CaYAlO<sub>4</sub>: Tb<sup>3+</sup>绿色荧光粉的低温燃烧合成及发光性能

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摘要以尿素为燃料,乙二醇为络合剂,采用低温燃烧法合成CaYAlO₄: Tb³⁺绿色发光荧光粉。根据荧光粉的物相组成,确定最佳的合成温度和尿素用量;对荧光粉的形貌与发光效果进行观察与测试,并研究Tb³⁺掺杂量对荧光粉发光性能的影响。结果表明：尿素与基质物质CaYAlO₄的最佳比例n(CH₄N₂O):n(Ca)为3:1,最佳合成温度为800 ℃。合成的CaY_0.96AlO₄: 0.04Tb³⁺绿色荧光粉为球形颗粒,直径约为15 nm。荧光粉的激发光谱主要由O^2-→Y³⁺和O^2-→Tb³⁺宽带激发带构成,激发峰波长265 nm;发射光谱由位于490,545,586和620 nm的发射尖峰构成,为Tb³⁺的⁵D₄→⁷F_J(J=6,5,4,3)跃迁,545 nm跃迁强度最大,荧光粉发绿光。Tb³⁺的最佳掺杂浓度(摩尔分数)为0.06,浓度猝灭是由交换相互作用引起的。在紫外265 nm激发下,CaY_0.96AlO₄: 0.06Tb³⁺荧光粉发射光谱的色坐标为(0.320,0.363),在CIE1931色度图上位于绿-黄-白光交界处,是一种潜在的LED用单掺杂绿光发光材料。

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	王淑雪
	邓靖宇
	余龙
	罗虎
	高晓风
	朱德生

关键词 ：低温燃烧法, CaYAlO₄: Tb³⁺, 荧光粉, 激发光谱, 发射光谱

Abstract：The CaYAlO₄: Tb³⁺ green luminescent phosphors were synthesized by low temperature combustion using urea as fuel and ethylene glycol as complexing agent. The structures of the phosphors were analyzed by XRD to determine the optimum synthesis temperature and urea dosage. The morphology and luminescent effect of phosphors were observed and tested, the effects of the amount of Tb³⁺ doping on the luminescence properties of the phosphor were investigated. The results show that the optimum ratio of urea to CaYAlO₄ is n(CH4N₂O):n(Ca)=3:1, and the optimum synthesis temperature is 800 ℃. The synthesized samples are spherical particles with a diameter of about 15 nm. The excitation spectra of the phosphors is mainly composed of a broadband excitation band of O^2-→Y³⁺, O^2-→Tb³⁺, the excitation peak wavelength is 265 nm. The emission spectra consists of excitation peaks at 490, 545, 586 and 620 nm, which are derived from the ⁵D₄ to ⁷F_J(J=6, 5, 4, 3) transition of Tb³⁺, respectively. The 545 nm transition intensity is the largest and the phosphor glows green. The optimum doping concentration of Tb³⁺ is 0.06%. The concentration quenching is caused by exchange interaction. Under the excitation of UV 265 nm, the color coordinate of the emission spectrum of CaY_0.96AlO₄: 0.06Tb³⁺ phosphor is (0.320, 0.363), which is located at the junction of green-yellow-white light on the CIE1931 chromaticity diagram, and it is a potential single-doped green luminescent material for LED.

Key words： low temperature combustion method CaYAlO₄: Tb³⁺ phosphor excitation spectra emission spectra

收稿日期: 2018-11-27 出版日期: 2019-07-11

ZTFLH:	TB34
	O482.31

基金资助:长江大学创新训练计划资助项目(2018172); 湖北省教育厅科研计划资助项目(B2018027)

通讯作者: 朱德生,讲师,博士。电话：18986692895;E-mail: dshzhu@csu.edu.cn

引用本文:

王淑雪, 邓靖宇, 余龙, 罗虎, 高晓风, 朱德生. CaYAlO₄: Tb³⁺绿色荧光粉的低温燃烧合成及发光性能[J]. 粉末冶金材料科学与工程, 2019, 24(3): 282-288.
WANG Shuxue, DENG Jingyu, YU Long, LUO Hu, GAO Xiaofeng, ZHU Desheng. Low temperature combustion synthesis and luminescence properties of CaYAlO₄: Tb³⁺ green phosphors. Materials Science and Engineering of Powder Metallurgy, 2019, 24(3): 282-288.

