Title

Photostability Of A Series Of Two-Photon Absorbing Flourene Derivatives

Keywords

Fluorene derivatives; Photochemical quantum yield; Photooxidation; Photostability

Abstract

The photochemical stability of a series of two-photon absorbing (TPA) fluorene derivatives was investigated in air- and N2-saturated acetonitrile (ACN) at room temperature. The quantum yields of the photoreactions, Φ, 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 (Φ∼10-4) make the derivatives particularly promising for linear and nonlinear optical applications. © 2004 Elsevier B.V. All rights reserved.

Publication Date

3-15-2004

Publication Title

Journal of Photochemistry and Photobiology A: Chemistry

Volume

162

Issue

2-3

Number of Pages

489-496

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/S1010-6030(03)00393-9

Socpus ID

1342307567 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/1342307567

This document is currently not available here.

Share

COinS