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

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

Research output: Contribution to journalArticlepeer-review

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 MAPbI3 results in the formation of crystalline MAPbI3 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 MAI3(L), which instantly react with the Pb nanolayers converting them into pure MAPbI3 films without byproducts or unreacted components.

Original languageEnglish
Article numberSE1006
JournalJapanese journal of applied physics
Volume61
Issue numberSE
DOIs
Publication statusPublished - Jun 1 2022
Externally publishedYes

Keywords

  • flexible thin-film
  • hybrid perovskite
  • polyiodide-assisted method

ASJC Scopus subject areas

  • General Engineering
  • General Physics and Astronomy

Fingerprint

Dive into the research topics of 'Polyiodide-assisted fabrication of hybrid perovskite thin films from lead nanolayers on flexible substrates'. Together they form a unique fingerprint.

Cite this