Photoinduced electron transfer in novel CdSe-CuSe type II core-shell quantum dots.

RSC Adv

Centre for Nano Bio Polymer Science and Technology, Department of Physics, St. Thomas College Palai, Arunapuram Kottayam-686574 Kerala India +919446126926.

Published: May 2019


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Article Abstract

Herein we report the synthesis, characterisation and electron transfer studies of CdSe-CuSe QDs, a novel type II core-shell system. The synthesis was achieved by a high temperature organometallic method with oleylamine as ligand. Structural and optical properties of the nanostructures were investigated using X-ray diffraction, high resolution transmission electron microscopy, selected area electron diffraction, energy dispersive X-ray spectroscopy, inductive coupled plasma optical emission spectroscopy, cyclic voltammetry, X-ray photoelectron spectroscopy and absorption spectroscopy. The electron transfer dynamics were investigated by observing the variations in steady state and time resolved emission spectra in the presence of an electron acceptor-methyl viologen. Localization of electrons in the shells was evident from the studies performed indicating efficient charge separation.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9064209PMC
http://dx.doi.org/10.1039/c9ra02027fDOI Listing

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