Sr1-yEuySi2O2-zN2+2z/3的 发光性质及其在白光LED上的应用

张 梅; 丁唯嘉; 王 静; 苏 锵

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Sr_1-yEu_ySi₂O_2-zN_2+2z/3的发光性质及其在白光LED上的应用

论文 | 更新时间：2020-08-12

- Sr_1-yEu_ySi₂O_2-zN_2+2z/3的发光性质及其在白光LED上的应用
- Optical Properties of Sr_1-yEu_ySi₂O_2-zN_2+2z/3 Phosphors and Their Applications in White LED
- 发光学报 2010年31卷第1期页码：31-38
- 作者机构：
  
  1. 五邑大学功能材料研究所,广东江门,529020
  2. 中山大学化学与化学工程学院,广东广州,510275
  3. 华南农业大学理学院,广东广州,510642
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： O482.31
- 收稿日期：2009-04-01，
  
  修回日期：1900-01-02，
  
  网络出版日期：2010-02-20，
  
  纸质出版日期：2010-02-20
- 稿件说明：
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张梅, 丁唯嘉, 王静, 等. Sr_1-yEu_ySi₂O_2-zN_2+2z/3的发光性质及其在白光LED上的应用[J]. 发光学报, 2010,31(1):31-38.

ZHANG Mei, DING Wei-jia, WANG Jing, et al. Optical Properties of Sr_1-yEu_ySi₂O_2-zN_2+2z/3 Phosphors and Their Applications in White LED[J]. Chinese journal of luminescence, 2010, 31(1): 31-38.
张梅, 丁唯嘉, 王静, 等. Sr_1-yEu_ySi₂O_2-zN_2+2z/3的发光性质及其在白光LED上的应用[J]. 发光学报, 2010,31(1):31-38. DOI：

ZHANG Mei, DING Wei-jia, WANG Jing, et al. Optical Properties of Sr_1-yEu_ySi₂O_2-zN_2+2z/3 Phosphors and Their Applications in White LED[J]. Chinese journal of luminescence, 2010, 31(1): 31-38. DOI：

摘要

采用高温固相法合成出系列黄绿色Sr

1-y

2-z

2+2z/3

荧光材料

进行了光学性质表征并探索了其在LED上的应用。在Eu

掺杂浓度为0~0.200范围内

所合成的化合物为系列色坐标可调的黄绿光-黄光连续固溶体

在250~500 nm具有高的激发效率

激发和发射光谱位置及其发射强度随Eu

浓度改变产生规律性变化;利用光谱理论系统研究了Eu

的最低5d吸收能级、5d轨道重心移动、晶体场分裂和Stokes位移对激发和发射光谱位置、半峰全宽和荧光寿命的影响及其相互关系。该类荧光材料在77~425 K具有良好的温度特性

425 K时的发射强度为77 K的58%左右。首次将它们和近紫外LED(~400 nm)、蓝光LED(~460 nm)封装成高亮度黄绿光和黄光LED以及白光LED

发光效率高达19 lm/W

这些封装的LED的发光性能也随着Eu

浓度

以及粉胶比例变化而呈规律性变化。

Abstract

A series of Sr

1-y

2-z

2+2z/3

phosphors were synthesized by the high-temperature solid-state reaction and characterized systematically.The X-ray powder diffraction analysis confirms the formation of a solid solution of Sr

1-y

2-z

2+2z/3

phosphor for Eu concentration from 0 to 0.2. The photoluminescence properties show that the phosphors can be efficiently excited by UV-visible light from 250 to 500 nm and exhibit intense tunable yellowish green light due to Eu concentration. The relationship among the lowest 5d absorption bands

Stocks shifts

the centroid shifts and splitting of Eu

levels was studied in details. The temperature dependent emission spectra in the temperature range of 77~450 K show that they have a high thermal quenching temperature above 450 K. The LED based on UV/blue chip and Sr

1-y

2-z

2+2z/3

phosphors were encapsulated firstly

which show intense green

white and lower UV light emission. Their luminescent properties agree well with these phosphors. The luminous efficiency of the fabricated LED can reach 19 lm/W and the white LED can be obtained from the phosphors fabricated with blue chip based on different gel concentration. These results indicate that Sr

1-y

2-z

2+2z/3

phosphors are promising candidates for solid-state lighting LED.

关键词

Keywords

references

. Van Krevel J W H, Hintzen H T, Metselaar R, et al. Long wavelength Ce3+ emission in Y-Si-O-N materials [J]. J. Alloys Compd., 1998, 268 (1-2):272-277.

. Hoppe H A, Lutz H, Morys P, et al. Luminescence in Eu2+-doped Ba2Si5N8: fluorescence, thermoluminescence, and upconversion [J]. J. Phys. Chem. Solids., 2000, 61 (11):2001-2006.

. Mueller M R, Mueller G O, Schmidt P J. Nitridosilicates, a new family of phosphors for color conversion of LEDs [J]. SPIE, 2005, 5941 :59410Z-1-8.

. Sakuma K, Omichi K, Kimura N, et al. Warm-white light-emitting diode with yellowish orange SiAlON ceramic phosphor [J]. Opt. Lett., 2004, 29 (17):2001-2003.

