Temperature dependent photoluminescence of surfactant assisted electrochemically synthesized ZnSe nanostructures

摘要

In the present study, the zinc selenide (ZnSe) nanostructures developed by a cost-effective and straightforward electrodeposition method on tin-doped indium oxide (ITO). To examine the effect of surfactant on ZnSe nanostructure, Triethanolamine, Triton X-100, Hydrazine hydrate, and Ethylene diamine tetraacetic acid were the surfactants. The ZnSe nanostructures synthesized at 338 K by applying constant current density. The ZnSe nanorods, nanospheres, and nano-syringes developed using the galvanostatic mode of electrodeposition with the addition of different surfactant. The ZnSe nanostructures are characterized using various analytical tools. The X-ray diffraction spectroscopy (XRD), FT-Raman spectroscopy (FR-Raman), FTIR spectrum and X-ray photoelectron spectroscopy (XPS) are used to study structural properties. The UV-Vis spectroscopy is used to examine optical behavior. The field emission scanning electron microscopy (FESEM) engaged to study morphological features and the role of surfactant in the formation of ZnSe nanostructures. The spectrofluorometer is used to study the photoluminescence properties of ZnSe nanostructures. The present study focuses on the study of the role of surfactant in the development of ZnSe nanostructures and consequent temperature dependent photoluminescence properties. In the temperature dependent photoluminescence, the emission intensity is observed to vary with changing temperature. (C) 2018 Published by Elsevier B.V.