链接本文:

http://pmbjb.csu.edu.cn/CN/ 或 http://pmbjb.csu.edu.cn/CN/Y2019/V24/I3/282

[1] RAO C N R, GANGULY P, SINGH K K, et al. A comparative study of the magnetic and electrical properties of perovskite oxides and the corresponding two-dimensional oxides of K₂NiF₄ structure[J]. Journal of Solid State Chemistry, 1988, 72(1): 14-23.
[2] PAN Yu, WANG Wenjun, ZHU Yuhan, et al.Eu^3+/2+ co-doping system induced by adjusting Al/Y ratio in Eu doped CaYAlO₄: preparation, bond energy, site preference and ⁵D₀-⁷F₄ transition intensity[J]. RSC Advances, 2018, 8(42): 23981-23989.
[3] 陈彩花, 杨国辉, 梁利芳, 等. 溶胶凝胶法合成CaYAlO₄: Mn⁴+红色荧光粉及其荧光性能研究[J]. 发光学报, 2017, 38(5): 567-573.
CHEN Caihua, YANG Guohui, LIANG Lifang, et al.Luminescent properties of CaYAlO₄: Mn⁴+ red phosphors prepared by sol-gel method[J]. Chinese Journal of Luminescence, 2017, 38(5): 567-573.
[4] ZHOU Dahua, XU Xiaodong, CHEN Xueyuan, et al.Crystal growth and spectroscopic properties of Er³+-doped CaYAlO₄[J]. Physica Status Solidi, 2013, 209(4): 730-735.
[5] XIAO Y, CHEN X M, LIU X Q.Microstructures and microwave dielectric characteristics of CaRAlO₄ (R=Nd, Sm, Y) ceramics with tetragonal K₂NiF₄ structure[J]. Journal of the American Ceramic Society, 2004, 87(11): 2143-2146.
[6] 侯晓君, 肖薇, 李永锟, 等. 1 645 nm陶瓷激光共振泵浦Tm: CaYAlO₄激光器[J]. 激光与红外, 2016, 46(1): 44-47.
HOU Xiaojun, XIAO Wei, LI Yongkun, et al.1645 nm ceramic laser resonanuy pumped Tm: CaYAlO₄ laser[J]. Laser & Infrared, 2016, 46(1): 44-47.
[7] TAN W D, TANG D Y, XU X D, et al.Room temperature diode-pumped Yb: CaYAlO₄ laser with near quantum limit slope efficiency[J]. Laser Physics Letters, 2011, 8(3): 193-196.
[8] CHEN Qiaoling, LÜ Shaozhen.White light emission in Pr³+, Tb³+:CaYAlO₄ phosphor[J]. Optoelectronics Letters, 2015, 11(5): 370-374.
[9] WANG Wanyan, YAN Xiuli, WU Xing, et al.Study of single-crystal growth of Tm³+: CaYAlO₄ by the floating-zone method[J]. Journal of Crystal Growth, 2000, 219(1/2): 56-60.
[10] LI Dongzhen, XU Xiaodong, CHENG Yan, et al.Crystal growth and spectroscopic properties of Yb: CaYAlO₄ single crystal[J]. Journal of Crystal Growth, 2010, 312(14): 2117-2121.
[11] GENG Dongling, LI Guogang, SHANG Mengmeng, et al.Nanocrystalline CaYAlO₄: Tb³+/Eu³+ as promising phosphors for full-color field emission displays[J]. Dalton Transactions, 2012, 41(10): 3078-3086.
[12] LI Xu,YANG Zhiping, GUAN Li, et al.A new yellowish green luminescent material SrMoO₄: Tb³+[J]. Materials Letters, 2009, 63(12): 1096-1098.
[13] 翟永清, 李瑞方, 李璇, 等. SrMoO₄: Tb³+绿色发光材料的微波辐射法合成及发光性能[J]. 硅酸盐学报, 2014, 42(3): 314-320.
ZHAI Yongqing, LI Ruifang, LI Xuan, et al.Synthesis of green-emitting phosphors SrMoO₄: Tb³+ by microwave radiation method and their luminescent properties[J]. Journal of the Chinese Ceramic Society, 2014, 42(3): 314-320.
