Nanomaterials (Jun 2023)

Synthesis of Metal/SU-8 Nanocomposites through Photoreduction on SU-8 Substrates

  • Yan-Jun Huang,
  • Wen-Huei Chang,
  • Yi-Jui Chen,
  • Chun-Hung Lin

DOI
https://doi.org/10.3390/nano13111784
Journal volume & issue
Vol. 13, no. 11
p. 1784

Abstract

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The paper presents a simple, fast, and cost-effective method for creating metal/SU-8 nanocomposites by applying a metal precursor drop onto the surface or nanostructure of SU-8 and exposing it to UV light. No pre-mixing of the metal precursor with the SU-8 polymer or pre-synthesis of metal nanoparticles is required. A TEM analysis was conducted to confirm the composition and depth distribution of the silver nanoparticles, which penetrate the SU-8 film and uniformly form the Ag/SU-8 nanocomposites. The antibacterial properties of the nanocomposites were evaluated. Moreover, a composite surface with a top layer of gold nanodisks and a bottom layer of Ag/SU-8 nanocomposites was produced using the same photoreduction process with gold and silver precursors, respectively. The reduction parameters can be manipulated to customize the color and spectrum of various composite surfaces.

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