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Vapor-Phase Functionalization of Nanostructured Gradient-Index Titanium Dioxide Thin Films

  • Andy C. van Popta (a1), John J. Steele (a2), Shufen Tsoi (a3), Enrico Fok (a4), Jonathan G. C. Veinot (a5), Michael J. Brett (a6) and Jeremy C. Sit (a7)...

Abstract

Chemical treatments, when applied to nanostructured oxide thin films, can be used to generate added functionality in many devices. In this study, a nanostructured defect-mode optical filter was prepared by glancing angle deposition of titanium dioxide and functionalized with 3,3,3-trifluoropropyl-trichlorosilane to render the thin film insensitive to variable humidity conditions. Electrical characterization and contact angle measurements demonstrate that the hydrophilic thin film becomes hydrophobic when functionalized, and transmission measurements clearly show that the wavelength shift of the defect-mode becomes strongly inhibited for a wide range of humidity levels.

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Keywords

Vapor-Phase Functionalization of Nanostructured Gradient-Index Titanium Dioxide Thin Films

  • Andy C. van Popta (a1), John J. Steele (a2), Shufen Tsoi (a3), Enrico Fok (a4), Jonathan G. C. Veinot (a5), Michael J. Brett (a6) and Jeremy C. Sit (a7)...

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