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16 December 1996 Fullerene derivatives embedded in sol-gel materials for optical limiting
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Abstract
Some recent results of a research work aimed at exploiting the potentialities of fullerene derivatives to obtain sol- gel glassy materials for use as optical limiters are reported. The solubility of fullerene derivatives in organic solvents compatible with the sol-gel process has been increased by more than two orders of magnitude by suitable functionalization of C60. Covalent linking to the glassy matrix is favored by introducing silicon alkoxide groups in the fullerenes. The optical limiting properties of these derivatives in toluene solution are comparable to those of the parent compound and exhibit enhancement in the red spectral range. Optical-quality films of various thickness are obtained by incorporating the C60 derivatives at high concentration in organically modified sol-gel matrices. These materials exhibit high resistance to laser damage and can be used to build multilayer structures optimized for optical limiting.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Raffaella Signorini, M. Zerbetto, Moreno Meneghetti, Renato Bozio, Michele Maggini, Gianfranco Scorrano, Maurizio Prato, Giovanna Brusatin, E. Menegazzo, and Massimo Guglielmi "Fullerene derivatives embedded in sol-gel materials for optical limiting", Proc. SPIE 2854, Fullerenes and Photonics III, (16 December 1996); https://doi.org/10.1117/12.262975
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