Abstract: Perovskite solar cells have made remarkable progress in photovoltaic field due to their high photoelectric conversion efficiency (PCE) and low cost. However, poor stability is one of the main factors restricting their commercial application, mainly due to the poor stability of perovskite materials and charge transport materials. In this paper, perovskite solar cells based on all inorganic charge transport layer were fabricated, and the PCE of device was improved by introducing F2HCNQ doped PTAA to modify NiOx/perovskite interface and C60 to modify perovskite/SnO2 interface. Especially, the work function and conductivity of PTAA were significantly improved by doping novel F2HCNQ, resulting in enhanced open circuit voltage and fill factor. Perovskite solar cells based on the inorganic charge transport layers achieved 17.52% PCE, and good stability with the PCE maintained above 85% after 500 h storage at humidity of 20%—40% and temperature of 25℃.
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