Application Of Core-Shell Nanoparticles of CuI/Ag,Cu AND CuS/Ag,Cu For Diverse Optical Properties

Abstract

Core-shell nanoparticles have emerged as promising materials for optical applications due to their tunable properties and enhanced stability. This research investigates the synthesis, characterization, and optical properties of copper iodide and copper sulfide-based core-shell nanoparticles with silver and copper shells. We synthesized CuI/Ag,Cu and CuS/Ag,Cu nanoparticles using chemical reduction methods and characterized them using UV-Visible spectroscopy, X-ray diffraction, and transmission electron microscopy. The optical absorption spectra revealed distinct surface plasmon resonance peaks, with CuI/Ag,Cu nanoparticles showing absorption maxima at 420 nm and CuS/Ag,Cu at 385 nm. Particle size analysis indicated average diameters of 25-35 nm for CuI-based structures and 18-28 nm for CuS-based structures. The core-shell architecture demonstrated superior optical stability compared to single-component nanoparticles, with enhanced photoluminescence properties. Our findings suggest that these nanoparticles hold significant potential for applications in photocatalysis, sensing devices, and optoelectronic systems. The research contributes to understanding how core-shell composition influences optical behavior and provides practical synthesis protocols for developing advanced nanomaterials with tailored properties.