采用高温固相法合成了红色长余辉材料BaMg_2Si_2O_7:Pr,Mn,利用X晶体衍射仪、扫描电镜、荧光光谱、热释光测量仪等对材料的性能进行了表征,结果分析证明BaMg_2Si_2O_7:Pr,Mn以Mn~(2+)为发光中心,Pr~(3+)为共激活离子,在紫外光的照射下能够得到由Mn~(2+)的~4T_1(~4G)→~6A_1(~6S)跃迁产生的峰值在666nm发射峰,产生红光发射,撤离激发光源后,能够产生余辉,且余辉时间可以持续达40分钟以上,基质中存在着Pr~(3+)→Mn~(2+)的能量传递,能够增强其荧光发射峰强度并对余辉性能有一定促进作用.
The paper prepares and investigates a red afterglow phosphor BaMg_2Si_2O7:Pr,Mn. It was characterized by X-ray diffractmeter (XRD),scanning electron microscopy (SEM),fluorescence spectrophotometer and thermo luminescence (TL) meter. On the basis of the results,the red-emitting phosphor BaMg_2Si_2O_7∶Pr,Mn was synthesized through a solid-state reaction,and Mn~(2+) ions were the luminescence centre,while Pr~(3+) ions were the co-activator.Its red-emitting originates from the transition of ~4T1 (~4G)→~6A_1(~6S) peaking at 606nm. After UV irradiated for several minutes,the afterglow can last more than 50 minutes in darkness. On base of the characterization results,the fluorescence intensity and afterglow performance were improved for Pr~(3+)→Mn~(2+) energy transition in the BaMg_2Si_2O_7: Pr,Mn.
参考文献
| [1] | Lei BF;Liu YL;Liu H;Ye ZR;Shi CS .Pink light emitting long-lasting phosphorescence in Sm3+-doped CdSiO3[J].International Journal of Quantum Chemistry,2004(4/5):1333-1337. |
| [2] | Lei BF;Liu YL;Ye Z;Shi CS .Luminescence properties of CdSiO3 : Mn2+ phosphor[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2004(3/4):215-219. |
| [3] | Wang XJ.;Jia DD.;Yen WM. .Mn2+ activated green, yellow, and red long persistent phosphors[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2003(0):34-37. |
| [4] | Lin Lin;Min Yin;Chaoshu Shi .Luminescence properties of a new red long-lasting phosphor: Mg_2SiO_4:Dy~(3+), Mn~(2+)[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2008(1/2):327-330. |
| [5] | Song Ye;Jiahua Zhang;Xia Zhang;Xiaojun Wang .Mn~(2+) activated red long persistent phosphors in BaMg_2Si_2O_7[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2007(0):914-916. |
| [6] | Yonghu Chen;Wuzhao Yan;Chaoshu Shi .Energy transfer in Pr~(3+) and Mn~(2+) co-doped SrB_6O_(10) and SrB_4O_7[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2007(0):21-24. |
| [7] | Fu YB;Zhang GB;Wu WQ;Qi ZM;Chen YH;Wang DW;Shi CS .The energy transfer processes in LaMgB5O10 : Pr3+, Mn2+[J].The journal of physics and chemistry of solids,2007(9):1779-1784. |
| [8] | Zhiyi He;Xiao-jun Wang;W.M. Yen .Behavior of Mn~(2+) ions in the trapping process of SrMg(SiO_3)_2:Mn,Dy[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2007(0):381-384. |
| [9] | 周新木,李炳伟,曾慧慧,李会鑫.表面处理对（Ca,Zn）TiO3：Pr性能的改进[J].稀土,2008(01):28-31. |
| [10] | Zhengwei Liu;Yingliang Liu;Jingxian Zhang;Jianhua Rong;Langhuan Huang;Dingsheng Yuan .Long afterglow in Pr~(3+) and Li~(+) co-doped CaZrO_(3)[J].Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter,2005(4/6):388-392. |
| [11] | Dorenbos P. .The 4f(n)<-> 4f(n-1)5d transitions of the trivalent lanthanides in halogenides and chalcogenides [Review][J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2000(1/2):91-106. |
| [12] | 林林,尹民,施朝淑,张慰萍,徐美.红色长余辉材料Mg2SiO4：Dy3+,Mn2+的制备及发光特性[J].发光学报,2006(03):331-336. |
| [13] | Mckeever S W S.Solid Thermo luminescence[M].北京:原子能出版社,1993:96. |
| [14] | 刘春波,车广波.自激活白光发射Ba2TiP2O9发光材料的发光特性[J].无机化学学报,2006(03):503-506. |
| [15] | 廖亮,张玉奇,李治霞,李兴旺.新型红色长余辉发光材料Y2O3∶Eu3+,Ca2+,Ti4+的燃烧合成和性能表征[J].稀土,2006(02):26-29. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%