Fig. 3.

Electronic spectral signatures of the PZn_n electron polarons. (A) Absorption spectra of PZn_n neutral (solid fill) and anion radical states (checked fill) in THF solvent; polaron bands P₁ and P₂ are labeled. (B) Electron polaron P₂ and P₁ transition manifold maxima and associated integrated oscillator strengths. ^aPeak maxima do not reflect [0,0] transition energies due to the vibronic and electronic complexity of the polaron spectra. ^aDetails of oscillator strength determination of various electronic transitions are reported in SI Appendix.