Optical characterization of pristine poly(3-hexyl thiophene) films

Anthony J. Morfa, Teresa M. Barnes, Andrew J. Ferguson, Dean H. Levi, Gary Rumbles, Kathy L. Rowlen, Jao Van De Lagemaat

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

We describe a comprehensive model for the optical properties of pristine films of poly-(3-hexylthiophene) (P3HT). The presented model is anisotropic with the optical axis normal to the substrate plane, which is consistent with previous x-ray diffraction studies that show preferential edge-on packing of the polymer chains on the substrate. Peak locations and spacings are defined using a Huang-Rhys vibronic progression consistent with known phonon energies. We demonstrate that the model fits variable-angle spectroscopic ellipsometry and normal-incidence transmission data well, and accurately predicts angle- and polarization-dependent transmission and reflection data. The spectral features of the optical constants used in the model are in excellent agreement with published spectroscopic data on P3HT.

Original languageEnglish
Pages (from-to)186-194
Number of pages9
JournalJournal of Polymer Science, Part B: Polymer Physics
Volume49
Issue number3
DOIs
Publication statusPublished - Feb 1 2011

Fingerprint

Thiophenes
Thiophene
thiophenes
Optical constants
Spectroscopic ellipsometry
data transmission
Substrates
progressions
Data communication systems
ellipsometry
Polymers
x ray diffraction
Optical properties
incidence
Diffraction
spacing
Polarization
optical properties
X rays
polymers

Keywords

  • conducting polymers
  • conjugated polymers
  • dielectric properties
  • flexible electronics
  • modeling
  • optics
  • organic electronics
  • photophysics
  • polyaromatics
  • refractive index
  • solar cells

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

Cite this

Morfa, A. J., Barnes, T. M., Ferguson, A. J., Levi, D. H., Rumbles, G., Rowlen, K. L., & Van De Lagemaat, J. (2011). Optical characterization of pristine poly(3-hexyl thiophene) films. Journal of Polymer Science, Part B: Polymer Physics, 49(3), 186-194. https://doi.org/10.1002/polb.22183

Optical characterization of pristine poly(3-hexyl thiophene) films. / Morfa, Anthony J.; Barnes, Teresa M.; Ferguson, Andrew J.; Levi, Dean H.; Rumbles, Gary; Rowlen, Kathy L.; Van De Lagemaat, Jao.

In: Journal of Polymer Science, Part B: Polymer Physics, Vol. 49, No. 3, 01.02.2011, p. 186-194.

Research output: Contribution to journalArticle

Morfa, AJ, Barnes, TM, Ferguson, AJ, Levi, DH, Rumbles, G, Rowlen, KL & Van De Lagemaat, J 2011, 'Optical characterization of pristine poly(3-hexyl thiophene) films', Journal of Polymer Science, Part B: Polymer Physics, vol. 49, no. 3, pp. 186-194. https://doi.org/10.1002/polb.22183
Morfa, Anthony J. ; Barnes, Teresa M. ; Ferguson, Andrew J. ; Levi, Dean H. ; Rumbles, Gary ; Rowlen, Kathy L. ; Van De Lagemaat, Jao. / Optical characterization of pristine poly(3-hexyl thiophene) films. In: Journal of Polymer Science, Part B: Polymer Physics. 2011 ; Vol. 49, No. 3. pp. 186-194.
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