Title
Photostability of a series of two-photon absorbing fluorene derivatives
Abbreviated Journal Title
J. Photochem. Photobiol. A-Chem.
Keywords
fluorene derivatives; photochemical quantum yield; photostability; photooxidation; EXCITATION; PHOTON; DYES; Chemistry, Physical
Abstract
The photochemical stability of a series of two-photon absorbing (TPA) fluorene derivatives was investigated in air- and N-2-saturated acetonitrile (ACN) at room temperature. The quantum yields of the photoreactions, Phi, were determined at various concentrations of the fluorene derivatives, oxygen concentration of the solvent, and irradiation wavelength. The absorption and fluorescence spectra of the photoproducts, corresponding to different excitation conditions, were analyzed. Photooxidation and electron transfer processes are proposed as photobleaching mechanisms for the fluorene derivatives in ACN. The relatively low photochemical quantum yields (Phi similar to 10(-4)) make the derivatives particularly promising for linear and nonlinear optical applications. (C) 2004 Elsevier B.V. All rights reserved.
Journal Title
Journal of Photochemistry and Photobiology a-Chemistry
Volume
162
Issue/Number
2-3
Publication Date
1-1-2004
Document Type
Article
Language
English
First Page
489
Last Page
496
WOS Identifier
ISSN
1010-6030
Recommended Citation
"Photostability of a series of two-photon absorbing fluorene derivatives" (2004). Faculty Bibliography 2000s. 4203.
https://stars.library.ucf.edu/facultybib2000/4203
Comments
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