Arendse, Christopher J.Maaza, MalikMabiala, Floyd Lionel2021-03-192024-10-302021-03-192024-10-302021https://hdl.handle.net/10566/16626>Magister Scientiae - MScOrganic-inorganic lead-based perovskite has exhibited great performance in the past few years. However, the lead (Pb) embedded in those compounds is a significant drawback to further progress, due to its environmental toxicity. As an alternative, tin (Sn) based-perovskites have demonstrated promising results in terms of electrical and optical properties for photovoltaic devices, but the oxidation of tin ion- from stannous ion (Sn2+) to stannic ion (Sn4+) presents a problem in terms of performance and stability when exposed to ambient conditions. A more feasible approach may be in a Pb-Sn binary metal perovskite in pursuit of efficient, stable perovskite solar cells (PSCs) with reduced Pb-content, as compared to pure Pb- or Sn-based PSCs. Here, we report on the deposition of a Pb-Sn binary perovskite by sequential chemical vapor deposition.enOrganic-inorganic perovskiteBinary metal alloyChemical vapour deposition (CVD)X-ray diffraction (XRD)UV-VIS spectroscopyUniversity of Western Cape