Luminescence of Tl+ ions in a KZnF3 crystal

被引：0
作者：
L. K. Aminov
S. I. Nikitin
N. I. Silkin
R. V. Yusupov
机构：
[1] Kazan State University,
来源：
Physics of the Solid State | 2002年 / 44卷
关键词：
Spectroscopy; State Physics; Absorption Spectrum; Absorption Band; Energy Range;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The luminescence spectra of a KZnF3: Tl+ crystal are investigated in the energy range from 4.75 to 5.9 eV at temperatures of 10–300 K upon excitation into the A absorption band (5.7–6.3 eV). At T=300 K, the luminescence spectra exhibit an intense band with a maximum at 5.45 eV, which is attributed to single Tl+ ions substituted for K+ ions. The 5.723-eV intense narrow band observed at T<20 K is assigned to the 3Γ1u-1Γ1g zero-phonon transition, which is weakly allowed by the hyperfine interaction. The luminescence decay is studied as a function of temperature. The main characteristics of the luminescence spectra are adequately described in terms of the semiclassical theory based on the Franck-Condon principle and the Jahn-Teller effect for an excited sp configuration of the Tl+ ion with the use of the parameters obtained earlier from analyzing the absorption spectra of the system under investigation.
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页码：1558 / 1563
页数：5
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共 40 条
  • [11] Furetta C.(1991)undefined J. Phys. Chem. Solids 52 35-undefined
  • [12] Bacci C.(2001)undefined J. Phys.: Condens. Matter 13 6247-undefined
  • [13] Rispoli B.(1979)undefined Phys. Rev. Lett. 43 1023-undefined
  • [14] Dubinskii M. A.(1981)undefined Pis’ma Zh. Éksp. Teor. Fiz. 33 24-undefined
  • [15] Semashko V. V.(1981)undefined Phys. Status Solidi B 105 613-undefined
  • [16] Naumov A. K.(undefined)undefined undefined undefined undefined-undefined
  • [17] Pazzi G. P.(undefined)undefined undefined undefined undefined-undefined
  • [18] Baldecchi M. G.(undefined)undefined undefined undefined undefined-undefined
  • [19] Fabeni P.(undefined)undefined undefined undefined undefined-undefined
  • [20] Scacco A.(undefined)undefined undefined undefined undefined-undefined
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