Behavior of trapped electronic excitations in oxide crystals

Abstract

The transient optical absorption spectra and their decay kinetics have been investigated by time-resolved absorption spectroscopy technique in Zn-doped BeO crystals. Comparing transient optical absorption properties of self-trapped excitons (STEs) and Zn-impurity-trapped excitons we have made conclusions about the similarity of their hole components and distinctive peculiarities of forbidden optical transitions in their electron components. The metastable optical absorption of Zn⁺-centers has been first found. It is shown that the Zn-impurity-trapped exciton formation occurs at the hole stages of recombination thermotunnel processes with the participation of electron Zn⁺-centers. It is found that high probability of electron and hole center recombination formed in BeO-Zn crystals by electron pulses may be related to a high degree of their space correlation.

Original language	English
Pages (from-to)	95-101
Number of pages	7
Journal	Radiation Effects and Defects in Solids
Volume	150
Issue number	1-4
DOIs	https://doi.org/10.1080/10420159908226214
Publication status	Published - 1 Jan 1999
Event	Proceedings of the 1998 8th Europhysical Conference on Defects in Insulating Materials, EURODIM 98 - Keele, United Kingdom Duration: 6 Jun 1998 → 11 Jun 1998

ASJC Scopus subject areas

Radiation
Nuclear and High Energy Physics
Materials Science(all)
Condensed Matter Physics

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Gorbunov, S. V., Bautin, K. V., Kudyakov, S. V., Kruzhalov, A. V., Ivanov, V. Y., & Yakovlev, V. Y. (1999). Behavior of trapped electronic excitations in oxide crystals. Radiation Effects and Defects in Solids, 150(1-4), 95-101. https://doi.org/10.1080/10420159908226214

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title = "Behavior of trapped electronic excitations in oxide crystals",

abstract = "The transient optical absorption spectra and their decay kinetics have been investigated by time-resolved absorption spectroscopy technique in Zn-doped BeO crystals. Comparing transient optical absorption properties of self-trapped excitons (STEs) and Zn-impurity-trapped excitons we have made conclusions about the similarity of their hole components and distinctive peculiarities of forbidden optical transitions in their electron components. The metastable optical absorption of Zn+-centers has been first found. It is shown that the Zn-impurity-trapped exciton formation occurs at the hole stages of recombination thermotunnel processes with the participation of electron Zn+-centers. It is found that high probability of electron and hole center recombination formed in BeO-Zn crystals by electron pulses may be related to a high degree of their space correlation.",

author = "Gorbunov, {S. V.} and Bautin, {K. V.} and Kudyakov, {S. V.} and Kruzhalov, {A. V.} and Ivanov, {V. Yu} and Yakovlev, {V. Yu}",

year = "1999",

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language = "English",

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journal = "Radiation Effects and Defects in Solids",

issn = "1042-0150",

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note = "Proceedings of the 1998 8th Europhysical Conference on Defects in Insulating Materials, EURODIM 98 ; Conference date: 06-06-1998 Through 11-06-1998",

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TY - JOUR

T1 - Behavior of trapped electronic excitations in oxide crystals

AU - Gorbunov, S. V.

AU - Bautin, K. V.

AU - Kudyakov, S. V.

AU - Kruzhalov, A. V.

AU - Ivanov, V. Yu

AU - Yakovlev, V. Yu

PY - 1999/1/1

Y1 - 1999/1/1

N2 - The transient optical absorption spectra and their decay kinetics have been investigated by time-resolved absorption spectroscopy technique in Zn-doped BeO crystals. Comparing transient optical absorption properties of self-trapped excitons (STEs) and Zn-impurity-trapped excitons we have made conclusions about the similarity of their hole components and distinctive peculiarities of forbidden optical transitions in their electron components. The metastable optical absorption of Zn+-centers has been first found. It is shown that the Zn-impurity-trapped exciton formation occurs at the hole stages of recombination thermotunnel processes with the participation of electron Zn+-centers. It is found that high probability of electron and hole center recombination formed in BeO-Zn crystals by electron pulses may be related to a high degree of their space correlation.

AB - The transient optical absorption spectra and their decay kinetics have been investigated by time-resolved absorption spectroscopy technique in Zn-doped BeO crystals. Comparing transient optical absorption properties of self-trapped excitons (STEs) and Zn-impurity-trapped excitons we have made conclusions about the similarity of their hole components and distinctive peculiarities of forbidden optical transitions in their electron components. The metastable optical absorption of Zn+-centers has been first found. It is shown that the Zn-impurity-trapped exciton formation occurs at the hole stages of recombination thermotunnel processes with the participation of electron Zn+-centers. It is found that high probability of electron and hole center recombination formed in BeO-Zn crystals by electron pulses may be related to a high degree of their space correlation.

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