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Nonlinear Optical Spectroscopy of Excited States in Polyfluorene

M. Tong·C. -X. Sheng·Z. V. Vardeny
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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.

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M. Tong, C. -X. Sheng, Z. V. Vardeny. 2006-10-10. Nonlinear Optical Spectroscopy of Excited States in Polyfluorene. https://doi.org/10.1103/physrevb.75.125207

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