To successfully enter the photovoltaic market, perovskite solar cells are still facing several tough challenges. Scalability of the processes and stability of the devices need to be ensured. The latter especially has been one of the main causes of skepticism for a long time and is still underestimated in most studies.

Outdoor operational conditions are rarely considered and only few reports can be found. All reports show that, as testing time increase, devices suffer both reversible and more importantly irreversible degradations, which potentially are not detected in a constant temperature, constant one-sun irradiance Maximum Power Point (MPP) tracking procedure, confirming the necessity for outdoor testing under real operational conditions.

This thesis relies on : design, fabrication and characterization of devices to be placed on outdoor test bench for testing under operational conditions.