Behavior of trapped electronic excitations in oxide crystals

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

Результат исследований: Материалы для журналарецензирование


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.

Язык оригиналаАнглийский
Страницы (с-по)95-101
Число страниц7
ЖурналRadiation Effects and Defects in Solids
Номер выпуска1-4
СостояниеОпубликовано - 1 янв 1999
СобытиеProceedings of the 1998 8th Europhysical Conference on Defects in Insulating Materials, EURODIM 98 - Keele, Великобритания
Продолжительность: 6 июн 199811 июн 1998

ASJC Scopus subject areas

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

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