Structural and optical behavior of thermally stable co-doped ZnS nanocrystallites

摘要

The structural, optical and thermal behavior of ZnS nanocrystals co-doped with Nit-' and Mn2 isoelectronic impurities are reported. Simple and more productive chemical co-precipitation method is used to synthesis the co-doped semiconductor nanoparticles. X-ray diffraction (XRD) and High resolution transmission electron microscope (HRTEM/SAED) results indicated that co-doped ZnS nanoparticles with a polycrystalline zinc blend structure were homogeneously well dispersed in the polymer matrix. UV-vis spectra confirm the strong quantum confinement effect in the co-doped samples. Photoluminescence (PL) spectra revealed three fold increase in the emission intensity at optimal co-dopant concentration and further increase leads to a quenching effect by the dopants. The thermal stability of the composite semiconductor was determined by thermogravimetric analysis. (C) 2016 Elsevier B.V. All rights reserved.