Article

Creation and optical properties of stable and metastable hole-trapped centres in beryllium oxide

S. V. Gorbunov Ural Politechnical Institute, Sverdlovsk, USSRV.Yu. Ivanov Ural Politechnical Institute, Sverdlovsk, USSRI. N. Antsigin Ural Politechnical Institute, Sverdlovsk, USSRА. В. Кружалов Ural Politechnical Institute, Sverdlovsk, USSRБ. В. Шульгин Ural Politechnical Institute, Sverdlovsk, USSR

Radiation effects and defects in solidsjournal1991en

ABI

Abstract

Abstract The paper is devoted to study of formation mechanisms and optical absorption of the hole-trapped centers in neutron, electron-impulse and X-irradiated BeO crystals. V0 and V− centers are found out to be formed as a result of neutron irradiation creating cation Frenkel pairs. Within the transient absorption decay kinetics, we registered a component whose thermal-time properties coincide with those of the luminescence of triplet self-trapped excitons. A number of absorption bands from the VB center and exciton hole nucleus are interpreted as transitions between the O− ion p-levels splitted by the crystal field, as well as polaron transitions and transitions into the valence band.

Topics

Photorefractive and Nonlinear Optics Radiation Detection and Scintillator Technologies Gyrotron and Vacuum Electronics Research

Identifiers

DOI: 10.1080/10420159108220839

Citations and references

Cited by 06 references

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