P7　Enhancing Inverted MAPbI₃ Inverted Perovskite Solar Cell Performance and Stability by Additive Engineering

抄録

Organic-inorganic hybrid perovskites have garnered significant attention for their outstanding optoelectronic properties. Over the past decade, the efficiency of perovskite solar cells (PSCs) has surged from 3.8 % to 25.08 % [1,2], positioning them as a leading candidate for next-generation photovoltaic technology. In recent years, adding additives has been widely studied for preparing large-scale perovskite films from precursor solutions [3]. In this study, the perovskite precursor solution with the addition of a graphene-based additive was spin-coated in ambient air to produce high-quality methyl ammonium lead iodide (MAPbI₃) films. Compared to films without additives, the deposited MAPbI₃ films exhibited larger grain sizes and improved (110) crystal orientation. The planar PSC devices fabricated using an additive achieved a maximum efficiency of 13.47 %, with an average efficiency higher than that of devices without additives, around 8 %.

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