Тип публикации: статья из журнала
Год издания: 2010
Идентификатор DOI: 10.1016/j.chemphys.2010.10.001
Ключевые слова: Fluorescein, Dibromofluorescein, Eosin Y, Erythrosine B, Rose bengal, Bio-films, Phosphorescence, Delayed fluorescence
Аннотация: The phosphorescence and delayed fluorescence behaviour of the fluorone dyes disodium fluorescein (FL, uranine), 4,5-dibromofluorescein (DBF), eosin Y (EO), erythrosine B (ER), and rose bengal (RB) in bio-films of gelatine, starch, and chitosan at room temperature is studied. Phosphorescence and delayed fluorescence quantum yields aПоказать полностьюnd lifetimes were measured. The singlet-triplet dynamics is described and applied to the fluorone dyes for parameter extraction. For uranine films at room temperature no phosphorescence could be resolved. The efficiency of singlet-triplet intersystem crossing increased in the order phi(ISC)(DBF) tau(P)(EO) > tau(P)(ER) > tau(P)(RB). (C) 2010 Elsevier B.V. All rights reserved.
Журнал: CHEMICAL PHYSICS
Выпуск журнала: Vol. 378, Is. 1-3
Номера страниц: 58-65
ISSN журнала: 03010104
Место издания: AMSTERDAM
Издатель: ELSEVIER SCIENCE BV