Laser-Induced Au Catalyst Generation for Tailored ZnO Nanostructure Growth.

ABSTRACT: ZnO nanostructures, semiconductors with attractive optical properties, are typically grown by thermal chemical vapor deposition for optimal growth control. Their growth is well investigated, but commonly results in the entire substrate being covered with identical ZnO nanostructures. At best a limited, binary growth control is achieved with masks or lithographic processes. We demonstrate nanosecond laser-induced Au catalyst generation on Si(100) wafers, resulting in controlled ZnO nanostructure growth. Scanning electron and atomic force microscopy measurements reveal the laser pulse's influence on the substrate's and catalyst's properties, e.g., nanoparticle size and distribution. The laser-induced formation of a thin SiO₂-layer on the catalysts plays a key role in the subsequen

SUBMITTER: Durbach S 

PROVIDER: S-EPMC10097237 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature