[CaSiO₃ 中 Pr(3+) 的发光特性及 Pr(3+)→Gd(3+) 的能量转移特性]

[Luminescence properties of Pr(3+) and energy transfer characteristics of Pr(3+)-->Gd(3+) in CaSiO3].

作者信息

Chu Ben-li, Liu Xing-ren, Wang Xiao-jun, Zhang Jia-hua, Jiang Xue-yin

机构信息

Laboratory of Excited State Processes, Chinese Academy of Sciences, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130021, China.

出版信息

Guang Pu Xue Yu Guang Pu Fen Xi. 2002 Aug;22(4):542-4.

PMID:12938358

Abstract

The excitation spectrum and the emission spectrum of Pr3+ in CaSiO3 under the room temperature were studied. The emission spectrum was constituted of three emission bands, corresponding to the emissions of the lowest 4f5d states to the 3H4, 3H6, 1G4 of the 4f2 states. The emission of the 3P0 and 1D2 were not observed. The concentration quenching of Pr3+ was due to the radiative and nonradiative energy transfer. There was energy transfer from Pr3+ to Gd3+, with the transfer rate of 10% of the Pr3+ emission rate.

摘要

研究了室温下CaSiO₃中Pr³⁺的激发光谱和发射光谱。发射光谱由三个发射带组成，对应于最低4f5d态到4f²态的³H₄、³H₆、¹G₄的发射。未观察到³P₀和¹D₂的发射。Pr³⁺的浓度猝灭是由于辐射和非辐射能量转移。存在从Pr³⁺到Gd³⁺的能量转移，转移速率为Pr³⁺发射速率的10%。