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Azevedo, J.
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Publications (7/7 displayed)
- 2018High purity and crystalline thin films of methylammonium lead iodide perovskites by a vapor deposition approachcitations
- 2017On the Deposition of Lead Halide Perovskite Precursors by Physical Vapor Methodcitations
- 2016Soluble Salts Amplify the Effect of Small Heterogeneities in the Structure of Porous Building Materials During Dryingcitations
- 2016Friction Stir Welding of Shipbuilding Steel with Primercitations
- 2014Ultra-long Fe nanowires by pulsed electrodeposition with full filling of alumina templatescitations
- 2012Influence of the Rest Pulse Duration in Pulsed Electrodeposition of Fe Nanowirescitations
- 2011Serum total and bone alkaline phosphatase and tartrate-resistant acid phosphatase activities for the assessment of bone fracture healing in dogscitations
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article
High purity and crystalline thin films of methylammonium lead iodide perovskites by a vapor deposition approach
Abstract
A procedure for the physical vapor deposition (PVD), in high-vacuum conditions, for high purity and crystalline methylammonium lead halide perovskite thin films is described. This procedure and methodology can be used to fabricate high-performance hybrid organic-inorganic materials that have recently emerged as the next-generation photovoltaic technology. PVD of methylammonium iodide and lead iodide to produce lead halide perovskite thin films was optimized according to the equilibrium vapor pressures of corresponding precursors evaporated from Knudsen effusion cells. Optical properties of perovskite thin films were characterized by UV-Vis-NIR and fluorescence spectroscopy. The high crystallinity of vapor-deposited thin films on glass, indium fin oxide, fluorine-doped fin oxide, and TiO2 surfaces was proved by scanning electron microscopy and X-ray diffraction. This vapor deposition approach leads to the production of very pure, crystalline and high stable perovskite thin films.