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 41(12):1529-1537(2020)
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 41(12):1529-1537(2020) 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, such as automobile headlights and searchlights, and so on.
WANG Z P, CAO Y H, LIU Y Q, et al.. Effect of phosphor layer thickness on laser illumination[J].Chin. J. Lumin., 2016, 37(12):1484-1490. (in Chinese)
ZHU Q Q, WANG L, HIROSAKI N, et al.. Extra-broad band orange-emitting Ce3+-doped Y3Si5N9O phosphor for solid-state lighting:electronic, crystal structures and luminescence properties[J].Chem. Mater., 2016, 28(13):4829-4839.
LIN H, WANG B, WANG Y S. Research progress in the design, preparation, microstructure, and luminescent properties of the glass ceramics applicable to white light-emitting diode[J].Chin. J. Appl. Chem., 2016, 33(10):1126-1139. (in Chinese)
LIN H, HU T, CHENG Y, et al.. Glass ceramic phosphors:towards long-lifetime high-power white light-emitting-diode applications-a review[J].Laser Photon. Rev., 2018, 12(6):1700344-1-31.
LIN Z B, LIN H, XU J, et al.. A chromaticity-tunable garnet-based phosphor-in-glass color converter applicable in w-LED[J].J. Eur. Ceram. Soc., 2016, 36(7):1723-1729.
XIANG X Q, WANG B, LIN H, et al.. Towards long-lifetime high-performance warm W-LEDs:fabricating chromaticity-tunable glass ceramic using an ultra-low melting Sn-P-F-O glass[J].J. Eur. Ceram. Soc., 2017, 38(4):1990-1997.
ZHANG R, LIN H, YU Y L, et al.. A new-generation color converter for high-power white LED:transparent Ce3+:YAG phosphor-in-glass[J].Laser Photon. Rev., 2014, 8(1):158-164.
YOU S H, LI S X, ZHENG P, et al.. A thermally robust La3Si6N11:Ce-in-glass film for high-brightness blue-laser-driven solid state lighting[J].Laser Photon. Rev., 2018, 13(2):1800216-1-10.
CHEN Z H, ZHANG Q H, LI Y G, et al.. A promising orange-yellow-emitting phosphor for high power warm-light white LEDs:pure-phase synthesis and photoluminescence properties[J].J. Alloys Compd., 2017, 715:184-191.
ZHENG P, LI S X, WANG L, et al.. Unique color converter architecture enabling phosphor-in-glass (PiG) films suitable for high-power and high-luminance laser-driven white lighting[J].ACS Appl. Mater. Interfaces, 2018, 10(17):14930-14940.
DU F, ZHUANG W D, LIU R H, et al.. Synthesis, structure and luminescent properties of yellow phosphor La 3Si6N11:Ce3+ for high power white-LEDs[J].J. Rare Earths, 2017, 35(11):1059-1064.
KIJIMA N, SETO T, HIROSAKI N. A new yellow phosphor La3Si6N11:Ce3+ for white LEDs[J].ECS Trans., 2009, 25(9):247-252.
Preparation and Research Progress of Lead-free Perovskite Light Emitting Diodes
Application-oriented Design of Phosphors for Laser Lighting——Mini Review and Outlook
Optoelectronic Properties of InP/ZnSe/ZnS Quantum Dots with Different ZnSe Shell Layer Thicknesses
Effect of Laser Spot Regulation on Evaluation of Laser Phosphors
Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, and CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences
School of Electronics and Information Engineering， Sun Yat-sen University
School of Microelectronics， South China University of Technology
College of Electronic Engineering and Intelligence， Dongguan Institute of Technology
South China Academy of Advanced Optoelectronics， South China Normal University