And it can be boosted to 30 percent.
A perovskite solar cell with a unique passivation technique based on the utilization of guanidinium and octylammonium spacer cations has entered the solar scene; thanks to a team of researchers from Flinders University, the University of New South Wales, and Australian National University.made up of layers of materials that are either printed or coated with liquid inks or vacuum-deposited.
"To optimize the ratio between GuaBr and OABr components, three different volume ratios of 1:1 , 1:2 , and 2:1 were examined,” the team said. “After spin coating the 3D perovskite precursor solution on the substrate and annealing it on a hotplate at 100 C for 30 minutes, the passivation solution is spun on the substrate, followed by another annealing at 100 C for 10 minutes."As a result, the efficiency increased from 21.37 percent for the control cell to 23.
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