| Ce~(3+):LiYF_4和Ce~(3+):LiLuF_4晶体生长与其紫外光谱特征 |
| |
| 引用本文： | 那木吉拉图,苏小平,杨海,阮永丰,杨鹏,李楠.Ce~(3+):LiYF_4和Ce~(3+):LiLuF_4晶体生长与其紫外光谱特征[J].硅酸盐学报,2009,37(5). |
| |
| 作者姓名： | 那木吉拉图 苏小平 杨海 阮永丰 杨鹏 李楠 |
| |
| 作者单位： | 1. 北京有色金属研究总院,北京国晶辉红外光学科技有限公司,北京,100088
2. 天津大学理学院,天津,300072 |
| |
| 摘 要： | 采用提拉法在CF4气氛中生长高质量掺Ce3+的LiYF4和LiLuF4晶体.测试了晶体的紫外光谱,并从配位场理论角度解释了Ce3+在2种氟化物晶体中紫外光谱特性的差异.结果表明:Ce3+在LiYF4晶体的吸收谱宽度比在LiLuF4晶体中更宽.Ce3+:LiYF4晶体的吸收峰和荧光峰的位置相对Ce3+:LiLuF4晶体的出现紫移.认为其主要原因是由于在LiYF4晶体中,Ce3+和相邻的F的距离更近,Ce3+的d电子与F之间的相互排斥作用更大.
|
| 关 键 词： | 氟化钇锂晶体 氟化镥锂晶体 晶体生长 紫外光谱 |
CRYSTAL GROWTH AND ULTRAVIOLET SPECTRA CHARACTERISTICS OF Ce~(3+):LiYF_4 AND Ce~(3+):LiLuF_4 CRYSTALS |
| |
| NA Mufilatu,SU Xiaoping,YANG Hai,RUAN Yongfeng,YANG Peng,LI Nan.CRYSTAL GROWTH AND ULTRAVIOLET SPECTRA CHARACTERISTICS OF Ce~(3+):LiYF_4 AND Ce~(3+):LiLuF_4 CRYSTALS[J].Journal of The Chinese Ceramic Society,2009,37(5). |
| |
| Authors: | NA Mufilatu SU Xiaoping YANG Hai RUAN Yongfeng YANG Peng LI Nan |
| |
| Affiliation: | 1.Beijing General Research Institute for Nonferrous Metals;Beijing Guojing Infrared Optical Technology Co.;Ltd;Beijing 100088;2.School of Science;Tianjin University;Tianjin 300072;China |
| |
| Abstract: | Ce3+:LiYF4 and Ce3+:LiLuF4 crystals were grown by the Czochralski method in CF4 atmosphere.The ultraviolet(UV) spectra of the crystals were measured.The difference in the UV spectra was discussed from the viewpoint of lattice deformations and the ligand field theory.The results show that the absorption band of Ce3+ ions in LiYF4 crystal is wider than that in LiLuF4 crystal,and the absorbance and fluorescence peaks of the Ce3+:LiYF4 crystal exhibit a blue shift compared with the Ce3+:LiLuF4 crystal.Be-cause ... |
| |
| Keywords: | lithium yttrium fluoride crystal lithium lutetium fluoride crystal crystal growth ultraviolet spectra |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
