next-generation high-power solid-state lighting technology. All-inorganic color converters with high quantum efficiency (QE), small thermal quenching, high thermal conductivity, and high thermal and chemical stabilities are crucial to coping with the enormous heat generated in LD lighting. Although luminescent translucent ceramics are the most promising class of color converters, only green/yellow-emitting ones with satisfactory performance are developed before. Here, a far-red-emitting composite ceramics Y3Al5O12 (YAG)Al2O3:Cr3+ with near-unity internal QE and zero-thermal quenching are prepared via pressureless glass crystallization, where the inside light scattering is finely tuned by simply manipulating the temperature to induce controllable grain growth. The commonly used inert matrix Al2O3 here becomes an optically active component as YAG, thus alleviating the undesired concentration quenching while maintaining strong light absorption. Therefore, a high-power LD far-red lighting source with luminescence saturation threshold up to 21.4 W mm2 is demonstrated, which may find broad applications in plant growth lighting, solar simulators, and phototherapy. 2021 Wiley-VCH GmbH
URL标识	查看原文
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/65451]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	G. Zheng,W. Xiao,H. Wu,et al. Near-Unity and Zero-Thermal-Quenching Far-Red-Emitting Composite Ceramics via Pressureless Glass Crystallization[J]. Laser and Photonics Reviews,2021,15(7).
APA	G. Zheng,W. Xiao,H. Wu,J. Wu,&X. Liu and J. Qiu.(2021).Near-Unity and Zero-Thermal-Quenching Far-Red-Emitting Composite Ceramics via Pressureless Glass Crystallization.Laser and Photonics Reviews,15(7).
MLA	G. Zheng,et al."Near-Unity and Zero-Thermal-Quenching Far-Red-Emitting Composite Ceramics via Pressureless Glass Crystallization".Laser and Photonics Reviews 15.7(2021).