Electroabsorption spectroscopy of β-carotene and α,ω-bis(1,1 -dimethylheptyl) - 1,3,5,7,9,11,13,15-hexadecaoctaene

F. Rohlfing, D. D.C. Bradley, A. Eberhardt, K. Müllen, J. Cornil, D. Beljonne, J. L. Brédas

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

We investigate the electric-field-induced change in the absorbance (i.e. electroabsorption response) of samples of β-carotene and α,ω-bis(1,1-dimethylheptyl)-1,3,5,7,9,11,13,15-hexadecaoctaene dispersed in a polystyrene matrix. From the change in absorbance, the refractive index and the thickness of the polymer film, the third-order nonlinear d.c. Kerr susceptibility, X(3)(-ω; 0,0,ω), can be calculated via the Kramers-Kronig relationship. Results are also presented for the simulated electroabsorption of β-carotene, derived from calculation of the absorption both in the presence and absence of an applied electric field.
Original languageEnglish (US)
Pages (from-to)35-38
Number of pages4
JournalSynthetic Metals
Volume76
Issue number1-3
DOIs
StatePublished - Jan 1 1996
Externally publishedYes

Keywords

  • Electroabsorption
  • Spectroscopy
  • α,ω-Bis(1,1-dimethylheptyl)-1,3,5,7,9,11,13,15-hexadecaoctaene
  • β-Carotene

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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