Monolithic translucent BaMgAl10O17:Eu2+ phosphors for laser-driven solid state lighting

被引:39
作者
Cozzan, Clayton [1 ,2 ,3 ]
Brady, Michael J. [2 ]
O'Dea, Nicholas [3 ]
Levin, Emily E. [1 ,2 ]
Nakamura, Shuji [1 ,3 ]
DenBaars, Steven P. [1 ,3 ]
Seshadri, Ram [1 ,2 ,3 ,4 ]
机构
[1] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA
[2] Univ Calif Santa Barbara, Mat Res Lab, Santa Barbara, CA 93106 USA
[3] Univ Calif Santa Barbara, Solid State Lighting & Energy Elect Ctr, Santa Barbara, CA 93106 USA
[4] Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA
来源
AIP ADVANCES | 2016年 / 6卷 / 10期
基金
美国国家科学基金会;
关键词
ALUMINUM-GARNET YAG; GAN; COMMUNICATION; DENSIFICATION; CERAMICS; SYSTEM; DIODES;
D O I
10.1063/1.4964925
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
With high power light emitting diodes and laser diodes being explored for white light generation and visible light communication, thermally robust encapsulation schemes for color-converting inorganic phosphors are essential. In the current work, the canonical blue-emitting phosphor, high purity Eu-doped BaMgAl10O17, has been prepared using microwave-assisted heating (25 min) and densified into translucent ceramic phosphor monoliths using spark plasma sintering (30 min). The resulting translucent ceramic monoliths convert UV laser light to blue light with the same efficiency as the starting powder and provide superior thermal management in comparison with silicone encapsulation. (C) 2016 Author(s).
引用
收藏
页数:6
相关论文
共 23 条
[1]   Rapid Microwave Preparation of Highly Efficient Ce3+-Substituted Garnet Phosphors for Solid State White Lighting [J].
Birkel, Alexander ;
Denault, Kristin A. ;
George, Nathan C. ;
Doll, Courtney E. ;
Hery, Bathylle ;
Mikhailovsky, Alexander A. ;
Birkel, Christina S. ;
Hong, Byung-Chul ;
Seshadri, Ram .
CHEMISTRY OF MATERIALS, 2012, 24 (06) :1198-1204
[2]  
Brodrick J., 2014, TECH REP
[3]   High luminous flux from single crystal phosphor-converted laser-based white lighting system [J].
Cantore, Michael ;
Pfaff, Nathan ;
Farrell, Robert M. ;
Speck, James S. ;
Nakamura, Shuji ;
DenBaars, Steven P. .
OPTICS EXPRESS, 2016, 24 (02) :A215-A221
[4]   Transparent YAG ceramics by surface softening of nanoparticles in spark plasma sintering [J].
Chaim, R. ;
Marder-Jaeckel, R. ;
Shen, J. Z. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 429 (1-2) :74-78
[5]   Transparent yttrium aluminum garnet (YAG) ceramics by spark plasma sintering [J].
Chaim, Rachman ;
Kalina, Michael ;
Shen, James Z. .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2007, 27 (11) :3331-3337
[6]   An improved experimental determination of external photoluminescence quantum efficiency [J].
deMello, JC ;
Wittmann, HF ;
Friend, RH .
ADVANCED MATERIALS, 1997, 9 (03) :230-&
[7]   Efficient and stable laser-driven white lighting [J].
Denault, Kristin A. ;
Cantore, Michael ;
Nakamura, Shuji ;
DenBaars, Steven P. ;
Seshadri, Ram .
AIP ADVANCES, 2013, 3 (07)
[8]   Densification of transparent yttrium aluminum garnet (YAG) by SPS processing [J].
Frage, Naum ;
Kalabukhov, Sergey ;
Sverdlov, Nataliya ;
Ezersky, Vladimir ;
Dariel, Moshe P. .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2010, 30 (16) :3331-3337
[9]  
Garay JE, 2010, ANNU REV MATER RES, V40, P445, DOI [10.1146/annurev-matsci-070909-104433, 10.1146/annurev-matsci-070909-10443]
[10]   Phosphors for Solid-State White Lighting [J].
George, Nathan C. ;
Denault, Kristin A. ;
Seshadri, Ram .
ANNUAL REVIEW OF MATERIALS RESEARCH, VOL 43, 2013, 43 :481-501