Solar energy conversion by low-cost and efficient photovoltaic devices is a steadily increasing its contribution in the global demand of renewable energy. Hybrid and organic solar cells are highly promising power sources due to their significant progress in efficiency and processing technology. A paradigmatic example are Perovskite-based hybrid solar cells that have demonstrated very high performance, reaching the efficiency shown by silicon-based solar cells. In addition, these hybrid solar cells present fascinating opportunities for scientific research and technological development. The main topics of this conference are related to material preparation, modelling and fabrication of hybrid and organic photovoltaic cells, including dye-sensitized solar cells, organic thin film solar cells, quantum dot solar cells, and perovskite solar cells. IPEROP conference, will provide an excellent opportunity for scientists and engineers worldwide to exchange information and discussions on the latest developments in photovoltaics.