Issue 65, 2018

CuInS2–In2Se3 quantum dots – a novel material via a green synthesis approach

Abstract

Novel CuInS2–In2Se3 QDs were prepared by a two stage organometallic colloidal synthesis procedure. A layer of indium selenide was grown over the CuInS2 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.

Graphical abstract: CuInS2–In2Se3 quantum dots – a novel material via a green synthesis approach

Supplementary files

Article information

Article type
Paper
Submitted
04 Sep 2018
Accepted
29 Oct 2018
First published
05 Nov 2018
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2018,8, 37146-37150

CuInS2–In2Se3 quantum dots – a novel material via a green synthesis approach

N. J. Simi, L. Kuriakose, R. Vinayakan and V. V. Ison, RSC Adv., 2018, 8, 37146 DOI: 10.1039/C8RA07389A

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