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CuInS(2)–In(2)Se(3) quantum dots – a novel material via a green synthesis approach

Novel CuInS(2)–In(2)Se(3) QDs were prepared by a two stage organometallic colloidal synthesis procedure. A layer of indium selenide was grown over the CuInS(2) QD core, under high temperature in the presence of oleylamine. The optical properties of the nanostructures grown were studied using UV-Vis...

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Detalles Bibliográficos
Autores principales: Simi, N. J., Kuriakose, Libin, Vinayakan, R., Ison, V. V.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9089271/
https://www.ncbi.nlm.nih.gov/pubmed/35557798
http://dx.doi.org/10.1039/c8ra07389a
Descripción
Sumario:Novel CuInS(2)–In(2)Se(3) QDs were prepared by a two stage organometallic colloidal synthesis procedure. A layer of indium selenide was grown over the CuInS(2) QD core, under high temperature in the presence of oleylamine. The optical properties of the nanostructures grown were studied using UV-Vis absorption spectroscopy and the band gap obtained was in line with the cyclic voltammetry (CV) results. The elemental composition was analysed using energy dispersive X-ray spectroscopy (EDAX), inductive coupled plasma-atomic emission spectroscopy (ICP-AES) and X-ray photoelectron spectroscopy (XPS). The structural properties were investigated using X-ray diffraction (XRD) and high resolution transmission electron microscopy (HRTEM). The TEM images showed spherical nanostructures of size about 4.8 nm with well-defined lattice planes which were also evident from selected area electron diffraction (SAED) patterns. The XRD pattern indicated a tetragonal chalcopyrite crystal structure for the nanostructures.