Hebalkar, Neha ; Kharrazi, Sharmin ; Ethiraj, Anita ; Urban, J. ; Fink, R. ; Kulkarni, S. K. (2004) Structural and optical investigations of SiO2-CdS core-shell particles Journal of Colloid and Interface Science, 278 (1). pp. 107-114. ISSN 0021-9797
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00219...
Related URL: http://dx.doi.org/10.1016/j.jcis.2004.05.037
Abstract
Cadmium sulfide nanoparticles (~5 nm), chemically capped using thioglycerol molecules, have been anchored onto silica particles (~80 nm) functionalized with 3-aminopropyltrimethoxysilane. Transmission electron microscopy clearly showed that at a low concentration of cadmium sulfide, nanoparticles were discretely and more or less uniformly attached onto the silica particles. At a high concentration of cadmium sulfide nanoparticles, an approximately 6-nm-thick compact shell of cadmium sulfide was formed on the silica particles. In both cases the nanocrystalline nature of cadmium sulfide particles was preserved, as is evident from X-ray diffraction and optical absorption spectra.
Item Type: | Article |
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Source: | Copyright of this article belongs to Elsevier Science. |
Keywords: | Core-shell Particles; Nanoparticles; Transmission Electron Microscopy; Fourier Transform Infrared Spectroscopy; Cadmium Sulfide; Silica |
ID Code: | 18010 |
Deposited On: | 17 Nov 2010 13:21 |
Last Modified: | 04 Jun 2011 08:46 |
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