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绿色钒酸盐荧光粉Ca5Mg4(VO4)6的制备和发光性能
作者:刘昊 阮健 韩建军 赵修建 
单位:硅酸盐建筑材料国家重点实验室 武汉理工大学 武汉 430070 
关键词:钒酸盐荧光粉 制备工艺 发光性能 白光发光二极管 
分类号:TQ171
出版年,卷(期):页码:2013,41(3):334-341
DOI:
摘要:

摘  要:采用固相反应法合成了绿色钒酸盐荧光粉Ca5Mg4(VO4)6,采用X射线衍射、扫描电子显微镜、X射线能量色散谱仪、Raman光谱仪和荧光分光光度计对荧光粉的相组成、形貌和发光性能进行表征。讨论了烧结温度和热处理温度对荧光粉发光性能的影响。结果表明,经热处理制得单一相荧光粉Ca5Mg4(VO4)6,荧光粉颗粒呈短柱状,直径约为2 μm,长度约为5 μm。在近紫外激发下荧光粉的发射峰位于510 nm处,最强激发峰为365 nm。随着烧结温度的升高,荧光粉的发射光谱(PL)和激发光谱(PLE)强度增大,激发峰值位置有红移;随着热处理温度的升高,荧光粉的PL和PLE强度先增大后减小,激发峰值位置仍有明显红移。其中,在700 ℃烧结5 h和900 ℃热处理8 h所制得的荧光粉在365 nm激发下发光强度最高。

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Abstract: Green-emitting vanadate phosphor Ca5Mg4(VO4)6 was synthesized via a solid-state reaction route. The phase composition, morphology and photoluminescence properties of the synthesized phosphors were characterized by X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, Raman spectroscopy, and fluorescence spectrophotometer, respectively. The influences of firing temperature and heat-treatment on photoluminescence properties of the phosphor were investigated. The results indicate that single phase of Ca5Mg4(VO4)6 is obtained after heat treatment. The phosphor particles showed a short cylindroid with the length of about 5 μm and the diameter of about 2 μm. All the phosphors had an intensive green emission peak at about 510 nm under 365 nm excitation. The intensity of photoluminescence (PL) and photoluminescence excitation (PLE) increased, and the position of excitation peak exhibited a red-shift with the increase of the firing temperature. The intensity of PL and PLE firstly increased and then decreased, and the position of excitation peak howbeit appeared a red-shift with the increase of the heat treatment temperature. The phosphor fired at 700 ℃ for 5 h and subsequent heat-treated at 900 ℃ for 8 h had greatest emission intensity under 365 nm excitation.

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基金项目:
“973”计划前期研究专项(2011CB612202);中央高校基本科研业务费专项资金资助(2012-IV-023);新世纪优秀人才支持计划资助(NCET-08-0807)。
作者简介:
第一作者:刘 昊(1987—),男,硕士研究生。 通信作者:阮 健(1982—),男,博士,副研究员。
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参考文献:

