Perovskite Films on Plasmonic Metamaterials*

Perovskites are of rising importance for current applications in the field of sustainable energy. Of particular interest are the optical properties of patterned perovskite films. The properties of these gratings have been studied with simulations in COMSOL, providing predictions of how the reflection and absorption at different wavelengths may be tuned by varying the configuration of perovskite-coated gratings. Using inputs values for n and k determined through ellipsometry of the perovskite film, this work has led to promising grating designs that are now candidates for testing. One fabricated grating did not perform according to prediction, implying degradation in the material over time that was later confirmed.