Luminescence and decay kinetics of Pb2+ center in LiCaAlF6 single crystal host

Jan Pejchal, Eva Mihokova, Martin Nikl, Andrey Novoselov, Akira Yoshikawa

研究成果: Article

17 被引用数 (Scopus)

抄録

The Pb-doped LiCaAlF6 single crystals were grown using the micro-pulling-down method. The temperature dependences of photoluminescence characteristics were studied to reveal the kinetic processes in the excited state of Pb2+ luminescence center. A simple three-level phenomenological model applied to the decay time temperature dependences shows that energy separation between the metastable 3P0 and the radiative 3P1 states of Pb2+ center is relatively high, about 180 meV (∼1470 cm-1). Induced absorption spectrum after UV illumination at 500 K points to slight ionization of the Pb2+ excited state and creation of the color F-center with an absorption peak located around 260 nm.

本文言語English
ページ(範囲)1673-1677
ページ数5
ジャーナルOptical Materials
31
11
DOI
出版ステータスPublished - 2009 9

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Computer Science(all)
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Electrical and Electronic Engineering

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