Simi NJ, Vinayakan R, Ison VV. Photoinduced electron transfer in novel CdSe-Cu
2Se type II core-shell quantum dots.
RSC Adv 2019;
9:15092-15098. [PMID:
35516312 PMCID:
PMC9064209 DOI:
10.1039/c9ra02027f]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Accepted: 05/08/2019] [Indexed: 01/11/2023] Open
Abstract
Herein we report the synthesis, characterisation and electron transfer studies of CdSe–Cu2Se 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.
Herein we report the synthesis, characterisation and electron transfer studies of CdSe–Cu2Se QDs, a novel type II core–shell system.![]()
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