[14] 关丽, 左金改, 刘冲, 等. Tb³+浓度对SrMoO₄: Tb³+发光性能的影响[J]. 发光学报, 2011, 32(8): 779-783.
GUAN Li, ZUO Jingai, LIU Chong, et al.Influence of Tb³+ concentration on the luminescent properties of SrMoO₄: Tb³+[J]. Chinese Journal of Luminescence, 2011, 32(8): 779-783.
[15] WU Hongyue, YANG Junfeng, WANG Xiaoxue, et al.Tune color of single-phase LiGd(MoO₄)₂-_x(WO₄)_x: Sm³+, Tb³+ via adjusting the proportion of matrix and energy transfer to create white-light phosphor[J]. Solid State Sciences, 2018, 77: 20-26.
[16] CHANU T T T, SINGH N R. Investigation on optical band gap, photoluminescence properties and concentration quenching mechanism of Pb₁-_xTb³+_xWO₄ green-emitting phosphors[J]. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2018, 191: 539-546.
[17] SUN Haiqin, ZHANG Qiwei, LI Wenxin.(Bi_0.5Na_0.5)TiO₃:Tb³+: A new green emission multifunctional ferroelectric material[J]. Ferroelectrics, 2016, 490(1): 127-135.
[18] ZHAO Ji, ZHAO Dan, CHEN Jun, et al.Synthesis and luminescence properties of novel green-emitting KPb₄(PO₄)₃: xTb³+ phosphor[J]. Journal of the Iranian Chemical Society, 2018, 15: 2631-2635.
[19] ZHANG Bingye, YJING Shitian, HAN Lu, et al.Color-tunable phosphor of Sr₃YNa(PO₄)₃F: Tb³+ via interionic cross-relaxation energy transfer[J]. RSC Advances, 2018, 8(45): 25378-25386.
[20] LUKAS G, FEDERICA F, BIEKE O, et al.Recovery of rare earths from the green lamp phosphor LaPO₄: Ce³+, Tb³+ (LAP) by dissolution in concentrated methanesulphonic acid[J]. RSC Advances, 2018, 8(46): 26349-26355.
[21] CHENG Ju, ZHANG Jia, LU Jian, et al.Luminescence and energy transfer properties of color-tunable Sr₄La(PO₄)₃O: Ce³+, Tb³+, Mn²+ phosphors for WLEDs[J]. Optical Materials Express, 2018, 8(7): 1850-1862.
[22] MENDHE M S, PUPPALWAR S P, DHOBLE S J.Novel single-component CaLaAlO₄: Tb³+, Eu³+ phosphor for white light-emission[J]. Optical Materials, 2018, 82: 47-55.
[23] RODRIGUES L C V, BRITO H F, Ho?lsä J, et al. Discovery of the persistent luminescence mechanism of CdSiO₃: Tb³+[J]. The Journal of Physical Chemistry C, 2012, 116(20): 11232-11240.
[24] ZHOU Xiao, JIANG Sha, XIANG Guotao, et al.Tunable emission color of Li₂SrSiO₄: Tb³+ due to cross-relaxation process and optical thermometry investigation[J]. Journal of the American Ceramic Society, 2018, 101(7): 3076-3085.
[25] PERRELLA R V, SCHIAVON M A, PECORARO E, et al.Broadened band C-telecom and intense upconversion emission of Er³+/Yb³+ co-doped CaYAlO₄ luminescent material obtained by an easy route[J]. Journal of Luminescence, 2016, 178: 266-233.
[26] BARTIC M, KOMINAMI H, NAKANISHI Y, et al.Properties of CaYAlO₄: Eu³+ phosphors[J]. Advanced Materials Research, 2011, 222: 231-234.
[27] LI Xu, GUAN Li, SUN Mingsheng, et al.Luminescent properties of Dy³+ doped SrMoO₄ phosphor[J]. Journal of Luminescence, 2011(131): 1022-1025.