当前位置: X-MOL 学术J. Lumin. › 论文详情
Spectroscopic properties of Dy3+ ions in La3Ga5.5Ta0.5O14 single crystal
Journal of Luminescence ( IF 3.280 ) Pub Date : 2019-12-23 , DOI: 10.1016/j.jlumin.2019.116989
Jarosław Komar, Radosław Lisiecki, Michał Głowacki, Marek Berkowski, Maria Suszyńska, Witold Ryba-Romanowski

Single crystal of La3Ga5.5Ta0.5O14 (LGT) doped with Dy3+ was fabricated by the Czochralski technique and investigated employing methods of optical spectroscopy. Polarized optical absorption spectra and luminescence spectra were recorded at room temperature. Unpolarized absorption and luminescence spectra were recorded at 10 K. Spectra of blue luminescence related to transitions 4I15/2, 4F9/2 → 6H15/2 were recorded at several temperatures in the 300–773 K region. Dy3+ ions have the same symmetry sites in LGT but their spectra show inhomogeneous broadening due to structural disorder of the host and are markedly anisotropic. Results of the Judd-Ofelt treatment made it possible to assess emission cross sections for the 4F9/2 → 6H15/2 blue luminescence and for the 4F9/2 → 6H13/2 yellow luminescence employing Fuchtbauer-Ladenburg formula and reciprocity method. In particular, a spectral distribution of La3Ga5.5Ta0.5O14: Dy3+ σ-polarized luminescence band with an emission cross section σem = 0.51 × 10−20 cm2 at 573.5 nm is favorable for a laser operation in the visible. Interpretation of the effect of temperature on the blue emission spectra leads to the conclusion that La3Ga5.5Ta0.5O14: Dy3+ is promising for application as luminescent thermometer.

更新日期:2019-12-23

 

全部期刊列表>>
chemistry
物理学研究前沿热点精选期刊推荐
自然职位线上招聘会
欢迎报名注册2020量子在线大会
化学领域亟待解决的问题
材料学研究精选新
GIANT
ACS ES&T Engineering
ACS ES&T Water
ACS Publications填问卷
屿渡论文,编辑服务
阿拉丁试剂right
南昌大学
王辉
南方科技大学
彭小水
隐藏1h前已浏览文章
课题组网站
新版X-MOL期刊搜索和高级搜索功能介绍
ACS材料视界
天合科研
x-mol收录
赵延川
李霄羽
廖矿标
朱守非
试剂库存
down
wechat
bug