Influence of Hole and Electron Transport Materials on Perovskite Sensitized Solar Cells-A Review

Organic/Inorganic lead halide perovskite solar cells (PrSCs) have received considerable attention in recent years as the promising materials capable of developing high performance photovoltaic devices due to their high light absorption coefficient, tunable band gap, high carrier mobility, long carrier diffusion length, low temperature processing and abundant elemental constituents. At present, perovskite solar cells have been ushered in a new era of renewed efforts towards increasing the efficiency and lowering the cost of solar cells. Recently, Perovskite solar cells have reached an efficiency of nearly 20%. This technology combines the benefits of Dye Sensitized Solar Cells (DSSCs), Organic Photovoltaics (OPVs), and thin film solar cells. In this review, we have reported the brief prior art perspective of perovskite based solar cells, take a cognizance of the current state-of-the-art, highlight the challenges and the opportunities. This review also gives an overview on the impact of different hole transport materials (HTM), electron transport materials (ETM) and the role of Carbon nanomaterials as ETM, HTM and electrode materials.