12 December 2021 3 2K Report

I prepared perovskite solar cells (Glass/FTO/compact TiO2/mesoporous TiO2/Perovskite/spiro/Gold) inside dry air glove box. The best obtained efficiency was 6.6% which is very low. The resistance of compact TiO2 and mesoporous TiO2 layers is very high (20 and 700 KΩ). I prepared compact TiO2 and mesoporous TiO2 layers by spray pyrolysis and spin coating methods, respectively. How can I solve the problem of the high resistance of compact TiO2 and mesoporous TiO2 layers in perovskite solar cells?

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