. Chen W W, Su X L, Wang P L. Comparison of the luminescence properties of Dy3+ in a-sialon and oxynitride glass [J]. J. Am. Ceram. Soc., 2005, 88 (10):2955-2956.

. Graaf D de, Hintzen H T, With G de. The influence of the composition on the luminescence of Ce(Ⅲ)-Ln-Si-Al-O-N glasses (Ln=Sc, Y, La, Gd) [J]. J. Lumin., 2003, 104 (1-2):131-136.

. Xie R J, Hirosaki N, Mitomo M. Photoluminescence of rare-earth-doped Ca-α-SiAlON phosphors:composition and concentration dependence [J]. J. Am. Ceram. Soc., 2005, 88 (10):2883-2888.

. Piao X Q, Machida K, Horikawa T. Preparation of CaAlSiN3 ∶ Eu2+ phosphors by the self-propagating high-temperature synthesis and their luminescent properties [J]. Chem. Mater., 2007, 19 (18):4592-4599.

. Toquin R Le, Cheetham A K. Red-emitting cerium-based phosphor materials for solid-state lighting applications [J].Chem. Phys. Lett., 2006, 423 (4-6):352-356

. Xie R J, Hirosaki N. 2-phosphor-converted white light-emitting diodes using oxynitride-nitride phosphors [J]. Appl. Phys. Lett., 2007, 90 (19):191101-1-3.

. Sakuma K, Hirosaki N. Kimura N. et al. White light-emitting diode lamps using oxynitride and nitride phosphor materials [J]. Ieice Trans. Electron., 2005, E88-C (11):2057-2064.

. Xie R J, Hirosaki N. Silicon-based oxynitride and nitride phosphors for white LEDs-A review [J]. Sci. Technol. Adv. Mater., 2007, 8 (7-8):588-600.

. Li Y Q, With G de, Hintzen H T. Luminescence of a new class of UV-blue-emitting phosphors MSi2O2-δN2+2δ/3 ∶ Ce3+ (M=Ca, Sr, Ba) [J]. J. Mater. Chem., 2005, 15 (42):4492-4496.

. Li Y Q, Delsing A C A, With G de, et al. Luminescence properties of Eu2+-activated alkaline-earth silicon-oxynitride MSi2O2-δN2+2δ/3(M=Ca, Sr, Ba): A promising class of novel LED conversion phosphors [J]. Chem. Mater., 2005, 17 (12):3242-3248.

. Bachmanna V, Justela T, Meijerink A, et al. Luminescence properties of SrSi2O2N2 doped with divalent rare earth ions [J]. J. Lumin., 2006, 121 (2):441-449.

. Yun B G, Miyamoto Y, Yamamoto H. Luminescence properties of (Sr1-uBau)2SiO4 ∶ Eu2+ , yellow or orange phosphors for white LEDs, synthesized with (Sr1-uBau)2SiO4 ∶ Eu2+ as a precursor [J]. J. Electrochem. Soc., 2007, 154 (10):J320-J325.

. Huang Zhenkun, Sun Weiying, Yan Dongsheng. Phase relation of the Si3N4-AlN-CaO system [J]. J. Mater. Sci. Lett., 1985, 4 (3):255-259.

. Zhu W H, Wang P L, Sun W Y, et al. Phase relationships in the Sr-Si-O-N system [J]. J. Mater. Sci. Lett., 1994, 13 (8):560-562.

. Hoppe H A, Stadler F, Oeckler O, et al. Ca —A novel layer silicate [J]. Angew. Chem. Int. Ed., 2004, 43 (41):5540 -5542.

. Oeckler O, Stadler F, Rosenthal T, et al. Real structure of SrSi2O2N2 [J]. Solid State Sciences, 2007, 9 (2):205-212.

. Stadler, Oeckler O, Hppe H A, et al. Crystal structure, physical properties and HRTEM investigation of the new oxonitridosilicate EuSi2O2N2 [J]. Chem. Eur. J., 2006, 12 (26):6984-6990.

. Yamashita N. Luminescence centers of Ca(S ∶ Se) phosphors activated with impurity ions having s2 configuration. I. Ca(S ∶ Se) ∶ Sb3+ phosphors [J]. J. Phys. Soc. Jpn., 1973, 35 :1089-1097.

. Meijerink A, Blasse G. Luminescence properties of Eu2+-activated alkaline earth haloborates [J]. J. Lumin., 1989, 43 (5):283-289.

. Dorenbos P. f→d transition energies of divalent lanthanides in inorganic compounds [J]. J. Phys.: Condens. Matter, 2003, 15 (3):575-594.

. Dorenbos P. Energy of the first 4f7→4f65d transition of Eu2+ in inorganic compounds [J]. J. Lumin., 2003, 104 (4):239-260.

. Nazarov M, Yoon C. Controlled peak wavelength shift of Ca1-xSrx(SySe1-y) ∶ Eu2+ phosphor for LED application [J]. J. Solid State Chem., 2006, 179 (8):2529-2533.

. Benalloul P, Barthou C, Benoit J. SrGa2S4 ∶ RE phosphors for full colour electroluminescent displays [J]. J. Alloy. Compd., 1998, 275-277 :709-715.

. Shionoya S, Yen W M. Phosphor Handbook [M]. New York: CRC Press, 1998.

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