采用中频感应提拉法生长了高质量的掺铈钒酸钇( Ce:YVO4)晶体,其中Ce3+离子的浓度为1.0％(原子分数).对于加工好的晶体薄片分别在中性气氛Ar和还原性气氛H2中不同温度下进行了退火处理.对退火后的样品进行了吸收光谱和荧光光谱的测量.中性Ar中退火对晶体发光效率提高没有作用,H2退火后晶体吸收谱发生显著变化,晶体的发光效率大幅提高.发射光谱中400 -600 nm的发射带包含两个发射峰,其中心波长分别在424和469 nm处.并对掺铈钒酸钇晶体作为白光材料的可能性进行了分析.
参考文献
| [1] | NaKamura S;MuKai T;Senoh M .Candela-class high brightness In GaN/AI GaN double-heterostructure blue-light-emitting diodes[J].Applied Physics Letters,1994,64(13):1687. |
| [2] | 曾琦华,张信果,梁宏斌,龚孟濂.白光LED用荧光粉的研究进展[J].中国稀土学报,2011(01):8-17. |
| [3] | 苏锵,吴昊,潘跃晓,徐剑,郭崇峰,张新民,张剑辉,王静,张梅.稀土发光材料在固体白光LED照明中的应用[J].中国稀土学报,2005(05):513-517. |
| [4] | Shimizu Yoshinori;Sakano Kensho;Noguchi Yasunobu;Moriguchi Toshio .Light emitting device having a nitride compound semiconductor and a phosphor containing a garnet fluorescent material[P].United States:US5998925,1997. |
| [5] | Franz Kummer;Franz Zwaschka;Andries Ellens;Alexandra Debray Guenther Waitl .Luminous substance for a light source and light source associates therewith[P].United States:US6669866,2000. |
| [6] | 鱼志坚;庄卫东;张书生;黄小卫 赵春雷 何华强 .含硼的白光LED用荧光粉及其制造方法和所制成的电光源[P].中国:CN 1544575,2003. |
| [7] | 庄卫东;龙震;胡运生;黄小卫 .一种荧光粉及其制造方法和所制成的电光源[P].中国:CN 101041775,2006. |
| [8] | 杨志平,赵方亮,李盼来,路亚娟,李小宁.Ca10（Si2O7）3Cl2：Eu2+Mn2+单-基质白光荧光粉的发光性质[J].中国稀土学报,2009(04):506-509. |
| [9] | XUE Yanna,XIAO Fen,ZHANG Qinyuan,JIANG Zhonghong.Synthesis and luminescent properties of polycrystalline Gd_2(MoO_4)_3:Dy~(3+) for white light-emitting diodes[J].稀土学报（英文版）,2009(05):753-757. |
| [10] | 周立亚,黄君丽,易灵红,龚孟濂,石建新.白光LED用荧光材料Ba3 Gd（ BO3 ）3：Eu3+的发光性能研究[J].中国稀土学报,2009(01):31-35. |
| [11] | LI Panlai,YANG Zhiping,WANG Zhijun,GUO Qinglin.Luminescent characteristics of LiCaBO3:Eu3+ phosphor for white light emitting diode[J].稀土学报（英文版）,2009(03):390-393. |
| [12] | 石连升,温猛,钱艳楠,王锐,郝铭.Yb：Er：Tm：LiTaO3的上转换发白光性能研究[J].中国稀土学报,2011(01):78-81. |
| [13] | Erdei S;Jin B M;Ainger F W;Keszei B Vandlik J Süveges A .Possible trends for the growth of low scattering Nd:YVO4 laser crystals;phase relations-growth techniques[J].Journal of Crystal Growth,1997,172(03):466. |
| [14] | 李敢生,吴喜泉,位民,诸月梅,俞振森,滕硕,王建国.大尺寸优质钒酸钇（YVO4）双折射晶体生长[J].人工晶体学报,1999(01):27-30. |
| [15] | Dorenbos P. .The 5d level positions of the trivalent lanthanides in inorganic compounds [Review][J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2000(3-4):155-176. |
| [16] | 阮永丰,卢树华,张守超,李广慧,李文润.掺铈钒酸钇晶体的生长及光学性质的研究[J].人工晶体学报,2006(03):501-503,500. |
| [17] | Ruan Yongfeng;Zhang Shouchao;Lu Shuhua;Li Guanghui,Li Wentun,Liu Jingwang .Growth and spectrum properties of Ce:YVO4 single crystal[J].Journal of Rare Earths,2007,25(Suppl):122. |
| [18] | 张连翰,杭寅,孙敦陆,钱小波,李世锋,殷绍唐.钒酸钇晶体中的颜色问题[J].人工晶体学报,2003(01):24-26. |
| [19] | 符史流,柴飞,周涛,张汉焱.Ce4+和 Eu3+共掺杂的Ca2SnO4发光材料的合成与光谱特性[J].无机化学学报,2009(01):76-80. |
| [20] | Pauwels D.;Viana B.;Kahn-Harari A.;van Loef EVD. Dorenbos P.;van Eijk CWE.;Le Masson N. .A novel inorganic scintillator: Lu2Si2O7 : Ce3+ (LPS)[J].IEEE Transactions on Nuclear Science,2000(6 Pt.1):1787-1790. |
| [21] | 冯鹤,丁栋舟,李焕英,陆晟,潘尚可,陈晓峰,张卫东,任国浩.退火对提拉法生长Lu2Si2O7：Ce晶体闪烁性能的影响[J].无机材料学报,2009(05):1054-1058. |
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