Continuous wave laser-assisted evaporation of halide perovskite thin films from a single stoichiometric source

Naga Prathibha Jasti, Shay Tirosh, Ansuman Halder, Eti Teblum, David Cahen

Research output: Contribution to journalArticlepeer-review

Abstract

We report continuous wave laser-assisted evaporation (CLE), a thin film deposition technique that yields phase-pure and stoichiometric thin films of halide perovskites (HaPs) from stoichiometric HaP targets. We use methylammonium lead bromide (MAPbBr3) to demonstrate the ability to grow with CLE well-oriented and smooth thin films on various substrates. Further, we show the broader applicability of CLE by preparing films of several other 3D HaP compounds, viz., methylammonium lead iodide, formamidinium lead bromide, and a 2D one, butylammonium lead iodide. CLE is a single-source, solvent-free, room-temperature process that needs only roughing pump vacuum; it allows the deposition of hybrid organic-inorganic compound films without needing post-thermal treatment or an additional organic precursor source to yield the intended product. The resulting films are polycrystalline and highly oriented. All these features, and the fact that one stoichiometric source serves as the target, make for an attractive, potentially scalable dry deposition approach.

Original languageEnglish
Article number043406
JournalJournal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Volume42
Issue number4
DOIs
StatePublished - 1 Jul 2024

Bibliographical note

Publisher Copyright:
© 2024 Author(s).

Fingerprint

Dive into the research topics of 'Continuous wave laser-assisted evaporation of halide perovskite thin films from a single stoichiometric source'. Together they form a unique fingerprint.

Cite this