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Predictive patterning via solid-state dewetting of transferred single-crystal films.

Seungjin Ju1, Sangsun Lee1, Donghwan Kim1

  • 1Department of Materials Science and Engineering, Inha University, Incheon, Korea.

Nature Communications
|March 28, 2026
PubMed
Summary

This study guides single-crystal film dewetting to create precise patterns on various surfaces. This method enhances predictability for fabricating functional structures like thin-film transistors.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Surface Science

Background:

  • Dewetting of single-crystal films offers potential for fabricating functional structures.
  • Current methods lack predictability and extensibility for pattern formation.

Purpose of the Study:

  • To demonstrate guided dewetting of single-crystal films for regular pattern formation on arbitrary surfaces.
  • To enhance predictability and control over dewetting processes for nanofabrication.

Main Methods:

  • Utilized multiscale calculation schemes and experimental dewetting of palladium (Pd) films on silicon dioxide (SiO2) substrates.
  • Investigated the influence of Pd surface energy and gas adsorption on dewetting anisotropy.
  • Employed a combination of computational and experimental approaches.

Main Results:

  • Achieved guided dewetting to form regular patterns on various surfaces.
  • Identified anisotropic dewetting patterns influenced by crystallographic alignment and annealing conditions.
  • Demonstrated the formation of submicron channels for thin-film transistors.

Conclusions:

  • Templated solid-state dewetting can be reliably guided to create specific patterns.
  • This approach is feasible for fabricating functional structures on diverse substrates.
  • Offers improved control for nanoscale pattern generation.