Growth and optical properties of (Y1-xGdx)3Al5O12:Ce single crystal phosphors for high-brightness neutral white LEDs and LDs

被引：37
作者：
Arjoca, Stelian [1 ,2 ]
Inomata, Daisuke [3 ]
Matsushita, Yoshitaka [1 ]
Shimamura, Kiyoshi [1 ,2 ]
机构：
[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050044, Japan
[2] Waseda Univ, Grad Sch Adv Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan
[3] Tamura Corp, Sayama, Saitama 3501328, Japan
来源：
CRYSTENGCOMM | 2016年 / 18卷 / 25期
关键词：
LIGHT-EMITTING-DIODES; LUMINESCENCE PROPERTIES; YTTRIUM; GD; LN;
D O I：
10.1039/c6ce00500d
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
(Y1-xGdx)(3)Al5O12:Ce ((Y,Gd)(3)Al5O12:Ce) single crystal phosphors (SCPs) were successfully grown using the Czochralski method. The Gd segregation coefficient was determined. The lattice spacing, absorption and emission properties were systematically investigated as a function of Gd concentration in a wide temperature range. Gd incorporation red-shifts the SCP emission so that neutral white with correlated color temperatures in the range of 4098-6594 K can be achieved in conjunction with a blue light-emitting diode (LED). SCPs demonstrate high conversion efficiency (> 90% above 150 degrees C) and better thermal stability compared to analogous ceramic powders. Additionally, SCPs are compatible with resin-free packaging, overcoming drawbacks associated with powder encapsulants. Therefore, (Y,Gd)(3)Al5O12:Ce SCPs are promising candidates for high-brightness neutral white sources based on intense blue LEDs and laser diodes.
引用
收藏
页码：4799 / 4806
页数：8
相关论文
共 25 条
  • [1] Ce:(Y1-xLux)3Al5O12 single-crystal phosphor plates for high-brightness white LEDs/LDs with high-color rendering (Ra > 90) and temperature stability
    Arjoca, Stelian
    Villora, Encarnacion G.
    Inomata, Daisuke
    Aoki, Kazuo
    Sugahara, Yoshiyuki
    Shimamura, Kiyoshi
    [J]. MATERIALS RESEARCH EXPRESS, 2014, 1 (02):
  • [2] Temperature dependence of Ce:YAG single-crystal phosphors for high-brightness white LEDs/LDs
    Arjoca, Stelian
    Villora, Encarnacinon G.
    Inomata, Daisuke
    Aoki, Kazuo
    Sugahara, Yoshiyuki
    Shimamura, Kiyoshi
    [J]. MATERIALS RESEARCH EXPRESS, 2015, 2 (05):
  • [3] INVESTIGATION OF SOME CE3+-ACTIVATED PHOSPHORS
    BLASSE, G
    BRIL, A
    [J]. JOURNAL OF CHEMICAL PHYSICS, 1967, 47 (12) : 5139 - &
  • [4] Advances in transparent glass-ceramic phosphors for white light-emitting diodes-A review
    Chen, Daqin
    Xiang, Weidong
    Liang, Xiaojuan
    Zhong, Jiasong
    Yu, Hua
    Ding, Mingye
    Lu, Hongwei
    Ji, Zhenguo
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2015, 35 (03) : 859 - 869
  • [5] Light Converting Inorganic Phosphors for White Light-Emitting Diodes
    Chen, Lei
    Lin, Chun-Che
    Yeh, Chiao-Wen
    Liu, Ru-Shi
    [J]. MATERIALS, 2010, 3 (03): : 2172 - 2195
  • [6] Luminescent properties of cerium-activated garnet series phosphor: Structure and temperature effects
    Chiang, Chien-Chih
    Tsai, Ming-Shyong
    Hon, Min-Hsiung
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2008, 155 (06) : B517 - B520
  • [7] GROWTH AND LASER CHARACTERISTICS OF YTTRIUM-GADOLINIUM-ALUMINIUM GARNET SINGLE CRYSTALS
    COCKAYNE, B
    GASSON, DB
    FINDLAY, D
    GOODWIN, DW
    CLAY, RA
    [J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1968, 29 (06) : 905 - &
  • [8] Efficient and stable laser-driven white lighting
    Denault, Kristin A.
    Cantore, Michael
    Nakamura, Shuji
    DenBaars, Steven P.
    Seshadri, Ram
    [J]. AIP ADVANCES, 2013, 3 (07):
  • [9] THERMAL EXPANSION OF YTTRIUM AND GADOLINIUM IRON, GALLIUM AND ALUMINUM GARNETS
    GELLER, S
    ESPINOSA, GP
    CRANDALL, PB
    [J]. JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1969, 2 : 86 - +
  • [10] Synthesis and luminescence properties of a H2 annealed Mn-doped Y3Al5O12:Ce3+ single crystal for WLEDs
    Gu, Guorui
    Xiang, Weidong
    Yang, Cheng
    Liang, Xiaojuan
    [J]. CRYSTENGCOMM, 2015, 17 (24): : 4554 - 4561
123