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
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
Назва видання:Физика низких температур
Онлайн доступ:http://dspace.nbuv.gov.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.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
id irk-123456789-175038
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spelling irk-123456789-1750382021-01-31T01:27:14Z 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. 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. 1997 Article 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 http://dspace.nbuv.gov.ua/handle/123456789/175038 en Физика низких температур Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
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.
format Article
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.
spellingShingle Avdeenko, A.A.
Buravtseva, L.M.
Gorobchenko, V.S.
Eremenko, V.V.
Izvekov, S.V.
Kravchenko, A.E.
Pyshkin, O.S.
Sugakov, V.I.
Luminescence and ODMR studies of X-traps for triplet excitons in organic crystals
Физика низких температур
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.
author_sort Avdeenko, A.A.
title Luminescence and ODMR studies of X-traps for triplet excitons in organic crystals
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
publisher Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
publishDate 1997
url http://dspace.nbuv.gov.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.
series Физика низких температур
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first_indexed 2023-10-18T22:37:52Z
last_indexed 2023-10-18T22:37:52Z
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