Optical Characterization of Gold Nanoparticle Layers Formed on Plastic Microbeads

DOI PDF Web Site Web Site Web Site View 1 Remaining Hide 5 Citations 20 References Open Access

Search this article

Abstract

Generally, the characterization of a metal layer formed on a planar substrate has been achieved using scanning electron microscopy and transmission electron microscopy. These techniques provide details of the surface and/or the cross-section of a planar structure with high resolution. However, the evaluation of sphere-like structures is troublesome owing to the necessity to observe a sample from various angles and/or to calculate the yield from many values obtained for many samples, since the conventional methods can observe a sample only from one direction. We have developed a simple evaluation method for a thin metal layer on plastic microbeads based on its light-scattering properties using dark-field microscopy coupled with a spectrometer. The light-scattering intensity of gold-nanoparticle-coated microbeads depends significantly on the gold coverage. We believe that our study is significant because it describes the development and evaluation of the surface coverage of a thin metal layer on a sphere-like microstructure.

Journal

  • Analytical Sciences

    Analytical Sciences 32 (3), 281-285, 2016

    The Japan Society for Analytical Chemistry

Citations (5)*help

See more

References(20)*help

See more

Related Projects

See more

Keywords

Details 詳細情報について

Report a problem

Back to top