Effects of thermal stress on hybrid perovskite solar cells with different encapsulation techniques

We subjected to both storage and thermal stress solid state solar cells based on organometal perovskites and using Spiro-OMeTAD as hole transport material. We applied two different sealing techniques to encapsulate the devices, in order to study the differences during the experiment. Applying both fast ciclo-voltammetry, transient measurement and very slow DC measurements, we correlated the results obtained during the 540h experiment to different degradation dynamics within the cell structure. The correlation allows us to distinguish at least two possible sources of degradation that can help understand loss mechanisms of perovskite solar cells.