Realization of efficient perovskite solar cells with MEH:PPV hole transport layer

Organometal halide perovskite solar cells are an exciting class of emerging photovoltaics, because they hold promise for the realization of cost effective devices that can be fabricated by solution processing at room temperature. Here we report that reasonably good efficiencies are achievable in regular architecture of compact planer TiO2 based perovskite solar cells using MEH:PPV as hole transport material. Furthermore, perovskite film processing conditions have been optimized to get maximum power conversion efficiency of the devices. A maximum 7.18% power conversion efficiency with an open circuit voltage of 0.798 V, fill factor of 0.501 and short circuit current density of 18.0 mA cm−2 has been achieved under 100 mW cm−2 irradiance of AM1.5 illumination.