Chain Conformations and Photoluminescence of Poly(di-n-octylfluorene)

W. Chunwaschirasiri, B. Tanto, D. L. Huber, and M. J. Winokur
Phys. Rev. Lett. 94, 107402 – Published 18 March 2005

Abstract

The diverse steady-state spectroscopic properties of poly(di-n-octylfluorene) are addressed from a molecular-level perspective. Modeling of representative oligomers support the experimental observation of at least three distinguishable classes of conformational isomers with differing chain torsion angles. One class appears to be populated by a single compact structural isomer, and this conforms to the so-called β phase. A rigorous Franck-Condon analysis of the photoluminescence in conjunction with Frenkel-type exciton band structure calculations is performed. These results accurately reproduce all major spectral features of the photoabsorption and those of singlet exciton emission.

  • Figure
  • Figure
  • Figure
  • Received 22 September 2004

DOI:https://doi.org/10.1103/PhysRevLett.94.107402

©2005 American Physical Society

Authors & Affiliations

W. Chunwaschirasiri, B. Tanto, D. L. Huber, and M. J. Winokur

  • Department of Physics, University of Wisconsin, Madison, Wisconsin 53706, USA

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 94, Iss. 10 — 18 March 2005

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×