Аннотация
| Язык оригинала | Английский |
|---|---|
| Страницы (с-по) | 32-35 |
| Число страниц | 4 |
| Журнал | Известия высших учебных заведений. Физика |
| Том | 57 |
| Номер выпуска | 12-3 |
| Состояние | Опубликовано - 2014 |
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OPTICAL AND LUMINESCENCE PROPERTIES OF LITHIUM GADOLINIUM ORTHOBORATE CRYSTALS. / Kisileva, Maria Sergeevna; Ogorodnikov, Igor Nikolaevich; Sedunova, Irina Nikolaevna; Vostrov, Dmitriy Olegovich; Yakovlev, Viktor Yuryevich.
В: Известия высших учебных заведений. Физика, Том 57, № 12-3, 2014, стр. 32-35.Результат исследований: Вклад в журнал › Статья › Научно-исследовательская › рецензирование
TY - JOUR
T1 - OPTICAL AND LUMINESCENCE PROPERTIES OF LITHIUM GADOLINIUM ORTHOBORATE CRYSTALS
AU - Kisileva, Maria Sergeevna
AU - Ogorodnikov, Igor Nikolaevich
AU - Sedunova, Irina Nikolaevna
AU - Vostrov, Dmitriy Olegovich
AU - Yakovlev, Viktor Yuryevich
PY - 2014
Y1 - 2014
N2 - We present the research results on transient optical absorption (TOA) and luminescence for lithium-gadolinium orthoborate Li 6GdB 3O 9 (LGBO) in the visible and ultraviolet spectral regions. According to absorption optical spectroscopy with nanosecond time resolution studies the LGBO TOA is caused by optical transitions in hole centers. The optical density relaxation kinetics is governed by interdefect tunneling recombination between these centers and neutral lithium atoms acting as electronic Li 0 centers. At 290 K Li 0 centers are involved in thermally stimulated migration, which is not accompanied by carrier transfer to the conduction or valence band. We suppose that diffusion-limited annihilation of lithium interstitials with vacancies is responsible for the slow TOA decay kinetics component with characteristic times ranging from a few milliseconds to seconds. The mechanisms of defect creation and short-living Frenkel pairs relaxation in the LGBO cation sublattice were analyzed.
AB - We present the research results on transient optical absorption (TOA) and luminescence for lithium-gadolinium orthoborate Li 6GdB 3O 9 (LGBO) in the visible and ultraviolet spectral regions. According to absorption optical spectroscopy with nanosecond time resolution studies the LGBO TOA is caused by optical transitions in hole centers. The optical density relaxation kinetics is governed by interdefect tunneling recombination between these centers and neutral lithium atoms acting as electronic Li 0 centers. At 290 K Li 0 centers are involved in thermally stimulated migration, which is not accompanied by carrier transfer to the conduction or valence band. We suppose that diffusion-limited annihilation of lithium interstitials with vacancies is responsible for the slow TOA decay kinetics component with characteristic times ranging from a few milliseconds to seconds. The mechanisms of defect creation and short-living Frenkel pairs relaxation in the LGBO cation sublattice were analyzed.
UR - https://elibrary.ru/item.asp?id=23815745
M3 - Article
VL - 57
SP - 32
EP - 35
JO - Известия высших учебных заведений. Физика
JF - Известия высших учебных заведений. Физика
SN - 0021-3411
IS - 12-3
ER -