Fig. 7
From: Salutary impact of spontaneous oxidation in CH3NH3SnI3 on CZTS-based solar cell

Evolution of electron and hole quasi-Fermi levels with HTL carrier concentration along with close-up image of its evolution as inset.
From: Salutary impact of spontaneous oxidation in CH3NH3SnI3 on CZTS-based solar cell

Evolution of electron and hole quasi-Fermi levels with HTL carrier concentration along with close-up image of its evolution as inset.