Size Effects in Photoexcitation of Triplet States of Ammonium Tetraphenylborate Научная публикация
| Журнал |
Physics of the Solid State
ISSN: 1063-7834 , E-ISSN: 1090-6460 |
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| Вых. Данные | Год: 2011, Том: 53, Номер: 2, Страницы: 284-291 Страниц : 8 DOI: 10.1134/S106378341102020X | ||||||
| Ключевые слова | DPPH; Triplet State; Hole Pair; Mesoporous Structure; Paramagnetic Center | ||||||
| Авторы |
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Информация о финансировании (1)
| 1 | Президиум РАН | 5 |
Реферат:
This paper reports on the results of complex investigations of photoexcited states of ammonium
tetraphenylborate, which are characterized by selfsensitized luminescence. It has been established that the
excitation by UV light at 77 K leads to the formation of stable triplet states due to the capture of electrons on
electron traps. The EPR and luminescence excitation spectra exhibit the formation of a set of triplet states
with different distances between electrons and holes. The performed investigations give grounds to affirm
that, in bulk samples, cations in the structure of ammonium tetraphenylborate are electron traps. When the
size of the ammonium tetraphenylborate sample is changed to 6 and 3 nm, the capture of excited electrons
on sorbed oxygen molecules becomes dominant. In this case, the appearance of the spectrum of anion
radicals has been detected by the EPR method. The proposed interpretation of the observed effects has been
confirmed by the thermoluminescence data on the recombination of electron–hole pairs, which correlate
with a change in the intensity of the EPR spectra during annealing.
Библиографическая ссылка:
Nadolinny V.A.
, Antonova O.V.
, Ilʹinchik E.A.
, Kovalev M.K.
, Melʹgunov M.S.
, Yelisseev A.P.
, Ryadun A.A.
Size Effects in Photoexcitation of Triplet States of Ammonium Tetraphenylborate
Physics of the Solid State. 2011. V.53. N2. P.284-291. DOI: 10.1134/S106378341102020X WOS Scopus РИНЦ OpenAlex CAPlusCA
Size Effects in Photoexcitation of Triplet States of Ammonium Tetraphenylborate
Physics of the Solid State. 2011. V.53. N2. P.284-291. DOI: 10.1134/S106378341102020X WOS Scopus РИНЦ OpenAlex CAPlusCA
Оригинальная:
Надолинный В.А.
, Антонова О.В.
, Ильинчик Е.А.
, Ковалев М.К.
, Мельгунов М.С.
, Елисеев А.П.
, Рядун А.А.
Размерные эффекты при фотовозбуждении триплетных состояний тетрафенилбората аммония
Физика твердого тела. 2011. Т.53. №2. С.266-273. РИНЦ
Размерные эффекты при фотовозбуждении триплетных состояний тетрафенилбората аммония
Физика твердого тела. 2011. Т.53. №2. С.266-273. РИНЦ
Даты:
| Поступила в редакцию: | 12 мая 2010 г. |
| Опубликована в печати: | 1 февр. 2011 г. |
| Опубликована online: | 22 февр. 2011 г. |
Идентификаторы БД:
| ≡ Web of science: | WOS:000287597800010 |
| ≡ Scopus: | 2-s2.0-79951890305 |
| ≡ РИНЦ: | 16872428 |
| ≡ OpenAlex: | W1986664547 |
| ≡ Chemical Abstracts: | 2011:222112 |
| ≡ Chemical Abstracts (print): | 154:321603 |