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Micro-to-Nanometer Scale Patterning of Perovskite Inks via Controlled Self-Assemblies.

Misun Kang1,2, Dooho Choi3, Jae Young Bae2

  • 1Department of Advanced Materials Engineering, Keimyung University, Daegu 42601, Korea.

Materials (Basel, Switzerland)
|February 25, 2022
PubMed
Summary

This review details advances in micro-to-nanometer scale patterning of perovskite inks. Controlled self-assembly and evaporation techniques are key for creating ordered perovskite structures for optoelectronics.

Keywords:
Marangoni flowcoffee ring effectcontrolled self-assembliesmicro-to-nanoscale patterningperovskite inks

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Optoelectronics

Background:

  • Perovskite materials have garnered significant interest in the last decade for their exceptional properties in optoelectronics and photodetectors.
  • Precise control over perovskite material structure at the micro- to nanometer scale is crucial for device integration.

Purpose of the Study:

  • To review recent advancements in micro- to nanometer scale patterning of perovskite inks.
  • To highlight novel techniques for achieving spatially ordered and crystallographically oriented perovskite structures.
  • To introduce the potential applications of patterned perovskite inks.

Main Methods:

  • Focus on controlled self-assembly techniques such as blade coating, inkjet printing, and nanoimprinting.
  • Systematic review of unconventional patterning methods based on irreversible solution evaporation.
  • Exploration of techniques utilizing polymer solution evaporation and the coffee ring effect.

Main Results:

  • Recent advances enable the creation of highly ordered and crystallographically oriented perovskite structures with high regularity.
  • Evaporation-driven patterning techniques offer accessible and effective methods for perovskite material structuring.
  • Patterned perovskite inks show significant potential for integration into advanced optoelectronic and photodetector systems.

Conclusions:

  • Micro- to nanometer scale patterning is a critical factor for the successful integration of perovskite materials into functional devices.
  • Controlled self-assembly and evaporation-based methods provide powerful tools for fabricating ordered perovskite structures.
  • The reviewed patterning techniques pave the way for enhanced performance and novel applications of perovskite-based optoelectronics.