Nonlinear optical properties of π-conjugated compounds incorporating a saturated spacer group

T. Kogej*, F. Meyers, S. R. Marder, R. Silbey, Jean-Luc Bredas

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

We investigate theoretically the evolution, as a function of an applied external electric field, of the nonlinear optical (NLO) properties of a push-pull polyene molecule containing a saturated spacer group in the middle of the conjugated path; the role of the spacer group is to break the conjugation between the donor part and the acceptor part. As in the case of fully conjugated polyenes, we obtain derivative relationships that relate the molecular dipole moment and the polarizabilities at different orders, as a function of the external field. As the spacer that breaks the conjugation gets longer, the polarizabilities are calculated to be very high around the critical field that needs to be applied to lead to a full delocalization of the charge from the donor segment to the acceptor segment.

Original languageEnglish (US)
Pages (from-to)1141-1142
Number of pages2
JournalSynthetic Metals
Volume85
Issue number1-3
StatePublished - Mar 15 1997

Keywords

  • Electron density
  • Excitation spectra calculations
  • Non-linear optical methods
  • Semi-empirical models and model calculations

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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