| 495 | 13 | 36 |
| 下载次数 | 被引频次 | 阅读次数 |
采用高温固相法制备Sr3SiO5:Eu2+荧光粉,利用X射线衍射分析方法和光致光谱分析方法研究样品的物相组成、激发光谱和发射光谱。研究摩尔比n(Sr)/n(Si)、助熔剂BaF2质量、煅烧温度及Eu2+掺量等对样品物相形成和发光性能的影响。结果表明最佳实验参数为:n(Sr)/n(Si)=3、BaF2为1%、煅烧温度为1 380℃、Eu2+摩尔掺量为7%。在体积分数Ф(N2)/Ф(H2)=90/10的混合气氛条件下煅烧6 h,可获得单一物相的Sr3SiO5:Eu2+荧光粉,样品发出强的橘黄光,峰值位于569 nm,激发光谱是300 nm到520 nm的宽带谱,在蓝光区激发强度较高。
Abstract：Phosphor Sr3SiO5:Eu2 + was prepared by high temperature solid state reaction method.X-ray diffraction and photolumi-nescent spectroscopy were used to study crystalline phase,and emission and excitation spectra of samples.Effects of mole ratio n(Sr)/n(Si),mass fraction of fluxing agents BaF2,calcination temperature,and Eu2+ dosages in mole on phase formation and lumines-cence properties were investigated.Results indicate that the optimal experimental parameters are n(Sr)/n(Si) of 3%,BaF2 content of 1%,calcination temperature of 1 380 ℃,and Eu2+ dosage of 7%.Phosphor Sr3SiO5:Eu2+ with pure phase was fabricated under an at-mosphere with a volume fraction of ?(N2)/?(H2) = 90/10 for 6 h.The phosphor exhibits a strong yellow emission centering at 569 nm and a broadband excitation spectrum ranging from 300–520 nm with strong excitation in the blue band.
[1]徐叙瑢,苏勉曾.发光学与发光材料[M].北京:化学工业出版社,2004:321–400.XU Xurong,SU Mianzeng.Luminescence and Luminescent Material(in Chinese).Beijing:Chemical Industry Press,2004:321–400.
[2]NARUKAWA Y,NIKI I,IZUNO K,et al.Phosphor-conversion whitelight emitting diode using InGaN near-ultraviolet chip[J].Appl PhysLett,2002,41(4):371–373.
[3]徐时清,金尚忠,王宝玲.固体照明光源:白光LED的研究进展[J].中国计量学院学报,2006,17(3):188–191.XU Shiqing,JIN Shangzhong,WANG Baoling.J Chin Jiliang Univ(inChinese),2006,17(3):188–191.
[4]周志敏,周继海,纪爱华.LED照明技术与应用电路[M].北京:电子工业出版社,2009:25–29.ZHOU Zhimin,ZHOU Jihai,JI Aihua.The Lighting Technology andApplied Electrical Circuit(in Chinese).Beijing:Electrical industrypress,2009:25–29.
[5]方志烈.半导体照明技术[M].北京:电子工业出版社,2009:315–336.FANG Zhilie.The Lighting Technology of the Semiconductor(in Chi-nese).Beijing:Electrical Industry Press,2009:315–336.
[6]AITASALO T,DEREN P,HOLSA J,et al.Persistent luminescencephenomena in matetials doped with rare-earth ions[J].J Solid StateChem,2003,171:114–122.
[7]何南玲.YAG黄色荧光粉的合成与性能研究[D].重庆:重庆大学,2006.HE Nanling.Study on synthesis and performance of YAG yellowphosphors for white LED(in Chinese,dissertation).Chongqing:Chong-qing University,2006.
[8]孙海鹰.Re3+(Nd3+,Ce3+):YAG超细粉体合成及光谱性能研究[D].长春:长春理工大学,2009.SUN Haiying.Synthesis and spetroscopic properties of Re3+(Nd3+,Ce3+):YAG ultra-fine powders(in Chinese,dissertation).Changchun:Changchun University of Science and Technology,2009.
[9]ROSARIO D,OHARA S,MANCIC L,et al.Characterization ofYAG:Ce powders thermal treated at different temperatures[J].ApplSurf Sci,2004,238:469–474.
[10]LI Qiang,GAO Lian,YAN Dongsheng.The crystal structure andspectra of nano-scale YAG:Ce3+[J].Mater Chem Phys,2000,64:41–44.
