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The present study includes synthesizing Transition Metal (Mn2+ & Ni2+) doped Zn-Sn-S NPs using a simple co-precipitation approach. A cubic crystal structure with microstructural variations between samples were revealed in Structural investigation by using Powder X-ray diffraction (PXRD). UV–Vis spectroscopy showed a blue shift, and the optical bandgap increased from 3.84 to 3.93 eV (Mn2+) and 3.91 eV (Ni2+). The predicted transmission efficiency for Mn2+ and Ni2+ doped Zn-Sn-NPs are 64% and 48%, respectively, on the lower wavelength side. The Ni2+ doped Zn-Sn-S NPs shows high transparent over the entire electromagnetic spectrum. The Photoluminescence (PL) spectra revealed increased luminescence intensity at 2% of Mn2+ and Ni2+ ions doped Zn-Sn-S NPs. This enhanced broad peak is positioned around 650 nm, and PL begins the quenching process via a non-radiative approach at the lower wavelength (482 nm) side. The functional group and chemical bonding of produced NPs were determined using a Fourier Transform Infrared (FTIR) spectrum. The Mn2+ and Ni2+ doped Zn-Sn-S NPs show increased antibacterial activity from the lower to higher concentration denoting it as a best anti-bacterial activity compare to Zn-Sn-S NPs. The enhanced antibacterial activity and PL performance of doped Zn-Sn-S NPs underscore the primary benefit of optical devices and biomedical applications.

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Mn/Ni Co-doping in Zn0.9Sn0.1S Nanoparticles: Effect on Antibacterial, Optical and Structural Properties

  • 会议论文

  • 发表日期：

    2026年

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  • A. Krishnamoorthy,
  • I. Devadoss,
  • A. B. Subbikshan,
  • V. M. Rajavel Muthaiah,
  • R. Selvam

摘要

The present study includes synthesizing Transition Metal (Mn2+ & Ni2+) doped Zn-Sn-S NPs using a simple co-precipitation approach. A cubic crystal structure with microstructural variations between samples were revealed in Structural investigation by using Powder X-ray diffraction (PXRD). UV–Vis spectroscopy showed a blue shift, and the optical bandgap increased from 3.84 to 3.93 eV (Mn2+) and 3.91 eV (Ni2+). The predicted transmission efficiency for Mn2+ and Ni2+ doped Zn-Sn-NPs are 64% and 48%, respectively, on the lower wavelength side. The Ni2+ doped Zn-Sn-S NPs shows high transparent over the entire electromagnetic spectrum. The Photoluminescence (PL) spectra revealed increased luminescence intensity at 2% of Mn2+ and Ni2+ ions doped Zn-Sn-S NPs. This enhanced broad peak is positioned around 650 nm, and PL begins the quenching process via a non-radiative approach at the lower wavelength (482 nm) side. The functional group and chemical bonding of produced NPs were determined using a Fourier Transform Infrared (FTIR) spectrum. The Mn2+ and Ni2+ doped Zn-Sn-S NPs show increased antibacterial activity from the lower to higher concentration denoting it as a best anti-bacterial activity compare to Zn-Sn-S NPs. The enhanced antibacterial activity and PL performance of doped Zn-Sn-S NPs underscore the primary benefit of optical devices and biomedical applications.