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|Title:||Synthesis and characterization of a sol-gel derived ureasilicate hybrid organic-inorganic matrix containing CdS colloidal particles|
|Author(s):||Boev, Victor Ivanov|
Silva, Carlos J. R.
Gomes, M. J. M.
|Journal:||Journal of Sol-Gel Science and Technology|
|Citation:||"Journal of Sol-Gel Science and Technology". ISSN 0928-0707. 31 (2004) 131-135.|
|Abstract(s):||A hybrid organic-inorganic material filled with in situ generated inorganic particles has been synthesised by the homogeneous precipitation of CdS from aqueous solutions of Cd(NO3)2 and CH3CSNH2 . These highly transparent, homogeneous and flexible CdS doped xerogels were prepared by the sol-gel technique using, as precursors, organically modified silicon alkoxide (3-isocyanatepropyltriethoxysilane) and a di-amine functionalized oligopolyoxyethylene (Jeffamine ED-600), which by subsequent hydrolysis and condensation processes formed a solid 3-D network. TEM studies indicate the presence of round nanoparticles around 20 nm in diameter dispersed in a homogeneous amorphous matrix. The samples were also characterized by spectroscopic (UV-visible and photoluminescence) and XRD techniques.|
|Appears in Collections:||CDF - FAMO - Artigos/Papers (with refereeing)|
CDF - FMNC - Artigos/Papers (with refereeing)
CDQuim - Artigos (Papers)