利用提拉法多次生长了KMgF3∶Sm2+和KMgF3∶Sm2∶Li+晶体;在KMgF3∶Sm2晶体结构分析的基础上,通过测试和分析KMgF3∶Sm2+和KMgF3∶Sm2+∶Li+晶体的激发光谱、发射光谱以及衰减曲线,揭示了晶体的7 F0→5D0激发光谱中,680 ～ 682 nm范围内未被揭示的一个激发峰的产生机理.最后得出结论该激发峰是由Li+引起的HA色心,此结论通过355 nm紫外光照射对光谱的影响进一步得到了确认.
参考文献
| [1] | Wells JPR.;Han TPJ.;Gallagher HG.;Sugiyama A. .A spectroscopic comparison of samarium-doped LiYF4 and KY3F10[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2000(0):1029-1031. |
| [2] | J.-P.R. Wells;A. Sugiyama;T.P.J. Han;H.G. Gallagher .Laser site selective excitation of KY_3F_(10)-doped with samarium[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,1999(1/3):91-102. |
| [3] | 黄桂芹,刘楣,陈凌孚.KMgF3晶体的色心和自陷态激子研究[J].物理学报,2005(04):1702-1706. |
| [4] | 魏乐,杨定明,胡文远,胡亚敏,廖其龙.SrCeO3∶Sm3+红色发光粉的制备及发光性能[J].人工晶体学报,2012(01):64-68,84. |
| [5] | 滕飞,马伟民,马雷,朱红艳,吴南.共沉淀法制备SrZrO_3：Ce纳米粒子[J].硅酸盐学报,2012(01):101-107. |
| [6] | 刘红日,余画,孙玉霞,熊襄玉,赵清峰,黄玲玲.Pr掺杂BiFeO3粉体的水热制备方法研究[J].人工晶体学报,2011(02):492-495,499. |
| [7] | Tsuboi T.;Scacco A. .Observation of absorption bands due to the 4f(7) -> 4f(7) parity-forbidden transitions of Eu2+ ions in KMgF3 crystals[J].Journal of Physics. Condensed Matter,1998(32):7259-7266. |
| [8] | Seo HJ.;Tsuboi T.;Moon BK. .Two-photon excitation spectroscopy of 4f(7)-> 4f(7) transitions of Eu2+ ions doped in a KMgF3 crystal[J].Physical Review.B.Condensed Matter,2000(19):12688-12695. |
| [9] | Wansong Zhang;Hyo Jin Seo;Byung Kee Moon .Site-selective fluorescence excitation spectroscopy of a KMgF_3:Sm~(2+) crystal[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2004(1/2):32-35. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%