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Efficient Blue–Violet Phosphor with Small Stokes-Shift for Full-Spectrum Lighting
Laser & Photonics Reviews ( IF 9.8 ) Pub Date : 2023-10-16 , DOI: 10.1002/lpor.202300342 Yuhe Shao 1 , Hao Cai 1 , Fangyi Zhao 1 , Zhen Song 1 , Quanlin Liu 1
Laser & Photonics Reviews ( IF 9.8 ) Pub Date : 2023-10-16 , DOI: 10.1002/lpor.202300342 Yuhe Shao 1 , Hao Cai 1 , Fangyi Zhao 1 , Zhen Song 1 , Quanlin Liu 1
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Blue–violet phosphor is an essential component to realize full spectrum lighting on the basis of commercial 365 nm N-UV chip excitation. However, its development falls behind since the phosphor with small stokes-shift (ΔS) is hard to realize. Herein, a new blue–violet phosphor SrSc4Si5O17:Ce3+ with small ΔS (∼30 nm) is presented. SrSc4Si5O17:Ce3+ emits bright blue–violet luminescence peaking at 390 nm, and the internal/external quantum efficiency can reach 73.4%/50.4% under 365 nm excitation. The unique luminescence performance of the phosphor is related closely to its crystal structure. The host-referred bind energy (HRBE) diagram is also successfully constructed to illustrate its thermal quenching behavior. Finally, the packaged white light-emitting diodes based on the 365 nm N-UV chip, SrSc4Si5O17:Ce3+, and other high-performance phosphors have an ultra-high color rendering index (Ra = 95.9), indicating that SrSc4Si5O17:Ce3+ is a potential candidate for various applications, including indoor healthy lighting and agricultural lighting.
中文翻译：
具有小斯托克斯位移的高效蓝紫色荧光粉，适用于全光谱照明
蓝紫荧光粉是在商用365 nm N-UV芯片激发的基础上实现全光谱照明的重要组成部分。然而，由于小斯托克斯位移( ΔS )的荧光粉难以实现，其发展滞后。在此，提出了一种具有小ΔS （~30 nm）的新型蓝紫色荧光粉SrSc 4 Si 5 O 17 :Ce 3+ 。SrSc 4 Si 5 O 17 :Ce 3+发出明亮的蓝紫光，峰值波长为390 nm，在365 nm激发下，内/外量子效率可达73.4%/50.4%。荧光粉独特的发光性能与其晶体结构密切相关。还成功构建了主体参考结合能（HRBE）图来说明其热猝灭行为。最后，基于365 nm N-UV芯片、SrSc 4 Si 5 O 17 :Ce 3+等高性能荧光粉封装的白光发光二极管具有超高显色指数（Ra = 95.9） ，表明SrSc 4 Si 5 O 17 :Ce 3+是各种应用的潜在候选者，包括室内健康照明和农业照明。
更新日期：2023-10-16
中文翻译：
具有小斯托克斯位移的高效蓝紫色荧光粉，适用于全光谱照明
蓝紫荧光粉是在商用365 nm N-UV芯片激发的基础上实现全光谱照明的重要组成部分。然而，由于小斯托克斯位移( ΔS )的荧光粉难以实现，其发展滞后。在此，提出了一种具有小ΔS （~30 nm）的新型蓝紫色荧光粉SrSc 4 Si 5 O 17 :Ce 3+ 。SrSc 4 Si 5 O 17 :Ce 3+发出明亮的蓝紫光，峰值波长为390 nm，在365 nm激发下，内/外量子效率可达73.4%/50.4%。荧光粉独特的发光性能与其晶体结构密切相关。还成功构建了主体参考结合能（HRBE）图来说明其热猝灭行为。最后，基于365 nm N-UV芯片、SrSc 4 Si 5 O 17 :Ce 3+等高性能荧光粉封装的白光发光二极管具有超高显色指数（Ra = 95.9） ，表明SrSc 4 Si 5 O 17 :Ce 3+是各种应用的潜在候选者，包括室内健康照明和农业照明。
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