Metastable optical absorption of relaxed electronic excitations in BeO-Zn crystals

S. V. Gorbunov, K. V. Bautin, A. V. Kruzhalov, V. Yu Yakovlev

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Spectra of metastable optical absorption and its relaxation kinetics have been studied in zinc-doped BeO crystals by time-resolved pulsed absorption spectroscopy. A comparison of the observed induced optical absorption of self-trapped excitons and small-radius excitons bound to the zinc impurity suggests that their hole components have similar structures and reveals distinctive features of "forbidden" optical transitions in the electronic components. Metastable optical absorption in Zn+ centers has been discovered. It is shown that the small-radius excitons bound to the zinc impurity form in the hole stages of thermally stimulated tunneling recombination processes involving Zn+ electronic centers. It has been found that the high recombination probability of the electronic and hole centers created in BeO-Zn crystals by an electron beam may be due to the high degree of their spatial correlation.

Original languageEnglish
Pages (from-to)539-543
Number of pages5
JournalPhysics of the Solid State
Volume41
Issue number4
Publication statusPublished - Apr 1999

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Excitons
Light absorption
Zinc
optical absorption
zinc
excitons
Crystals
electronics
Impurities
excitation
crystals
impurities
Optical transitions
radii
Absorption spectroscopy
optical transition
doped crystals
Electron beams
absorption spectroscopy
electron beams

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Metastable optical absorption of relaxed electronic excitations in BeO-Zn crystals. / Gorbunov, S. V.; Bautin, K. V.; Kruzhalov, A. V.; Yakovlev, V. Yu.

In: Physics of the Solid State, Vol. 41, No. 4, 04.1999, p. 539-543.

Research output: Contribution to journalArticle

Gorbunov, S. V. ; Bautin, K. V. ; Kruzhalov, A. V. ; Yakovlev, V. Yu. / Metastable optical absorption of relaxed electronic excitations in BeO-Zn crystals. In: Physics of the Solid State. 1999 ; Vol. 41, No. 4. pp. 539-543.
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