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Abstract <p>This work presents a nanosecond pulsed laser treatment of silicon surfaces aimed at creating superhydrophilic structures. As a result, two types of surfaces were formed: GraySi and BlackSi, which differ in micromorphology and exhibit superhydrophilic properties. Additional modification of the BlackSi surface by zinc oxide (ZnO) deposition allowed for the formation of a uniform nanostructured layer, leading to a significant improvement of the material’s wicking capability. A quantitative evaluation of the wicking capability of the structures was carried out based on the Wi number, which was 1.9 for GraySi, 2.3 for BlackSi, and 3.6 for BlackSi+ZnO.</p>

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Nanosecond Laser Microtexturing of Silicon: Morphology and Wetting Properties

  • 期刊论文

  • 发表日期：

    2025年9月1日

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  • M. M. Vasilev,
  • A. A. Rodionov,
  • T. Giannakis,
  • M. Kandyla,
  • V. V. Terekhov,
  • S. V. Starinskiy

摘要

Abstract

This work presents a nanosecond pulsed laser treatment of silicon surfaces aimed at creating superhydrophilic structures. As a result, two types of surfaces were formed: GraySi and BlackSi, which differ in micromorphology and exhibit superhydrophilic properties. Additional modification of the BlackSi surface by zinc oxide (ZnO) deposition allowed for the formation of a uniform nanostructured layer, leading to a significant improvement of the material’s wicking capability. A quantitative evaluation of the wicking capability of the structures was carried out based on the Wi number, which was 1.9 for GraySi, 2.3 for BlackSi, and 3.6 for BlackSi+ZnO.