Nonlinear Optical Spectroscopy of Excited States in Polyfluorene

Abstract

We used a variety of nonlinear optical (NLO) spectroscopies to study the singlet excited states order, and primary photoexcitations in polyfluorene; an important blue emitting p-conjugated polymer. The polarized NLO spectroscopies include ultrafast pump-probe photomodulation, two-photon absorption, and electroabsorption. For completeness we also measured the linear absorption and photoluminescence spectra. We found that the primary photoexcitations in polyfluorene are singlet excitons.

20 pages, 6 figures, 1 table

References in corpus (3)

• Universal properties of quasi-one-dimensional excitons in semiconducting single-walled carbon nanotubes and $\pi$-conjugated polymers
• Theory of excited state absorptions in phenylene-based $\pi$-conjugated polymers
• Photoinduced absorption in disubstituted polyacetylenes: Comparison of theory with experiments

Cited by in corpus (1)

• Analysis of the excited-state absorption spectral bandshape of oligofluorenes