Ling-li HEI, Shu-xing LI, Xuan CHENG, et al. Effect of Laser Spot Regulation on Evaluation of Laser Phosphors[J]. Chinese journal of luminescence, 2021, 42(10): 1646-1652.
DOI:
Ling-li HEI, Shu-xing LI, Xuan CHENG, et al. Effect of Laser Spot Regulation on Evaluation of Laser Phosphors[J]. Chinese journal of luminescence, 2021, 42(10): 1646-1652. DOI: 10.37188/CJL.20210132.
Effect of Laser Spot Regulation on Evaluation of Laser Phosphors增强出版
The newly-emerging laser lighting technology shows great advantages of high brightness
high luminous flux and long lifetime
which therefore attracts more attention for use in high-beam headlamps
cinema projectors and endoscopy. In this technology
the size of laser spots has a large effect on the proper evaluation of laser phosphors
but it is usually neglected and lack of deep investigations. In this paper
we conducted a survey on the influence of the spot size on the maximum output luminous flux
luminous saturation threshold
color temperature
color coordinates
and light uniformity of Y
3
Al
5
O
12
∶Ce
3+
-Al
2
O
3
(YAG∶Ce-Al
2
O
3
) phosphor films for laser lighting. It reveals that the laser spot size does have a vital effect on optical properties of laser phosphors
and needs to be carefully considered. This work provides a general guideline for standardizing the performance evaluation of laser phosphors.
关键词
Keywords
references
SCHUBERT E F , KIM J K . Solid-state light sources getting smart [J]. Science , 2005 , 308 ( 5726 ): 1274 - 1278 .
PUST P , SCHMIDT P J , SCHNICK W . A revolution in lighting [J]. Nat. Mater. , 2015 , 14 ( 5 ): 454 - 458 .
JR WIERER J J , TSAO J Y , SIZOV D S . Comparison between blue lasers and light-emitting diodes for future solid-state lighting [J]. Laser Photonics Rev. , 2013 , 7 ( 6 ): 963 - 993 .
PIMPUTKAR S , SPECK J S , DENBAARS S P , et al . Prospects for LED lighting [J]. Nat. Photon. , 2009 , 3 ( 4 ): 180 - 182 .
STEIGERWALD D A , BHAT J C , COLLINS D , et al . Illumination with solid state lighting technology [J]. IEEE J. Sel. Top. Quant. Electron. , 2002 , 8 ( 2 ): 310 - 320 .
SONG Y H , JI E K , JEONG B W , et al . High power laser-driven ceramic phosphor plate for outstanding efficient white light conversion in application of automotive lighting [J]. Sci. Rep. , 2016 , 6 ( 1 ): 31206-1-7 .
ABU-AGEEL N , ASLAM D . Laser-driven visible solid-state light source for etendue-limited applications [J]. J. Disp. Technol. , 2014 , 10 ( 8 ): 700 - 703 .
LI S X , WANG L , HIROSAKI N , et al . Color conversion materials for high-brightness laser-driven solid-state lighting [J]. Laser Photonics Rev. , 2018 , 12 ( 12 ): 1800173-1-29 .
RONDA C R , JÜSTEL T , NIKOL H . Rare earth phosphors: fundamentals and applications [J]. J. Alloys Compd. , 1998 , 275-277 : 669 - 676 .
RAUKAS M , KELSO J , ZHENG Y , et al . Ceramic phosphors for light conversion in LEDs [J]. ECS J. Solid State Sci. Technol. , 2013 , 2 ( 2 ): R3168 - R3176 .
余宪恩 . 实用发光材料与光致发光机理 [M]. 北京 : 中国轻工业出版社 , 1997 .
YU X E . Applied Luminescent Materials and Mechanism of Photoluminescence [M]. Beijing : China Light Industry Press , 1997 . (in Chinese)
LENEF A , KELSO J , TCHOUL M , et al . Laser-activated remote phosphor conversion with ceramic phosphors [C]. Proceedings of SPIE 9190, Thirteenth International Conference on Solid State Lighting , San Diego , 2014 : 91900C .
JOSHI B , KSHETRI Y K , GYAWALI G , et al . Transparent Mg-α/β-Sialon∶Eu2+ ceramics as a yellow phosphor for pc-WLED [J]. J. Alloys Compd. , 2015 , 631 : 38 - 45 .
JI E K , SONG Y H , BAK M K , et al . The design of a ceramic phosphor plate with functional materials for application in high power LEDs [J]. J. Mater. Chem. C , 2015 , 3 ( 48 ): 12390 - 12393 .
LI S X , ZHU Q Q , TANG D M , et al . Al2O3-YAG∶Ce composite phosphor ceramic: a thermally robust and efficient color converter for solid state laser lighting [J]. J. Mater. Chem. C , 2016 , 4 ( 37 ): 8648 - 8654 .
YAO Q , HU P , SUN P , et al . YAG∶Ce3+ transparent ceramic phosphors brighten the next-generation laser-driven lighting [J]. Adv. Mater. , 2020 , 32 ( 19 ): 1907888-1-7 .
YOSHIMURA K , ANNEN K , FUKUNAGA H , et al . Optical properties of solid-state laser lighting devices using SiAlON phosphor-glass composite films as wavelength converters [J]. Jpn. J. Appl. Phys. , 2016 , 55 ( 4 ): 042102-1-5 .
WANG H , MOU Y , PENG Y , et al . Fabrication of phosphor glass film on aluminum plate by using lead-free tellurite glass for laser-driven white lighting [J]. J. Alloys Compd. , 2020 , 814 : 152321 .
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 .
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 Photonics Rev. , 2019 , 13 ( 2 ): 1800216-1-10 .
YOU S H , LI S X , WANG L , et al . Ternary solid solution phosphors Ca1-x-yLixAl1-x-ySi1+x+yN3-yOy∶Ce3+ with enhanced thermal stability for high-power laser lighting [J]. Chem. Eng. J. , 2021 , 404 : 126575 .
XIA Y H , LI S X , ZHANG Y X , et al . Discovery of a Ce3+-activated red nitride phosphor for high-brightness solid-state lighting [J]. J. Mater. Chem. C , 2020 , 8 ( 41 ): 14402 - 14408 .
ZHENG P , LI S X , WEI R , et al . Unique design strategy for laser-driven color converters enabling superhigh-luminance and high-directionality white light [J]. Laser Photonics Rev. , 2019 , 13 ( 10 ): 1900147-1-10 .