Stability and Performance of Nanostructured Perovskites for Light-Harvesting Applications

Halide perovskites in general and organometal-halide perovskites in particular have become an intensely researched topic due their excellent optical properties, cheap production costs, and easy fabrication procedures. A high absorption coefficient, paired with a direct bandgap and a wide variety of accessible deposition method, makes these perovskites an excellent materials class for use in a plethora of applications, ranging from solar cells to light-emitting diodes, and image sensors with architectures of varying length scales ranging from simple thin-film solid-state solar cells to highly ordered nanostructured solar cells and sensors. A downside of perovskites is their poor stability when subjected to ambient conditions as a consequence of poor encapsulation which, can be countered by using a nanostructured as additional encapsulation. In this work, different approaches to fabricate nanostructured perovskite-based light harvesting devices are outlined and the influences of nanostructuring on the performance and stability of the incorporated perovskites are discussed, as well as future research perspectives being highlighted.