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Title: Transparent nanohybrids of nanocrystalline TiO2 in PMMA with unique nonlinear optical behavior
Authors: Yuwono, A.H. 
Xue, J. 
Wang, J. 
Elim, H.I. 
Ji, W. 
Li, Y.
White, T.J.
Issue Date: 1-Jun-2003
Citation: Yuwono, A.H., Xue, J., Wang, J., Elim, H.I., Ji, W., Li, Y., White, T.J. (2003-06-01). Transparent nanohybrids of nanocrystalline TiO2 in PMMA with unique nonlinear optical behavior. Journal of Materials Chemistry 13 (6) : 1475-1479. ScholarBank@NUS Repository.
Abstract: PMMA is one of the most versatile polymeric materials for applications in various technological areas including optics and electro-optics. While the current applications of PMMA in optics and electro-optics are limited by their linear optical behavior, we report here in this paper the unique nonlinear optical behavior of nanohybrids consisting of nanocrystalline TiO2 in PMMA. Transparent thin films of TiO2-PMMA nanohybrid on substrates were synthesized by in-situ sol-gel and polymerisation, assisted by spin coating. Using titanium isoproproxide (Ti-iP) as the starting material for nanocrystalline titania, together with methyl methacrylate and 3-(trimethoxysilyl)propyl methacrylate, nanohybrids containing up to 80% Ti-iP in PMMA were successfully realized. The resulting nanohybrid thin films coated on quartz substrates are optically transparent and demonstrate large nonlinear optical behavior, with an ultrafast response of
Source Title: Journal of Materials Chemistry
ISSN: 09599428
DOI: 10.1039/b211976e
Appears in Collections:Staff Publications

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