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<p>Traditional polymer-assisted deposition has been shown to produce highly uniform thin films of metal oxides, including actinide oxides. While producing thicker films for nuclear targets is possible through repeated coating application, we exchanged the dissolved metal species with nanoparticles to maximize the thickness that can be achieved with an individual layer. Using CeO<sub>2</sub> nanoparticles in a polyethyleneimine matrix, we produced targets with single-layer areal densities of 0.22 ± 0.01&#xa0;mg·cm<sup>−2</sup> (1σ) and thicknesses of 690 ± 80&#xa0;nm (1σ). A custom 3D-printed spin coating chuck attachment with an inlay improved target homogeneity and will streamline future work with radioactive materials.</p>

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Polymer-assisted deposition of nanoparticle feedstocks for target fabrication

  • 期刊论文

  • 发表日期：

    2025年11月20日

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  • Kevin J. Maxwell,
  • Ashley M. Hastings,
  • Tashi Parsons-Davis,
  • Jennifer A. Shusterman

摘要

Traditional polymer-assisted deposition has been shown to produce highly uniform thin films of metal oxides, including actinide oxides. While producing thicker films for nuclear targets is possible through repeated coating application, we exchanged the dissolved metal species with nanoparticles to maximize the thickness that can be achieved with an individual layer. Using CeO2 nanoparticles in a polyethyleneimine matrix, we produced targets with single-layer areal densities of 0.22 ± 0.01 mg·cm−2 (1σ) and thicknesses of 690 ± 80 nm (1σ). A custom 3D-printed spin coating chuck attachment with an inlay improved target homogeneity and will streamline future work with radioactive materials.