Details

Autor(en) / Beteiligte

• Turkevych, Ivan
• Kazaoui, Said
• Suemori, Kouji
• Tarasov, Alexey B.
• Goodilin, Eugene A.
• Shirakawa, Naoki
• Fukuda, Nobuko

Titel

Polyiodide-assisted fabrication of hybrid perovskite thin films from lead nanolayers on flexible substrates

Ist Teil von

• Japanese Journal of Applied Physics, 2022-06, Vol.61 (SE), p.SE1006

Ort / Verlag

Tokyo: IOP Publishing

Erscheinungsjahr

2022

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Abstract Despite remarkable progress in solvent-assisted processing of hybrid perovskite thin films, the scalable fabrication of their uniform and pin-hole free layers remains a difficult task, especially on flexible substrates. In contrast, we have demonstrated that the polyiodide-assisted conversion of Pb nanolayers into MAPbI 3 results in the formation of crystalline MAPbI 3 thin films on large flexible substrates already at room temperature. The exposure of stoichiometric Pb/MAI bilayers to iodine vapor leads to the formation of highly reactive polyiodide melts MAI 3(L) , which instantly react with the Pb nanolayers converting them into pure MAPbI 3 films without byproducts or unreacted components.