Photoelectric yields of models WD, eK16, and BT. Top panel: case of the neutral perylene (N_C = 20). The empirical yield from Jochims et al. (1996, solid black line) is overlaid. The dotted red line shows the Y₂ correction for free space (WD), which is not applied here. Bottom panel: case of a singly charged PAH cation N_C = 40. The solid black line shows the yield derived by Wenzel et al. (2020) from a sample of large PAHs cations. The dotted red line shows the impact of changing c_x.