Nanometric TiO 2 as NBBs for functional organic-inorganic hybrids with efficient interfacial charge transfer

The purpose of this work is to establish a fabrication method for new electronic materials: organic-inorganic p-MAPTMS / titanium-oxo-alkoxy hybrids. The size-selected 5.2-nm TiO 2 nanoparticles (Nano Building Blocks-NBB) are generated in a sol-gel reactor with turbulent fluids micromixing. The surf...

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Bibliographic Details
Published in:Chemical engineering transactions 2011
Main Authors: Gorbovyi, P., Traoré, M., Chhor, K., Museur, Luc, Kuznetsov, A., Chichkov, B.N., Kanaev, A.V.
Format: Article
Language:English
Subjects:
Optics
Physics
Online Access:Get full text
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Summary:The purpose of this work is to establish a fabrication method for new electronic materials: organic-inorganic p-MAPTMS / titanium-oxo-alkoxy hybrids. The size-selected 5.2-nm TiO 2 nanoparticles (Nano Building Blocks-NBB) are generated in a sol-gel reactor with turbulent fluids micromixing. The surface exchange between propoxy and MAPTMS groups under vacuum pumping results in a stable nanoparticulate precursor available for 2-photon laser polymerisation. The hybrids demonstrate quantum yield of photoinduced charges separation 6 % and can steadily trap photoinduced electrons at number density of 6% Ti atoms. The materials are suitable for 3D-microstructuring.
ISSN:1974-9791
2283-9216
DOI:10.3303/CET1124033