Researchers from the Department of Physics at Indian Institute of Technology Bombay examined how film morphology influenced charge transport in wide band gap perovskite solar cells with an absorber band gap of about 1.8 eV. Morphology was controlled through the timing of antisolvent dripping, where early dripping produced flat films with cracks, while delayed dripping led to a wrinkled structure. According to the analysis, temperature-dependent photoluminescence measurements indicated that wrinkled films exhibited lower activation energy, reflecting improved charge transport behavior. Based on the reported findings, scanning photocurrent microscopy further showed that wrinkled films supported longer lateral charge transport lengths than flat films, with additional enhancement observed after interface passivation. In line with the reported results, these combined effects reduced nonradiative voltage losses and were associated with a reported power conversion efficiency of 18.54 %. Taken together, the findings established a direct correlation between morphology-driven improvements in charge transport and reduced voltage losses in wide band gap perovskite solar cells.