Title

A new blue light-emitting oligofluorene glass: synthesis, characterization and photophysical properties

Authors

Authors

K. D. Belfield; M. V. Bondar; A. R. Morales; O. Yavuz;O. V. Przhonska

Comments

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Abbreviated Journal Title

J. Phys. Org. Chem.

Keywords

oligofluorene derivative; fluorescence; excitation anisotropy; organic; glass; ABSORBING FLUORENE DERIVATIVES; DYES; CHROMOPHORES; Chemistry, Organic; Chemistry, Physical

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-diphenylfluorene-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 400degreesC. 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 (C) 2003 John Wiley Sons, Ltd.

Journal Title

Journal of Physical Organic Chemistry

Volume

16

Issue/Number

3

Publication Date

1-1-2003

Document Type

Article

Language

English

First Page

194

Last Page

201

WOS Identifier

WOS:000181348100007

ISSN

0894-3230

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