Spin coated copper (i) thiocyanate as a hole transport layer for perovskite solar cells

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2018
Er, Utku
The solar energy is one of the most studied alternatives of clean and renewable energy source worldwide, while current developments and applications are highly promising. Although current applications with Si-based solar cells show higher efficiency relative to other photovoltaic systems such as the Perovskite Solar Cells (PSCs), the necessity of the Si-based solar cells on high illumination of solar radiation and expenditure of the production of those have pulled back the interest on the PSCs. Due to their proper electical and optical properties organo-lead halide perovskites have allured much attention for solar cell applications. To date; efficiencies of perovskite solar cells (PSCs) greater than 20% have been performed only with organic hole-transporting materials. However, the organic holetransporting materials used are normally quite expensive due to complicated synthetic procedure or high-purity requirements. In this work, we indicate the application of a cheap and efficient p-type inorganic hole-transporting material, copper thiocyanate, on mesoporous n-i-p configurated perovskite based devices. A power conversion efficiency exceeding 10% was succeeded under full sun illumination with low-temperature solution process for deposition of CuSCN and a fast solvent removal method allowed the creation of compact, highly conformal CuSCN layers that facilitate rapid carrier extraction and collection. This work performs a well defined cell configuration with optimized layers of the cell, and give excitement for utilization of cheap and abundant material for photovoltaic applications.
Citation Formats
U. Er, “Spin coated copper (i) thiocyanate as a hole transport layer for perovskite solar cells,” M.S. - Master of Science, Middle East Technical University, 2018.