Fig. 3: Characterization of perovskite deposited on SAMs.
From: Flexibility meets rigidity: a self-assembled monolayer materials strategy for perovskite solar cells
a Top-view SEM images and particle-size statistical distributions of perovskite films deposited on PhpPACz and PATPA (Scale bar 1 μm). b SEM images of the perovskite films peeled off from the PhpPACz and PATPA-modified substrates (scale bar 1 μm). c The molecular dynamics simulation trajectory of PATPA molecule on the perovskite surface. d Angular evolution of SAM molecules on perovskite surface during AIMD simulations at 300 K. e Calculation of micro-strains in perovskite films based on PhpPACz and PATPA. f Trap density histogram extract from SCLC calculation results. g t-DOS plot of full devices. h Schematic diagram of morphology and defect passivation of perovskite films after deposition PhpPACz and PATPA, respectively.
