Mixed-halide perovskites solar cells through PbICl and PbCl2 precursor films by sequential chemical vapor deposition

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dc.contributor.authorNgqoloda, S
dc.contributor.authorArendse, C.J
dc.contributor.authorGuha, S
dc.date.accessioned2021-05-31T08:39:42Z
dc.date.available2021-05-31T08:39:42Z
dc.date.issued2021
dc.description.abstractMixed halide perovskites with chlorine (Cl) content have received significant interest due to better charge transport properties and longer diffusion length compared to pure iodine-based perovskites. The superior properties of Cl-doped perovskites improve solar cell device performance, although the quantification of Cl composition in the perovskite films remain difficult to achieve. Hence, it is difficult to correlate the Cl-quantity with the improved device performance. In this work, we deposited Cl-doped perovskite films through a facile three- and two-step sequential chemical vapor deposition (CVD) where lead halide films were deposited in the first steps of the process and subsequently converted to perovskites. No Cl substitution by iodine was observed during a sequential deposition of lead chloride and lead iodide films which reacted to form a lead chloride iodide phase (PbICl). The substitution of Cl by iodine ions only occurred during the conversion to perovskite phase.en_US
dc.identifier.citationNgqoloda, S. et al. (2021). Mixed-halide perovskites solar cells through PbICl and PbCl2 precursor films by sequential chemical vapor deposition. Solar Energy, 215, 179-188en_US
dc.identifier.issn0038092X
dc.identifier.uri10.1016/j.solener.2020.12.042
dc.identifier.urihttp://hdl.handle.net/10566/6222
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.subjectChemical vapor depositionen_US
dc.subjectChlorine doped perovskitesen_US
dc.subjectLarge grainsen_US
dc.subjectLead chloride iodideen_US
dc.subjectSubstitutionen_US
dc.titleMixed-halide perovskites solar cells through PbICl and PbCl2 precursor films by sequential chemical vapor depositionen_US
dc.typeArticleen_US

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