Luminescence and ODMR studies of X-traps for triplet excitons in organic crystals

Luminescence and ODMR studies of X-traps for triplet excitons in organic crystals

The excited triplet states of shallow X-traps in neat single crystals of 4,4-dichlorobenzophenone were studied at liquid helium temperature by luminescence spectroscopy and magnetic resonance with optical detection. The vibrational phosphorescence bands, the polarization of phosphorescence spectra,...

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Бібліографічні деталі
Опубліковано в: :Физика низких температур
Дата:1997
Автори: Avdeenko, A.A., Buravtseva, L.M., Gorobchenko, V.S., Eremenko, V.V., Izvekov, S.V., Kravchenko, A.E., Pyshkin, O.S., Sugakov, V.I.
Формат: Стаття
Мова:English
Опубліковано: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 1997
Онлайн доступ:https://nasplib.isofts.kiev.ua/handle/123456789/175038
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Цитувати:Luminescence and ODMR studies of X-traps for triplet excitons in organic crystals / A.А. Avdeenko, L.М. Buravtseva, V.S. Gorobchenko, V.V. Eremenko, S.V. lzvekov, А.Е. Кravchenko, О.S. Pyshkin, and V.І. Sugakov // Физика низких температур. — 1997. — Т. 23, № 3. — С. 334-337. — Бібліогр.: 20 назв. — англ.

Репозитарії

Digital Library of Periodicals of National Academy of Sciences of Ukraine
id nasplib_isofts_kiev_ua-123456789-175038
record_format dspace
spelling Avdeenko, A.A.
Buravtseva, L.M.
Gorobchenko, V.S.
Eremenko, V.V.
Izvekov, S.V.
Kravchenko, A.E.
Pyshkin, O.S.
Sugakov, V.I.
2021-01-30T08:52:13Z
2021-01-30T08:52:13Z
1997
Luminescence and ODMR studies of X-traps for triplet excitons in organic crystals / A.А. Avdeenko, L.М. Buravtseva, V.S. Gorobchenko, V.V. Eremenko, S.V. lzvekov, А.Е. Кravchenko, О.S. Pyshkin, and V.І. Sugakov // Физика низких температур. — 1997. — Т. 23, № 3. — С. 334-337. — Бібліогр.: 20 назв. — англ.
0132-6414
PACS: 71.55.Ht, 76.70.Hb, 78.55.Kz
https://nasplib.isofts.kiev.ua/handle/123456789/175038
The excited triplet states of shallow X-traps in neat single crystals of 4,4-dichlorobenzophenone were studied at liquid helium temperature by luminescence spectroscopy and magnetic resonance with optical detection. The vibrational phosphorescence bands, the polarization of phosphorescence spectra, and the triplet zero-field splitting parameters of these traps have been analyzed. A specific model of the structure defect (a molecule is turned by 180° on its long axis) has been considered in organic crystals of benzophenone type which consist of molecules whose dipole moments compensate each other in a unit cell. The calculated depth of such a dipole X-trap for triplet excitons in 4,4-dichlorobenzophenone crystals at the account of a defect molecule relaxation upon its slewing was found to be comparable with the experimental one.
The research described in this publication was made possible, in part, bу Grants U9JOOO and U9J200 from the International Science Foundation and Grant ISSEP SPU 04265 from the Soros Science Education Program of the International Renaissance Foundation.
en
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
Физика низких температур
Luminescence and ODMR studies of X-traps for triplet excitons in organic crystals
Article
published earlier
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
title Luminescence and ODMR studies of X-traps for triplet excitons in organic crystals
spellingShingle Luminescence and ODMR studies of X-traps for triplet excitons in organic crystals
Avdeenko, A.A.
Buravtseva, L.M.
Gorobchenko, V.S.
Eremenko, V.V.
Izvekov, S.V.
Kravchenko, A.E.
Pyshkin, O.S.
Sugakov, V.I.
title_short Luminescence and ODMR studies of X-traps for triplet excitons in organic crystals
title_full Luminescence and ODMR studies of X-traps for triplet excitons in organic crystals
title_fullStr Luminescence and ODMR studies of X-traps for triplet excitons in organic crystals
title_full_unstemmed Luminescence and ODMR studies of X-traps for triplet excitons in organic crystals
title_sort luminescence and odmr studies of x-traps for triplet excitons in organic crystals
author Avdeenko, A.A.
Buravtseva, L.M.
Gorobchenko, V.S.
Eremenko, V.V.
Izvekov, S.V.
Kravchenko, A.E.
Pyshkin, O.S.
Sugakov, V.I.
author_facet Avdeenko, A.A.
Buravtseva, L.M.
Gorobchenko, V.S.
Eremenko, V.V.
Izvekov, S.V.
Kravchenko, A.E.
Pyshkin, O.S.
Sugakov, V.I.
publishDate 1997
language English
container_title Физика низких температур
publisher Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
format Article
description The excited triplet states of shallow X-traps in neat single crystals of 4,4-dichlorobenzophenone were studied at liquid helium temperature by luminescence spectroscopy and magnetic resonance with optical detection. The vibrational phosphorescence bands, the polarization of phosphorescence spectra, and the triplet zero-field splitting parameters of these traps have been analyzed. A specific model of the structure defect (a molecule is turned by 180° on its long axis) has been considered in organic crystals of benzophenone type which consist of molecules whose dipole moments compensate each other in a unit cell. The calculated depth of such a dipole X-trap for triplet excitons in 4,4-dichlorobenzophenone crystals at the account of a defect molecule relaxation upon its slewing was found to be comparable with the experimental one.
issn 0132-6414
url https://nasplib.isofts.kiev.ua/handle/123456789/175038
citation_txt Luminescence and ODMR studies of X-traps for triplet excitons in organic crystals / A.А. Avdeenko, L.М. Buravtseva, V.S. Gorobchenko, V.V. Eremenko, S.V. lzvekov, А.Е. Кravchenko, О.S. Pyshkin, and V.І. Sugakov // Физика низких температур. — 1997. — Т. 23, № 3. — С. 334-337. — Бібліогр.: 20 назв. — англ.
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first_indexed 2025-12-07T20:07:46Z
last_indexed 2025-12-07T20:07:46Z
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