Fig. 1: Comparison of chemically doped PBTTT thin films with conventional and newly developed dopants.
From: Supramolecular cocrystals built through redox-triggered ion intercalation in π-conjugated polymers

a Illustration of chemical doping of a PBTTT thin film. b Chemical structures of employed dopants and (c) their reported redox potentials accompanied with the approximate valence band top of PBTTT. d UV-Vis-NIR spectra, e conductivities, and (f) photoelectron yield spectroscopy measurements for pristine (black), F4TCNQ (blue), Mo(tfd-COCF3)3 (green), Li-TFSI via anion-exchange (orange), and TBPA-TFSI (red) doped PBTTT thin films. The error bars in the conductivities represent the uncertainty in the thickness of the PBTTT thin films and represent one standard deviation.