Determination and analysis of the dispersive optical constants of the 5,5′,6,6′-tetraphenyl-2,2′-bi([1,3]dithiolo[4,5-b][1,4]dithiinylidene)-DDQ complex thin film

Y. Atalay*, A. Başoǧlu, D. Avci, M. Arslan, T. Ozturk, E. Ertas

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The synthesis and optical properties of the 5,5′,6,6′-tetraphenyl-2,2′-bi([1,3]dithiolo [4,5-b] [1,4]dithiinylidene)-2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ) complex thin film were investigated by the optical characterization. The optical constants such as refractive index, extinction coefficient and absorption coefficient were determined using the transmittance T(λ) and reflectance R(λ) spectra and the refractive index dispersion was analyzed using single oscillator of Wemple-Didomenico model. The single oscillator energy E0 and the dispersion energy Ed were calculated. The effect of temperature on refractive dispersion and optical band gap Eg is also discussed. As a result, the annealing temperatures have an important effect on refractive index of thin film.

Original languageEnglish
Pages (from-to)1983-1989
Number of pages7
JournalPhysica B: Condensed Matter
Volume403
Issue number12
DOIs
Publication statusPublished - 1 Jun 2008

Keywords

  • Band gap materials
  • Charge transfer
  • Optical constants
  • UV-visible spectra

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