Figure 5
From: Exciton binding energy and hydrogenic Rydberg series in layered ReS2

(a) and (c) Magnetic field evolution of PL spectra of bulk ReS2 at T = 1.8 K in polarizations E(<33°) B||b and E(<113°) B||b, respectively. (b) and (d) Energies of different excitonic transitions extracted from PL spectra recorded in σ and π polarizations, respectively.