2012/11/02 by E. A. Radzhabov, Е. А. Раджабов, V. Nagirnyi +4
Materials Science · Physics and Astronomy · #Atomic and Molecular Physics #Atomic and Subatomic Physics Research #FOS: Physical sciences #Luminescence Properties of Advanced Materials #Materials Science (cond-mat.mtrl-sci) #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.1211.0376
4 pages, 7 figures
arxiv created 2012/11/02 · openalex publication_date 2012/11/02 · arxiv updated 2012/11/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Time-resolved emission, excitation as well as emission decay curves of CaF2, SrF2, BaF2 doped with HoF3 were investigated. Most intensive emission bands near 168 nm, having long decay time, belong to spin-forbidden transitions from 5d14f9 high spin (HS) states to ground 5I8 states of Ho3+ ions. Weak spin allowed 5d14f9(LS)-4f10 emission band at 158 nm was observed only in CaF2-Ho crystals. Spin allowed and spin-forbidden excitation bands were observed in all crystals near 166 and 155 nm respectively. Fast component of spin-forbidden emissions due to multiphonon relaxation to low-lying 4f10 Ho3+ level was observed for all crystals.