Preparation and Applications of Doped ZnS Nanoparticles

Doped ZnS seconductor nanocrystals as a new class of luminescent materials have become a research hotspot for their unique optical characteristics and great application prospects in various areas. As the particle size becoming smaller, the quantum efficiency of doped ZnS nanocrystals increases, and the band gap energy increases too, which results in a blue-shift in the absorption spectra and photoluminescent excitation spectra, while a red-shift in the photoluminescent emission spectrum due to quantum size effects. In this paper, the factors influencing the luminescence properties and luminescence quantum efficiency of doped ZnS nanoparticles are discussed, and recent developments of preparation and applications of doped ZnS semiconductor nanoparticle materials are reviewed.