Effect of Ni doping on the structural, optical and morphological properties of CdSe QDs by chemical precipitation method

Abstract

This article reports the synthesis of undoped and Ni (1–5%) doped CdSe quantum dots (QDs) through chemical precipitation method. The structure and size of synthesized QDs were studied by X-ray diffraction pattern. The absorption wavelength of both samples were blue shifted with respect to the bulk CdSe phase due to quantum confinement effect. The enhanced photoluminescence was observed for Ni (2%) doped CdSe QDs. The morphology of the undoped and Ni (2%) doped CdSe QDs was studied using FE-TEM analysis.