Preparation and Luminous Property of Ga2-xO2SO4:xEu3+ Red Phosphors

ZHOU Xin-mu; ZHANG Shi-han; XU Xiao-tian; LI Yong-xiu

doi:10.3788/fgxb20133404.0411

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Preparation and Luminous Property of Ga_2-xO₂SO₄:xEu³⁺ Red Phosphors

更新时间：2020-08-12

- Preparation and Luminous Property of Ga_2-xO₂SO₄:xEu³⁺ Red Phosphors
- Chinese Journal of Luminescence Vol. 34, Issue 4, Pages: 411-415(2013)
- 作者机构：
  
  南昌大学化学系,江西南昌,330031
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20133404.0411
  CLC： O482.31
- Received：23 November 2012，
  
  Revised：19 January 2013，
  
  Published Online：10 December 2012，
  
  Published：10 April 2013
- 稿件说明：
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周新木, 张诗晗, 徐孝天, 李永绣. 铕掺杂硫酸氧钆红色荧光粉的制备及发光性能[J]. 发光学报, 2013,34(4): 411-415

ZHOU Xin-mu, ZHANG Shi-han, XU Xiao-tian, LI Yong-xiu. Preparation and Luminous Property of Ga2-xO2SO4:xEu3+ Red Phosphors[J]. Chinese Journal of Luminescence, 2013,34(4): 411-415
周新木, 张诗晗, 徐孝天, 李永绣. 铕掺杂硫酸氧钆红色荧光粉的制备及发光性能[J]. 发光学报, 2013,34(4): 411-415 DOI： 10.3788/fgxb20133404.0411.

ZHOU Xin-mu, ZHANG Shi-han, XU Xiao-tian, LI Yong-xiu. Preparation and Luminous Property of Ga2-xO2SO4:xEu3+ Red Phosphors[J]. Chinese Journal of Luminescence, 2013,34(4): 411-415 DOI： 10.3788/fgxb20133404.0411.

摘要

采用共结晶-高温煅烧法和共混合-高温煅烧法合成了Gd

系列荧光粉

用XRD、SEM和荧光光谱分析技术对样品的晶体结构、表面形貌及发光性能进行表征。结果表明:两种方法在950℃合成的Gd

系列荧光粉都具有单一物相

在紫外波长激发下都发出618 nm红光。然而

发光强度和粒子特性存在差异

共结晶-高温煅烧法比共混合-高温煅烧法合成的样品显示出更强的红光和较好的粒子形貌。最佳的铕掺杂量

=0.10

最佳煅烧温度为950℃。荧光粉的粒度在500 nm左右。

Abstract

A series of fluorescent powders of Gd

have been synthesized by two methods: the co-crystallization followed by calcinations (CCC) method and the co-mixture followed by calcinations (CMC) method. The as-prepared phosphors were examined by means of X-ray diffraction (XRD)

scanning electron spectroscopy (SEM) and photoluminescence spectrometer (PLS). The results show that Gd

phosphors with single crystalline phase have been successfully prepared with both methods at calcinations temperature around 950℃

and emit red light at 618 nm under ultraviolet exitation. However

the emission strength and particle characterization are different. It is proved that the phosphors prepared by CCC method have stronger red emission and better morphogy of the particles than that by CMC method. The optimal Eu doping content and calcinations temperature are determined to be

=0.1 and 950℃. The particle size of as-synthesized phosphors is around 500 nm.

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Keywords

references

Ekambaram S, Patil K C, Maaza M. Synthesis of lamp phosphors:Facile combustion approach [J]. J. Alloys Compd., 2005, 393(1/2):81-85.[2] Mikhailik V B, Bailiffl K, Kraus H, et al. Two photonexcitation and luminescebcnce of a CaWO4 scintillator [J]. Radiat. Meas., 2004, 38(46):585-588.[3] Zhou X M, Zeng H H. Synthesis and characterization of new long lasting red phosphors Y2O2S:Eu,Si,M(M=Mg, Ca, Sr, Ba) [J]. Chin. J. Lumin.(发光学报), 2010, 31(1):59-63 (in Chinese).[4] Ma C S, Gao Y Z, Wang P, et al. Synthesis and luminescent properties of LiGd(MoO4):Eu3+ red phosphors for white LEDs [J]. Chin. J. Lumin.(发光学报), 2010, 31(3):311-315 (in Chinese).[5] Lin C C, Lin K M, Li Y Y. Sol-gel synthesis and photoluminescent characteristics of Eu3+ -doped Gd2O3 nanophosphors [J]. J. Lumin., 2007, 126( 2):795-799.[6] Li X P, Zhong H Y, Cheng L H, et al. Synthesis and photoluminescence of NaGdTiO4:Eu3+ red phosphors for white LEDs [J]. Chin. J. Lumin.(发光学报), 2012, 32(2):311-315 (in Chinese).[7] Meng Q Y, Zhang Q, Li M, et al. Study of concentration dependence of luminescent properties for Eu3+ doped CaWO4 red phosphors [J]. Acta Phys. Sinica (物理学报), 2012, 61(10):107804-1-8 (in Chinese).[8] Zhong Y J, Liu M Q, Li Z M, et al. Synthesis and photoluminescence properties of YVO4:Eu3+,Al3+ phosphors [J]. J. Chin. Rare Earth Soc.(中国稀土学报), 2011, 29(4):445-449 (in Chinese).[9] Xu X R, Su M Z. Luminescence and Luminescent Material [M]. Beijing: Chemical Industry Press, 2004 (in Chinese).[10] Kazuhiko K, Yuhei M, Johiyuki M, et al. Synthesis of new green emitting phosphors besed on rare earth oxycarbouates [J]. J. Alloys Compd., 2006, 418(1/2):230-233.[11] Lian J B, Sun X D, Li X D, et al. Synthesis, characterization and photoluminescence properties of (Gd1-xEux)2O2SO4 sub-microphosphors by homogeneous precipitation method [J]. Mater. Chem. Phys., 2011, 125:479-484.[12] Lian J B, Sun X D, Liu Z G, et al. Synthesis and optical properties of (Gd1-x,Eux)2O2SO4 nano-phosphors by a novel co-precipitation method [J]. Mater. Res. Bull., 2009, 44(9):1822-1827.

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