Fig. 3: Crystallinity and charge transport properties of MAPbI3 SCs.

a XRD and b XRD rocking curves for crystals grown on different substrates. c SCLC tests of hole-only and d electron-only devices for crystals grown on different substrates. The μτ product derived from the steady-state photocurrent method for crystals grown on e SAM and f F-gel substrates