参考文献:
[1]  SHUR M S. 固体照明导论[M]. 北京: 化学工业出版社, 2006: 28–105.
[2]  ZHANG H, LU M, XIU Z, et al. Synthesis and photoluminescence properties of a new red emitting phosphor: Ca3(VO4)2:Eu3+, Mn2+ [J]. Mater Res Bull, 2007, 42(6): 1145–1152.
[3]  李伟, 邱克辉, 李钧甫, 等. Mg2+浓度对CaxMgy(VO4)n:Eu3+发光性能的影响[J]. 材料导报, 2011, 25(6): 23–25.
LI Wei, QIU Kehui, LI Junpu, et al. Mater Rev (in Chinese), 2011, 25(3): 23–25.
[4]  CHOI S, MOON Y M, KIM K, et al. Luminescent properties of a novel red-emitting phosphor: Eu3+-activated Ca3Sr3(VO4)4 [J]. J Lumin, 2009, 129(9): 988–990.
[5]  曹帅. 碱土七钒酸盐发光材料的制备及发光性质研究[D]. 合肥: 安徽大学, 2010.
CAO Shuai. The synthesize and performance study of alkaline earth metal seven vanadates luminescent materials (in Chinese, dissertation). Hefei: Anhui University, 2010.
[6]  王斌. 紫外和真空紫外光激发下铕掺杂的钒酸盐发光特性与结构的关系[D]. 兰州: 兰州大学, 2007.
WANG Bin. Relationship between Eu3+ doped vanadate phosphors properties and its crystal structure under ultraviolet and vacuum-ultraviolet excitation (in Chinese, dissertation). Lanzhou: Lanzhou University, 2007.
[7]  SLOBODIN B V, SURAT L L, ZUBKOV V G, et al. Structural, luminescence, and electronic properties of the alkaline metal-strontium cyclotetravanadates M2Sr(VO3)4(M = Na, K, Rb, Cs)[J]. Physl Rev B, 2005, 72: 155205(1–12).
[8]  SHIM K S, YANG H K, CHUNG J W, et al. Crystal field effects on the photoluminescence properties of Y1–xLaxVO4:Eu3+ phosphors [J]. Appl Phys A, 2011, 104: 383–386.
[9]  NAKAJIMA T, ISOBE M, TSUCHIYA T, et al. Correlation between luminescence quantum efficiency and structural properties of vanadate phosphors with chained, dimerized, and isolated VO4 tetrahedra [J]. J Phys Chem C, 2010, 114: 5160–5167.
[10]  HUANG Y L, YU Y M, TSUBOI T J, et al. Novel yellow-emitting phosphors of Ca5M4(VO4)6(M = Mg, Zn) with isolated VO4 tetrahedra [J]. Opt Exp, 2012, 20(4): 4360–4368.
[11]  金晶, 夏海瑞, 孙尚倩, 等. Nd:YbVO4晶体的拉曼光谱和荧光光谱研究[J]. 人工晶体学报, 2008, 37(6): 1330–1336.
JIN Jing, XIA Hairui, SUN Shangqian, et al. J Synth Cryst (in Chinese), 2008, 37(6): 1330–1336.
[12]  FROST R L, CRANE M, WILLIAMS P A, et al. Isomorphic substitution in vanadinite [Pb5(VO4)Cl]—a Raman spectroscopic study [J]. J Raman Spectrosc, 2003, 34(3): 214–220.
[13]  林丹. 无机–有机过度金属硼氧酸盐、钒氧酸盐的合成、晶体结构和振动光谱[D]. 西安: 西安电子科技大学, 2009.
LIN Dan. Synthesis, crystal structure and vibrational spectrum of inorganic-organic transition metal borate and vanadate (in Chinese, dissertation). Xi’an: Xidian University, 2009.
[14]  张洪武. 纳米稀土钒酸盐、磷酸盐发光材料的合成及性质研究[D]. 大连: 中国科学院大连化学物理研究所, 2005.
ZHANG Hongwu. Synthesis and characterization of nanosized rare vanadate and rare phosphate luminescence materials (in Chinese, dissertation). Dalian: Dalian Institute of Chemical Physics, Chinese Academy of Science, 2005.
[15]  胡方. 钒酸盐化合物的水热合成及电化学性质研究[D]. 长春: 吉林大学, 2009.
HU Fang. Hydrothermal preparation and electrochemical properties of vanadate compounds (in Chinese, dissertation). Changchun: Jilin University, 2009.
[16]  胡大伟. 若干钨酸盐、钒酸盐激光拉曼晶体性能研究[D]. 济南: 山东大学, 2007.
HU Dawei. Property research on some tunstate and vanadate raman laser crystals (in Chinese, dissertation). Jinan: Shandong University, 2007.
[17]  QIU K H, LI J F, LI J F. Luminescence property of Ca3(VO4)2:Eu3+ dependence on molar ratio of Ca/V and solution combustion synthesis temperature [J]. J Mater Sci, 2010, 45: 5456–5462.
[18]  SUN J Y, SUN R D, SUN J F, et al. Photoluminescence studies on a new red emitting Sm3+-doped alkaline-earth vanadate phosphor: Ca3Sr3(VO4)4:Sm3+,Na+ [J]. Optoelectron Adv Mater Rapid Commun, 2011, 5(3): 215–219.
[19]  SOLE J G, BAUSA L E, JAQUE D. An introduction to the optical spectroscopy of inorganic solids [M]. United States: John Wiley & Sons, Ltd, 2005: 1–48.
[20]  TANG Yusheng, HU Shufen, LIN C C, et al. Thermally stable luminescence of KSrPO4:Eu2+ phosphor for white light UV light-emitting diodes [J]. Appl Phys Lett, 2007, 90: 151108(1–3).
[21]  李建宇. 稀土发光材料及应用[M]. 北京: 化学工业出版社, 2003: 23–105.
[22]  谢文杰. 白光LED用硅基氧氮化物荧光粉的研究[D]. 合肥: 中国科技技术大学, 2010.
XIE Wenjie. Preparation and luminescence property of oxonitridosilicate phosphor for white light LED (in Chinese, dissertation). Hefei: University of Science and Technology of China, 2010.

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