Fig. 5: Current density–voltage characteristics of a hole-only device at 275 K.
From: Space-charge-limited electron and hole currents in hybrid organic-inorganic perovskites
The current density–voltage characteristics (solid lines) are simulated with the same set of parameters under two different conditions for ionic charges: mobile positive ions and a uniform density of immobile negative ions (a) and mobile negative ions and immobile positive ions (b). The corresponding energy band diagrams and ion distributions for mobile positive ions (c, e) as well as mobile negative ions (d, f) are displayed at a forward bias of 0.5 V for the up scan (blue solid lines) and down scan (red solid lines). The dashed lines in e and f indicate the average ion densities.
