Fig. 8: Summary of Δμ and Δp at different loading ratios of Y6 in PVK.

a Δμ and Δp values extracted from the fitting of the second harmonic EA spectra at different loading ratios of Y6 in PVK. b Comparison of the ratio of Δμ/ Δp (blue dashed line) to the UV-vis absorption spectral shift (brown dashed line) from Fig. 2c at different loading ratios of Y6 in PVK.