Title

A New Blue Light-Emitting Oligofluorene Glass: Synthesis, Characterization And Photophysical Properties

Keywords

Excitation anisotropy; Fluorescence; Oligofluorene derivative; Organic glass

Abstract

The synthesis, electrochemical, thermal and spectroscopic properties of the oligoaminofluorene derivative 9,9-didecyl-N,N-bis(9,9-didecyl-7-N,N-diphenylaminofluoren-2-yl)-N,N-diphenylflu orene-2,7-diamine (4), an organic glass, were investigated in solvents of differing polarity at room and 77 K temperature, including quantum yield and lifetime. The oligomer exhibited a glass transition near room temperature and was thermally stable to ca 400°C. Intramolecular interactions between the fluorenyl chromophores were investigated. The relatively complex nature of the emission band of 4 was characterized by reduced anisotropy and two components in its fluorescence decay at room temperature. Emission spectra of 4 at 77 K exhibited a single component in its fluorescence decay and a dependence on the excitation wavelength at the red edge of the absorption band. A spectroscopic model of 4 is proposed to explain the observed spectral behavior of this potentially important electroluminescent material. Copyright © 2003 John Wiley & Sons, Ltd.

Publication Date

3-1-2003

Publication Title

Journal of Physical Organic Chemistry

Volume

16

Issue

3

Number of Pages

194-201

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1002/poc.593

Socpus ID

0037369504 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0037369504

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