Photocatalytic deposition of a gold nanoparticle onto the top of a SiN cantilever tip

• Published in: Journal of microscopy (Oxford) Vol. 202; no. 1; pp. 100 - 103
• Main Authors: Okamoto, T., Yamaguchi, I.
• Format: Journal Article
• Language: English
• Published: Oxford, UK Blackwell Science Ltd 01.04.2001
• Subjects: Evanescent wave; field enhancement; gold particle; near‐field optical microscopy; photocatalytic effect; photochemical deposition; surface plasmon resonance; titanium dioxide

We propose a new technique for depositing a gold nanoparticle onto the tip of a dielectric support. We employed the photocatalytic effect of titanium dioxide for the deposition. When the titanium dioxide immersed in a solution including gold ions is subject to optical exposure, the excited electrons...