Fig. 4: Strain regulation in thick-film PSCs.
From: Strain regulates the photovoltaic performance of thick-film perovskites

Comparison of the XRD patterns of 1.4 M perovskite (a) and 2.0 M (b) perovskite, and perovskite thick film deposited via strain regulation strategy (SRS). c GIWAXS profiles of the thick perovskite film deposited via SRS with the angle of incident beam angle ranging from 0.3° to 1.0°. d Comparison of the conductivity of SRS, 2.0 M and 1.4 M perovskite films. e Certified J-V curves of SRS device with the logo of SIMIT inserted. Permission to use the logo was obtained from SIMIT.