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Preparation of new photosensitive Nb2O5 gel films modified with benzoylacetone and properties of heat-treated films

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Abstract

In this study, in order to develop a new photosensitive gel film, Nb2O5 gel films including a chelate ring were prepared by the sol–gel method. Photosensitive and patterning properties of the gel films were investigated. Properties such as refractive index for annealed films were also evaluated. In the electronic absorption spectra of the gel films, the absorption peak assigned a chelate ring was observed at 353 nm, this peak intensity decreased by UV irradiation. From this result, the obtained gel films exhibit photosensitivity. Fine patterns (minimal width of about 2 μm) could be fabricated. It was found that the value of refractive index reaches a maximum of 2.25 for the film heat-treated at 800 °C.

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Authors and Affiliations

  1. Department of Applied Chemistry, Kinki University, 3-4-1, Kowakae, Higashi-Osaka, Osaka, 577-8502, Japan

    Naoki Noma & Mitsuki Hamano

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  1. Naoki Noma
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  2. Mitsuki Hamano
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Correspondence to Naoki Noma.

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Noma, N., Hamano, M. Preparation of new photosensitive Nb2O5 gel films modified with benzoylacetone and properties of heat-treated films. J Sol-Gel Sci Technol 64, 297–303 (2012). https://doi.org/10.1007/s10971-012-2857-9

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  • DOI: https://doi.org/10.1007/s10971-012-2857-9

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