采用高温固相法合成了Ca2SiO3Cl2∶Eu3+红色发光材料.利用X射线分析了材料的晶体结构,其为四方晶系;在400nm近紫外光激发下,材料呈红色发射,主发射峰位于582、599、623、655和691nm,分别对应Eu3+的5D0→7F0、7F1、7F2、7F3和7F4特征跃迁;监测599nm最强发射峰,激发光谱覆盖200～450nm,主激发峰位于400nm.研究了Eu3+摩尔浓度对Ca2SiO3Cl2∶Eu3+材料发射强度的影响,结果显示,随Eu3+浓度的增大,强度先增大、后减小,Eu3+浓度为1%时,强度最大.引入Li+后,材料的发射强度进一步增大.
参考文献
| [1] | Nakamura S;Fasol G.The Blue Laser Diode[M].Beilin:Springer-Verlag,1997:1. |
| [2] | Qi F X;Wang H B;Zhu X Z .[J].Journal of Rare Earths,2005,23(04):397. |
| [3] | Jang H S;Kang J H;Wonm Sora et al.[J].Applied Physics Letters,2007,90:071908-0711-3. |
| [4] | Li P L;Wang Z J;Yang Z P et al.[J].Chinese Physics Letters,2009,26(04):047801-0471-3. |
| [5] | Li P L;Pang L B;Wang Z J et al.[J].Journal of Alloys and Compounds,2009,478(9-10):813. |
| [6] | Li P L;Yang Z P;Wang Z J et al.[J].Chinese Science Bulletin,2008,53(07):974. |
| [7] | Xu Li;Zhiping Yang;Li Guan;Chong Liu;Panlai Li .Luminescent properties of Eu~(3+)-doped La_2Mo_2O_9 red phosphor by the flux method[J].Journal of Crystal Growth,2008(12):3117-3120. |
| [8] | Chang C K;Chen T M .[J].Applied Physics Letters,2007,91:081902-081901. |
| [9] | Guo CF;Luan L;Ding X;Huang DX .Luminescent properties of SrMg2(PO4)(2): Eu2+, and Mn2+ as a potential[J].Applied physics, A. Materials science & processing,2008(2):327-331. |
| [10] | Piao X Q;Horikawa T;Hanzawa H et al.[J].Applied Physics Letters,2005,86:211905-211901. |
| [11] | Sun LD.;Liao CS.;Wang XL.;Yan CH.;Qian C. .Luminescent proper-ties of Li+ doped nanosized Y2O3 : Eu[J].Solid State Communications,2001(6):393-396. |
| [12] | Dexter D L;Schulman J H .[J].Journal of Chemical Physics,1954,22(05):1063. |
| [13] | Li P L;Wang Z J;Yang Z P et al.[J].Materials Letters,2009,63(07):751. |
| [14] | Yu X B;Xu X L;Zhou C L et al.[J].Materials Research Bulletin,2006,41:1578. |
| [15] | Tian LH.;Mho S. .Enhanced luminescence of SrTiO3 : Pr3+ by incorporation of Li+ ion[J].Solid State Communications,2003(11/12):647-651. |
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