[11]SUN Xiaoyuan,ZHANG Jiahua,ZHANG Xia,et al.Long lastingyellow phosphorescence in Sr3SiO5:Eu2+and Sr3SiO5:Eu2+,Dy3+phos-phors[J].J Chin Lumin,2008,29(4):665–669.
[12]罗昔贤,曹望和,孙菲,等.硅酸盐基质白光LED用宽激发带发光材料研究进展[J].科学通报,2008,53(9):1010–1016.LUO Xixian,CAO Wannghe,SUN Fei,et al.Chin Sci Bull(in Chi-nese),2008,53(9):1010–1016.
[13]肖志国,罗昔贤.蓄光型发光材料及其制品[M].北京:化学工业出版社,2005:9–23.XIAO Zhiguo,LUO Xixian.Long Afterglow Luminescent Materialsand the Related Applications(in Chinese).Beijing:Chemical IndustryPress,2005:9–23.
[14]Wei-Hisiang,SHENG Meng-Huei,TSAI Ming-Shyong.Preparation ofEu-activated strontium orthosilicate(Sr1.95SiO4:Eu0.05)phosphor by asol–gel method and its luminescent properties[J].J Alloys Compd,2009,467:491–495.
[15]SUN Xiaoyuan,ZHANG Jiahua,ZHANG Xia,et al.Photoluminescentproperties of Sr2SiO4:Eu2+phosphor for white light emitting diodes[J].J Optoelectron Laser,2008,19(5):1482–1485.
[16]李盼来,杨志平,王志军,等.Sr3SiO5:Eu2+材料光谱特性研究[J].光子学报,2008,37(10):2001–2004.LI Panlai,YANG Zhiping,WANG Zhijun,et al.Acta Optica Sin(inChinese),2008,37(10):2001–2004.
[17]LI Panlai,WANG Zhijun,YANGzhiping,et al.Preparation and lumi-nescence characteristics of Sr3SiO5:Eu3+phosphor for white LEDs[J].J Chin Ceram Soc,2009,37(3):462–464.
[18]张秋红.黄色、橙色、红色系列长波发射荧光粉发光性质研究[D].广州:中山大学,2010.ZHANG Qiuhong.The luminescent property research on the yellow,orange and red phosphors(in Chinese,dissertation).Guangzhou:Zhongshan University,2010.
[19]杨翼,金尚忠,沈常宇,等.白光LED用金属硅酸盐荧光粉的光谱性质[J].发光学报,2008,29(5):800–804.YANG Yi,JIN Shangzhong,SHEN Changyu,et al.J Chin Lumin(inChinese),2008,29(5):800–804.
[20]王细凤,温嘉琪,夏威,等.发光二极管用荧光粉Sr2–xBaxSiO4:Eu的制备、发光性能及应用[J].硅酸盐学报,2008,36(8):1119–1123.WANG Xifeng,WEN Jiaqi,XIA Wei,et al.J Chin Ceram Soc(inChinese),2008,36(8):1119–1123.
[21]ZHANG Xiyan,ZHANG Liangliang,ZHANG Yunpeng,et al.Effectsof different fluxing agents on the luminescent properties of Eu2+-dopedalkaline earth silicate phosphor[J].J Chin Ceram Soc,2010,38(2):206–210.
[22]WANG Jilei,WANG Dajian,LI Lan,et al.Preparation of single hostsilicate phosphors for white LEDs and its photo luminescent properties[J].J Chin Lumin,2006,27(8):463–468.
[23]石春山,叶泽人.Eu2+离子在固体中的发光[J].发光与显示,1982,25(4):1–10.SHI Chunshan,YE Zeren.J Chin Lumin(in Chinese),1982,25(4):1–10.
基本信息:
DOI：10.14062/j.issn.0454-5648.2011.09.003
中图分类号:O482.31
引用信息:
[1]高兵,张希艳,于娜,等.Sr_3SiO_5:Eu~(2+)荧光粉相形成的影响因素及发光特性[J].硅酸盐学报,2011,39(09):1389-1394.DOI:10.14062/j.issn.0454-5648.2011.09.003.
基金信息:
吉林省科技发展计划(20080511,20090348)资助项目
2011-08-29
2011-08-29
2011-08-29