Laser printed metal halide perovskites

Colin Tyznik, Zachary A. Lamport, Jeni Sorli, David Becker-Koch, Yana Vaynzof, Yueh Lin Loo, Oana D. Jurchescu

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Hybrid organic–inorganic perovskites enable the production of semiconductor devices at low cost from solution processing. Their remarkable structural versatility offers unique and diverse physical properties, leading to their incorporation in a wide variety of applications. One major limitation is the significant negative environmental impact associated with developing perovskite devices; common solvents used in perovskite film deposition are highly toxic, which represents a barrier to the transfer to an industrial setting of the perovskite technology. Here we report on the fabrication and characterisation of the first laser printed organic–inorganic perovskite films. The method is solvent-free, scalable and low-cost, allowing fast deposition over large areas and with minimal material waste. We show that the laser printed perovskite films are crystalline and exhibit electrical properties on par with single crystals, despite the fact that the microstructure consists of randomly oriented crystallites. The toner used during printing is designed for optimal film transfer and the vertical separation of its components results in a segregation of the perovskite film in the middle of the stack, therefore also encapsulating the perovskite layer, a process that yields a remarkable resilience to defect formation upon environmental exposure.

Original languageEnglish (US)
Article number034010
JournalJPhys Materials
Volume3
Issue number3
DOIs
StatePublished - Jul 2020

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics

Keywords

  • Charge transport
  • Perovskite
  • Printing

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