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

    Authors

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

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    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

    Share

    COinS