Transient optical absorption by self-trapped holes in berillium oxide crystals

S. V. Gorbunov, S. V. Kudyakov, V. Yu Yakovlev, A. V. Kruzhalov

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Transient optical absorption in berillium oxide crystals induced by an electron beam pulse has been studied by time-resolved absorption spectroscopy. The decay kinetics of this absorption reveals a component with a 6.5-ms time constant associated with the formation and decay of self-trapped holes. The absorption band of the self-trapped holes peaking at 3.6 eV and the UV absorption region of self-trapped excitons in BeO have been found to have similar properties. A model discussed is presenting the self-trapped hole as a small-radius polaron (of the O- ion-type) whose motion cannot be completely frozen out because of tunneling migration is discussed. At T> 100 K, thermally activated motion of self-trapped holes to electronic traps involving formation of self-trapped excitons is observed to occur.

Original languageEnglish
Pages (from-to)119-121
Number of pages3
JournalPhysics of the Solid State
Volume38
Issue number1
Publication statusPublished - Jan 1996

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Excitons
Oxides
Light absorption
optical absorption
Gene Conversion
Crystals
oxides
Absorption spectroscopy
crystals
Absorption spectra
Electron beams
excitons
Ions
Kinetics
decay
time constant
absorption spectroscopy
traps
electron beams
absorption spectra

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Gorbunov, S. V., Kudyakov, S. V., Yakovlev, V. Y., & Kruzhalov, A. V. (1996). Transient optical absorption by self-trapped holes in berillium oxide crystals. Physics of the Solid State, 38(1), 119-121.

Transient optical absorption by self-trapped holes in berillium oxide crystals. / Gorbunov, S. V.; Kudyakov, S. V.; Yakovlev, V. Yu; Kruzhalov, A. V.

In: Physics of the Solid State, Vol. 38, No. 1, 01.1996, p. 119-121.

Research output: Contribution to journalArticle

Gorbunov, SV, Kudyakov, SV, Yakovlev, VY & Kruzhalov, AV 1996, 'Transient optical absorption by self-trapped holes in berillium oxide crystals', Physics of the Solid State, vol. 38, no. 1, pp. 119-121.
Gorbunov, S. V. ; Kudyakov, S. V. ; Yakovlev, V. Yu ; Kruzhalov, A. V. / Transient optical absorption by self-trapped holes in berillium oxide crystals. In: Physics of the Solid State. 1996 ; Vol. 38, No. 1. pp. 119-121.
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