Formation of CdS nanoparticles using starch as capping agent

P. Rodríguez, N. Muñoz-Aguirre, E. San Martin Martínez, G. Gonzalez, O. Zelaya, J. Mendoza

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Abstract

CdS nanoparticles have been synthesized using starch as capping agent in aqueous solution. The morphology and crystalline structure of such samples were measured by high-resolution transmission electron microscopy and X-ray diffraction, respectively. The average grain size of the nanoparticles determined by these techniques was of the order of 5 nm. Photoluminescence of CdS nanoparticles shows a strong emission peak below to the band gap bulk semiconductor attributed to center trap states, also the broadening peak was interpreted in terms of electron-phonon interaction. © 2008 Elsevier B.V. All rights reserved.
Original languageAmerican English
Pages (from-to)740-742
Number of pages665
JournalApplied Surface Science
DOIs
StatePublished - 30 Nov 2008
Externally publishedYes

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