A problem that is currently increasing is to manage to supply electricity to society at the rate in which the population increases, a feasible option is solar energy, giving entry to photovoltaic devices such as solar panels and cells. Among the most remarkable devices are solar cells with perovskite type materials, such as hybrid inorganic-organic perovskite CH3NH3PbI3 (MAPbI3), this has a great capacity to absorb light (Eg>1.55 eV), however it is unstable both at temperatures above 85 ° C and humidity, has low thermal conductivity and phase change close to 40 ° C, which significantly limits the life of the material, therefore, there is a need to increase its stability. 

In the present work, photovoltaic devices with perovskite MAPbI3 structure doped with methylimidazole/3-bromo-1-phenyl-1-propene and N-[(3-Dimethylamino) propyl] methacrylamide (DMAPMA), have been analyzed in order to increase their stability, such dopes being called LI-1 and LI-2 respectively. The study of the solar cells was developed in a controlled environment inside a glove box, where the synthesis of LI-1 and LI-2 doped perovskite was performed, the deposition was done by the spin coating method. For its characterization, the X-ray diffraction technique (XRD) and a system for measuring energy conversion efficiency (PCE) were used. Finally, the results obtained show, in terms of structure, a tetragonal phase for the perovskites, validated with the 2D perovskite synthesis. On the other hand, the efficiency data indicate a higher value when incorporating DMAPMA, with 12.1%.

Diseño y síntesis de líquidos iónicos para perovskitas híbridas 3D con aplicación en celdas solares

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