Jiang, D.; Liu, Z.; Li, J.; Cao, H.; Qian, Y.; Ren, Z.; Zhang, S.; Qiu, Y.; Zhang, C.; Wei, J.; Yang, L.; Yin, S.: Non-laser and all-vapor-phase processed perovskite solar modules stabilized by naturally formed barrier layers. Joule 8 (2024), p. 1161-1175
10.1016/j.joule.2024.02.007
Abstract:
When the module channels are made by conventional laser scribing, the heat-sensitive perovskite materials decompose, and the decomposition of perovskites in the open channel leads to reduced module stability, and the electrode corrosion caused by the direct contact between the exposed perovskites and the metal electrode significantly increases the series resistance of the module. We develop a non-laser additive method for manufacturing PSMs, in which an adjustable wire mask (AWM) was used to form the channels that were traditionally scribed by lasers. All layers, including perovskites, hole/electron transporting, and passivating and electrode layers, were fabricated via vapor phase deposition, and by tuning the precursor composition, a power conversion efficiency (PCE) of 21.7% was obtained. Geometrical fill factor (GFF) of 98% was achieved via the method, even higher than most laser-processed PSMs, and thanks to the naturally formed barrier layers, the modules showed good stability.