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Fluorescence characterization of heavily Eu3+-doped lanthanum gallate glass spheres with high quenching concentration
Optics Letters ( IF 3.1 ) Pub Date : 2019-02-07 , DOI: 10.1364/ol.44.000875 Kohei Yoshimoto , Yoshinobu Ezura , Motoi Ueda , Atsunobu Masuno , Hiroyuki Inoue , Masafumi Mizuguchi
Optics Letters ( IF 3.1 ) Pub Date : 2019-02-07 , DOI: 10.1364/ol.44.000875 Kohei Yoshimoto , Yoshinobu Ezura , Motoi Ueda , Atsunobu Masuno , Hiroyuki Inoue , Masafumi Mizuguchi
Highly -doped (up to 30 mol%) La2O3–Ga2O3 glasses were synthesized by an aerodynamic levitation technique. The red emission associated with level of was most intense at 20 mol% , indicating a small effect of concentration quenching even at high Eu concentration. The fluorescence decay curves indicated that the dominant transition mechanism at high Eu concentration was fast energy migration among the ions, which averaged the environment of the Eu, yielding a nearly single-exponential decay of emission. Lifetime of the level gradually decreased with over the 5–25 mol% and rapidly decreased at 30 mol%, very consistent with the observed emission spectra.
中文翻译:
高猝灭浓度重掺杂Eu 3+的没食子酸镧镧玻璃球的荧光表征
高度 通过空气悬浮技术合成了掺杂(最多30 mol%)的La 2 O 3 -Ga 2 O 3玻璃。与之相关的红色发射 水平 在20摩尔%时最强烈 ,表明即使在高Eu浓度下,浓度淬灭的影响也很小。荧光衰减曲线表明,高Eu浓度下的显着跃迁机理是能量的快速迁移。 离子,平均Eu的环境,产生几乎单指数的Eu衰变。 排放。的生命周期 逐渐降低 在5–25 mol%范围内,并且在30 mol%时迅速降低,这与观察到的发射光谱非常一致。
更新日期:2019-02-15
中文翻译:
高猝灭浓度重掺杂Eu 3+的没食子酸镧镧玻璃球的荧光表征
高度 通过空气悬浮技术合成了掺杂(最多30 mol%)的La 2 O 3 -Ga 2 O 3玻璃。与之相关的红色发射 水平 在20摩尔%时最强烈 ,表明即使在高Eu浓度下,浓度淬灭的影响也很小。荧光衰减曲线表明,高Eu浓度下的显着跃迁机理是能量的快速迁移。 离子,平均Eu的环境,产生几乎单指数的Eu衰变。 排放。的生命周期 逐渐降低 在5–25 mol%范围内,并且在30 mol%时迅速降低,这与观察到的发射光谱非常一致。