Light-transmittable Ultrasmooth Gold Film for Gap-mode Tip-enhanced Raman Scattering Spectroscopy
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We report light-transmittable ultrasmooth gold film enabling gap-mode tip-enhanced Raman scattering (TERS) spectroscopy measurements with extremely low background signals. An ultrasmooth Au substrate was fabricated by introducing a wetting layer of germanium (Ge). We also found that high mechanical and chemical stability of the substrate along with flexibility in chemical modification provides versatile platforms for gap-mode TERS measurements in various environments, such as air, water, and organic solvents.
- Chemistry Letters
Chemistry Letters 43(6), 808-810, 2014
The Chemical Society of Japan