National Natural Science Foundation of China;National Natural Science Foundation of China;National Natural Science Foundation of China;Chunmiao Project of the Haixi Institute of the Chinese Academy of Sciences
XIANG-MING YUE, HANG LIN, SHI-SHENG LIN, et al. La3Si6N11:Ce3+ Luminescent Glass Ceramics Applicable to High-power Solid-state Lighting. [J]. Chinese journal of luminescence, 2020, 41(12): 1529-1537.
DOI:
XIANG-MING YUE, HANG LIN, SHI-SHENG LIN, et al. La3Si6N11:Ce3+ Luminescent Glass Ceramics Applicable to High-power Solid-state Lighting. [J]. Chinese journal of luminescence, 2020, 41(12): 1529-1537. DOI: 10.37188/CJL.20200232.
La3Si6N11:Ce3+ Luminescent Glass Ceramics Applicable to High-power Solid-state Lighting
Towards the strong market demand for high power lightings
the all-inorganic fluorescent glass ceramics with excellent optical property and thermal/chemical stability are booming. In this work
a silicon-based nitride glass ceramic fluorescent conversion material embedded with La
3
Si
6
N
11
:Ce
3+
(LSN:Ce) phosphor was prepared based on a low temperature co-sintering method. It was demonstrated that LSN:Ce phosphor was less corroded by glass components during co-sintering
with its structure showing no obvious change
and so
good luminescent properties were retained with quantum efficiency of 79% and fluorescence integral intensity decreased only by ~14% at 150 ℃. The fabricated high-power white LED lighting source yields luminous efficacy of 54.8 lm/W
CCT of 5 712 K
CRI of 70.1
and chromaticity coordinate of (0.328 0
0.369 0)
upon 350 mA current driven. The constructed laser lighting source yields luminous flux of 118.48 lm
CCT of 7427 K
CRI of 56.2
and chromaticity coordinate of (0.298 2
0.322 6)
under 0.8 W excitation power. It was speculated that the thermal and light saturation phenomena occur in LSN:Ce fluorescent glass ceramics upon high-power blue laser excitation. After further optimization of material composition
preparation process
and device structure
LSN:Ce fluorescent glass ceramics are expected to be applicable to high-power lighting fields
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Single-emitting Layer White Organic Light-emitting Diodes with Blue HLCT Material of pCzAnN as Sensitizer Host
Fabrication and Performance Optimization of MgO-La3Si6N11∶Ce3+ Composite Phosphor-in-glass for Laser Lighting
Optical Properties of InP/GaP/ZnS Quantum Dots Processed with Hydrofluoric Acid and Their Application in Light Emitting Diodes
Fundamentals of Photometry for Luminescent Materials
Related Author
Xiang-ming YUE
Hang LIN
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Yao CHENG
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Yuan-sheng WANG
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TIAN Tiantian
Related Institution
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