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In relation to this article, we declare that there is no conflict of interest.
Publication history
Received July 8, 2024
Accepted August 19, 2024
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Time-Lapse Traces of Transformation of CdTe Nanoparticles into Nanowires via Self-Assembly

Department of Transportation System Engineering, Graduate School of Transportation , Korea National University of Transportation 1Department of Chemical and Biological Engineering , Korea National University of Transportation 2Department of Earth Science Education , Chungbuk National University 3Department of IT-Energy Convergence , Korea National University of Transportation
Korean Journal of Chemical Engineering, November 2024, 41(12), 3245-3249(5), https://doi.org/10.1007/s11814-024-00267-2

Abstract

Nanostructures formed by self-assembly of semiconductor nanoparticles have unique properties that make them useful

in various fi elds. In particular, cadmium telluride is being actively studied in the fi eld of solar cells on the strengths of its

long-term stability and low cost. In this study cadmium telluride nanoparticles were synthesized into nanowires in the dark

and their evolutionary process was investigated. Thioglycolic acid was selected from among several thiol-based stabilizers.

A ratio of 1.4:1 (thioglycolic acid to cadmium ion) was used rather than the traditional 2.4:1 ratio. In this study, nanowires

were prepared by self-assembly of nanoparticles and the process of forming straight nanowires was observed. Synthesized

nanowires were observed by using a scanning electron microscope and a transmission electron microscope, and the synthesized

nanostructures were characterized. The wavelength of photoluminescence was converted from 549.9 nm to 553.3 nm

as nanoparticles transformed into nanowires in an aqueous solution. The nanowire solution did not precipitate even after

60 days. The suggested synthetic procedure thus provides a viable pathway for the fabrication of nanomaterials.

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