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CdS nanocrystals from a quaternary water-in-oil microemulsion: Preparation and characterization of self-assembled layers

TitleCdS nanocrystals from a quaternary water-in-oil microemulsion: Preparation and characterization of self-assembled layers
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2001
AuthorsCurri, M.L., Leo G., Alvisi Marco, Agostiano A., Monica M.D., and Vasanelli L.
JournalJournal of Colloid and Interface Science
Volume243
Pagination165-170
ISSN00219797
KeywordsAdhesion, air, article, cadmium derivative, Capping agents, chemical structure, cosurfactant, crystal, Immobilization, microemulsion, Microemulsions, nanoparticle, Nanostructured materials, oil, priority journal, quantum mechanics, Reaction analysis, Scanning tunneling microscopy, Solutions, Spectroscopy, structure analysis, Substrates, sulfur derivative, synthesis, Ultraviolet spectroscopy, Water, X ray diffraction, X ray diffraction analysis, X ray photoelectron spectroscopy
Abstract

High-crystalline CdS nanocrystals, prepared by means of an improved synthetic route that exploits a quaternary water-in-oil microemulsion are immobilized on gold and quartz substrates by self-assembly. The obtained nanocrystals and layers are characterised by scanning tunneling microscopy, X-ray photoelectron spectroscopy, X-ray diffraction, and UV-vis spectroscopy. The resuits indicate that the CdS nanocrystals show a good adherence to the substrate, are quite stable in air for months, and still retain their size and quantum properties after immobilization. The data are discussed in terms of the increased stability of the nanocrystals in solution due to the presence of the co-surfactant that acts as capping agent. © 2001 Academic Press.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0035504593&doi=10.1006%2fjcis.2001.7835&partnerID=40&md5=6f1a02452c7c9782e0c59655f9c6444a
DOI10.1006/jcis.2001.7835
Citation KeyCurri2001165