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Photo-physical properties of lead-tin binary Perovskite thin films

>Magister Scientiae - MSc / Organic-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.

Identiferoai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:uwc/oai:etd.uwc.ac.za:11394/8002
Date January 2021
CreatorsMabiala, Floyd Lionel
ContributorsArendse, Christopher J., Maaza, Malik
PublisherUniversity of Western Cape
Source SetsSouth African National ETD Portal
LanguageEnglish
Detected LanguageEnglish
RightsUniversity of Western Cape

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