Cyan-green-emitting Ca3Sc2Si3O12:Ce3+ transparent ceramics: A promising color converter for high-brightness laser lighting

doi:10.26599/jac.2023.9220782

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	Cyan-green-emitting Ca3Sc2Si3O12:Ce3+ transparent ceramics: A promising color converter for high-brightness laser lighting
	H. J. Wu, H. Wu, G. H. Pan, L. L. Zhang, Z. D. Hao and J. H. Zhang
	2023
发表期刊	Journal of Advanced Ceramics
ISSN	2226-4108
卷号	12 期号:9 页码:1731-1741
摘要	Transparent phosphor ceramics have received increasing attention for high-brightness laser lighting, but commercially available phosphor ceramics are currently mainly limited to yellow YAG:Ce and green LuAG:Ce garnets, leaving a "cyan cavity" which is an obstacle to realizing full-color lighting. Achieving new phosphor ceramics capable of filling the cavity is a challenge. Herein, for the first time, cyan-green-emitting Ca3Sc2Si3O12:Ce3+ (CSS:Ce) transparent ceramics have been successfully developed by two-step sintering technique under vacuum. The as-prepared CSS:Ce ceramics present high relative density of 99.7% and optical transmittance of 71% in the cyan-green spectral region. It exhibits an efficient band emission peaking at 504 nm (under 450 nm excitation) with internal/external quantum efficiency of 91%/62%. Furthermore, it has excellent thermal stability with a thermal quenching temperature (T0.5) of 838 K, approximately 100 K higher than that of LuAG:Ce ceramics (738 K). In addition, the CSS:Ce ceramics can withstand blue laser density of 45.6 W/mm(2) and meanwhile generates cyan-green light with a forward luminous flux of 813 lm and forward luminous efficacy of 162 lm/W. The CSS:Ce transparent ceramics exhibit excellent luminescence performance comparable to the commercial LuAG:Ce ceramics and could be a highly promising color converter for high-brightness laser lighting.
DOI	10.26599/jac.2023.9220782
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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/181722/68022
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	H. J. Wu, H. Wu, G. H. Pan, L. L. Zhang, Z. D. Hao and J. H. Zhang. Cyan-green-emitting Ca3Sc2Si3O12:Ce3+ transparent ceramics: A promising color converter for high-brightness laser lighting[J]. Journal of Advanced Ceramics,2023,12(9):1731-1741.
APA	H. J. Wu, H. Wu, G. H. Pan, L. L. Zhang, Z. D. Hao and J. H. Zhang.(2023).Cyan-green-emitting Ca3Sc2Si3O12:Ce3+ transparent ceramics: A promising color converter for high-brightness laser lighting.Journal of Advanced Ceramics,12(9),1731-1741.
MLA	H. J. Wu, H. Wu, G. H. Pan, L. L. Zhang, Z. D. Hao and J. H. Zhang."Cyan-green-emitting Ca3Sc2Si3O12:Ce3+ transparent ceramics: A promising color converter for high-brightness laser lighting".Journal of Advanced Ceramics 12.9(2023):1731-1741.

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