Quantitative Analysis of Doping-Induced Polarons and Charge-Transfer Complexes of Poly(3-hexylthiophene) in Solution
Malavika Arvind, Claudia E. Tait, Michele Guerrini, Jannis Krumland, Ana M. Valencia, Caterina Cocchi, Ahmed E. Mansour, Norbert Koch, Stephen Barlow, Seth R. Marder, Jan Behrends, Dieter Neher
Abstract
. We estimate the ionization efficiency of the respective dopants for the two polymers in solution and report the molar extinction coefficient spectra of the three different species. Finally, we observe increased spin delocalization in regioregular compared to regiorandom P3HT by electron nuclear double resonance, suggesting that the ability of the charge to delocalize on aggregates of planarized polymer backbones plays a significant role in determining the doping mechanism.
Topics & Concepts
PolaronDopingCharge (physics)Materials scienceChemical physicsChemistryOptoelectronicsPhysicsQuantum mechanicsElectronOrganic Electronics and PhotovoltaicsConducting polymers and applicationsMolecular Junctions and Nanostructures