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Nano-Patterning of a TiO2-Organic Hybrid Material Assisted by a Localized Surface Plasmon

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Abstract:

Nanopatterns of a TiO2-organic hybrid material have been fabricated with the use of a localized surface plasmon (LSP). The TiO2-organic hybrid material was prepared by the sol–gel method and was coated on a glass substrate with gold nanoblocks. After the hybrid films were irradiated with a femtosecond laser, the unreacted parts were removed, leaving the TiO2-organic hybrid materials around the nanoblocks. In the nanopatterns of the TiO2-organic hybrid materials, the transition absorption band of the chelate compound formed between Ti-alkoxide and -diketone was excited by the two-photon absorption induced by the LSP of gold nanoblocks, and the chelate compound was decomposed and dissolved in alcohol. It was confirmed that the hybrid material changed to anatase upon sintering above 450°C.

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/j.1551-2916.2010.03645.x

Affiliations: 1: National Institute for Materials Science, Ibaraki 305-0044, Japan 2: Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0021, Japan 3: Department of Chemistry and Materials Science, Tokyo Institute of Technology, Tokyo 152-8550, Japan

Publication date: June 1, 2010

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