Figure 1.8
AFM topographic images and PFM phase images measured (top) in the dark and (bottom) under illumination for CH3NH3PbI3 cuboids with size of 700 nm. Reproduced with permission from H.-S. Kim et al., J. Phys. Chem. Lett., 2015, 6, 1729–1735. Copyright (2015) American Chemical Society.20
