Synthesis, effect of capping agents and optical properties of manganese-doped zinc sulphide nanoparticles.
Mn(2+)-doped ZnS nanoparticles have been successfully synthesized by a chemical precipitation method, using non-ionic surfactants such as PMMA and PEG. The particles were prepared in an air atmosphere at 80 °C. X-ray diffraction (XRD), transmission electron microscopy (TEM), UV-visible and photoluminescence (PL) studies were used to investigate the effect of the capping agent on the size, morphology and optical properties of the ZnS-Mn(2+) nanoparticles. Enhanced PL was observed from the surfactant-capped ZnS-Mn(2+) nanoparticles. The PL spectra showed a broad blue emission band in the range 460-445 nm and a Mn(2+)-related yellow-orange emission band in the range 581-583 nm.
Department of Physics, Annamalai University, Annamalainagar, 608002 Tamilnadu, India. murugadoss_g@yahoo.com
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D008345:Manganese / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D053758:Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D013440:Sulfides / Q000737:chemistry*; D014961:X-Ray Diffraction; D017967:Zinc Compounds / Q000737:chemistry*
D011108:Polymers; D013440:Sulfides; D017967:Zinc Compounds; D008345:Manganese; C031238:zinc sulfide