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Title: Turning “on” and “off” nucleation and growth: Microwave assisted synthesis of CdS clusters and nanoparticles

Abstract

Graphical abstract: Display Omitted Highlights: ► Cadmium acetate and DMSO were employed as ion precursors. ► New approach to controlled CdS nanoparticle synthesis. ► CdS clusters and nanoparticles synthesis achieved using microwave irradiation. ► Microwave irradiation turns on and off nanoparticle growth. ► The formation of clusters, embryos and nanoparticles studied with optical spectroscopy. -- Abstract: We report here on the formation of CdS NP from the microwave assisted reaction of Cd(CH{sub 3}CO{sub 2}){sub 2} with dimethylsulfoxide (DMSO). DMSO serves as the solvent and a controlled source of sulfide ions to form (CdS){sub 1≤n≤5} clusters at the early stages of the process. The clusters grow into CdS nanoparticles, with diameters that range from 1.6 nm up to over 250 nm, with microwave heating. The time dependence of the onset of light absorption and absorbance are consistent with a concurrent nucleation and growth processes. The formation of clusters and nuclei and their subsequent reactions is controlled by turning on and off the energy supply consistent with an energy barrier to the formation of CdS nanostructures.

Authors:
; ; ; ; ;  [1];  [1]
  1. Chemical Imaging Center, Department of Chemistry, The University of Puerto Rico at Mayaguez, Mayaguez, PR 00680 (United States)
Publication Date:
OSTI Identifier:
22215627
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 47; Journal Issue: 11; Other Information: Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; ABSORPTION; CADMIUM SULFIDES; DMSO; ELECTRON MICROSCOPY; EMBRYOS; IRRADIATION; MICROWAVE HEATING; NANOSTRUCTURES; NUCLEATION; SYNTHESIS

Citation Formats

Ferrer, Edmy, Nater, Sariann, Rivera, Daniel, Colon, Jean Marie, Zayas, Francisco, Gonzalez, Miguel, and Castro, Miguel E., E-mail: miguel.castro2@upr.edu. Turning “on” and “off” nucleation and growth: Microwave assisted synthesis of CdS clusters and nanoparticles. United States: N. p., 2012. Web. doi:10.1016/J.MATERRESBULL.2011.02.019.
Ferrer, Edmy, Nater, Sariann, Rivera, Daniel, Colon, Jean Marie, Zayas, Francisco, Gonzalez, Miguel, & Castro, Miguel E., E-mail: miguel.castro2@upr.edu. Turning “on” and “off” nucleation and growth: Microwave assisted synthesis of CdS clusters and nanoparticles. United States. doi:10.1016/J.MATERRESBULL.2011.02.019.
Ferrer, Edmy, Nater, Sariann, Rivera, Daniel, Colon, Jean Marie, Zayas, Francisco, Gonzalez, Miguel, and Castro, Miguel E., E-mail: miguel.castro2@upr.edu. Thu . "Turning “on” and “off” nucleation and growth: Microwave assisted synthesis of CdS clusters and nanoparticles". United States. doi:10.1016/J.MATERRESBULL.2011.02.019.
@article{osti_22215627,
title = {Turning “on” and “off” nucleation and growth: Microwave assisted synthesis of CdS clusters and nanoparticles},
author = {Ferrer, Edmy and Nater, Sariann and Rivera, Daniel and Colon, Jean Marie and Zayas, Francisco and Gonzalez, Miguel and Castro, Miguel E., E-mail: miguel.castro2@upr.edu},
abstractNote = {Graphical abstract: Display Omitted Highlights: ► Cadmium acetate and DMSO were employed as ion precursors. ► New approach to controlled CdS nanoparticle synthesis. ► CdS clusters and nanoparticles synthesis achieved using microwave irradiation. ► Microwave irradiation turns on and off nanoparticle growth. ► The formation of clusters, embryos and nanoparticles studied with optical spectroscopy. -- Abstract: We report here on the formation of CdS NP from the microwave assisted reaction of Cd(CH{sub 3}CO{sub 2}){sub 2} with dimethylsulfoxide (DMSO). DMSO serves as the solvent and a controlled source of sulfide ions to form (CdS){sub 1≤n≤5} clusters at the early stages of the process. The clusters grow into CdS nanoparticles, with diameters that range from 1.6 nm up to over 250 nm, with microwave heating. The time dependence of the onset of light absorption and absorbance are consistent with a concurrent nucleation and growth processes. The formation of clusters and nuclei and their subsequent reactions is controlled by turning on and off the energy supply consistent with an energy barrier to the formation of CdS nanostructures.},
doi = {10.1016/J.MATERRESBULL.2011.02.019},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 11,
volume = 47,
place = {United States},
year = {2012},
month = {11}
}