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All-inorganic large-area low-cost and durable flexible perovskite solar cells using copper foil as a substrate
B Abdollahi Nejand1, P Nazari2, S Gharibzadeh3
1Nanomaterials Group, Dept. of Materials Engineering, Tarbiat Modares University, Tehran, Iran. b.abdollahi@modares.ac.ir and School of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, Iran. v_ahmadi@modares.ac.ir.
Abstract:
Here, a low-cost perovskite solar cell using CuI and ZnO as the respective inorganic hole and electron transport layers is introduced. Copper foil is chosen as a cheap and low-weight conductive substrate which has a similar work function to ITO. Besides, copper foil is an interesting copper atom source for the growth of the upper cuprous iodide layer on copper foil. A spray coating of a transparent silver nanowire electrode is used as a top contact. The prepared device shows a maximum power conversion efficiency of 12.80% and long-term durability providing an environmentally and market friendly perovskite solar cell.
