Anodized aluminum on transparent substrates as scaffold for perovskite growth

A proper growth of Iodine based perovskite nanocrystals is crucial for photovoltaic applications and this process is highly affected from the scaffold used for the crystallization. In this work, ordered nanoporous alumina, realized by controlled anodizing of two different thickness layer of Al, deposited on glass and Indium Tin Oxide (ITO), was used as the scaffold layer for the growth of perovskite nanocrystals. We present CH₃NH₃PbI₃ crystals successfully converted on such substrates, using three different dipping techniques. Scanning Electron Microscopy (SEM) characterization, optical microscope analysis and absorbance measurements of the as grown perovskite layers are reported.