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Microemulsion assisted sol-gel procedure for nanostructured C60 silica – based materials synthesis

M. MIHALY1,* , A. ROGOZEA2, A. COMANESCU1, E. VASILE3, A. MEGHEA1

Affiliation

  1. University Politehnica Bucharest, Faculty of Applied Chemistry and Materials Science, 1 Polizu, 011061, Bucharest, ROMANIA
  2. ILIE MURGULESCU Institute of Physical Chemistry of the Romanian Academy, 202 Splaiul Independentei, 060021, Bucharest, ROMANIA
  3. METAV Research&Development, 020011, 31 C.A. Rosetti, Bucharest, ROMANIA

Abstract

Hybride C60 – silica based materials have been synthesized by microemulsion assisted sol – gel procedure. In this respect, the versatility of these soft – nanotechnologies has been exploited in order to obtain various type of nanostructures, such as C60 – silica coated nanoparticles and C60 – silica based composites The size, morphology and distribution of fullerene within the silica matrix, in liquid/solid phase, have been evaluated by adequate techniques: DLS, HR-TEM/SAED, XRD, BET. The size effect, photostability and semiconducting properties (band gap values) of the materials obtained have been quantified by means UV-VIS-NIR diffuse reflectance spectra. By corroborating these physico – chemical characteristics it can be concluded that these C60 – silica based hybride nanomaterials are promising in applications as optical devices, light-induced charge separation, semiconductors, chemical sensors, catalysis and in the medical field..

Keywords

C60 – silica based nanomaterials, Sol-gel microemulsion, Photostability, Semiconductor.

Submitted at: Sept. 2, 2010
Accepted at: Oct. 14, 2010

Citation

M. MIHALY, A. ROGOZEA, A. COMANESCU, E. VASILE, A. MEGHEA, Microemulsion assisted sol-gel procedure for nanostructured C60 silica – based materials synthesis, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 10, pp. 2097-2105 (2010)