Open AccessEffect of Nickel Doping on Optical Properties of CdS Nanoparticles Synthesized via. Co-precipitation Technique
Author(s) -
Suresh Kumar,
Jyoti Sharma
Publication year - 2017
Publication title -
material science research india/material science research india
Language(s) - English
Resource type - Journals
eISSN - 2394-0565
pISSN - 0973-3469
DOI - 10.13005/msri/140102
Subject(s) - materials science , nanoparticle , nickel , doping , absorption edge , precipitation , band gap , ion , coprecipitation , blueshift , inorganic chemistry , absorption (acoustics) , cadmium , chemical engineering , analytical chemistry (journal) , nanotechnology , photoluminescence , chemistry , optoelectronics , metallurgy , organic chemistry , physics , meteorology , engineering , composite material
This work presents a comprehensive study on the optical behavior of cadmium sulphide (CdS) nanoparticles under the effect of nickel (Ni2+ ions) doping. The pristine and Ni-doped CdS nanoparticles (CdS:Ni) have been synthesized via. conventional co-precipitation technique and analyzed using UV-visible spectrophotometer. Ni2+ ions with different concentrations (2% and 4%) incorporate in CdS structure, modify it and hence, exhibit a red shift of absorption edge. The increase in Ni2+ ions concentration from 0% to 4% leads to tailor the optical band gap of CdS from 2.70 eV to 2.47 eV. These band gap values are higher than that of bulk CdS which confirm a quantum size effect in the synthesized nanoparticles.