Directed growth of metal nanoparticles on substrates by polarized light irradiation

Masashi Watanabe, Satoshi Araki, Kenshi Hayashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Sensitivity of optical sensing can be enhanced using assistance of plasmon generated at metal nanostructures, like SERS-based sensing. The growth process of metal nanoparticles which can control both shape and orientation on substrates in one step is required to solve the problem of the arrangement of pre-synthesized metal nanorods or other nanostructures to the surface of substrates in specific orientation. In this study, the procedure of polarized-light-directed growth of metal nanoparticles fixed on glass substrates in direct way is proposed, in which the irradiation of linearly polarized light to pre-deposited gold seeds on substrate, in immersing the substrates in the growth solution containing metal cations (gold or silver ions) and reducing agents. Consequently the anisotropic nanostructures whose orientation angle was in accordance with polarization direction in growth process were obtained. The evaluation of the resulted structures was performed with UV-vis spectrometer and scanning electron microscope.

Original languageEnglish
Title of host publication2015 IEEE SENSORS - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479982028
DOIs
Publication statusPublished - Dec 31 2015
Event14th IEEE SENSORS - Busan, Korea, Republic of
Duration: Nov 1 2015Nov 4 2015

Publication series

Name2015 IEEE SENSORS - Proceedings

Other

Other14th IEEE SENSORS
CountryKorea, Republic of
CityBusan
Period11/1/1511/4/15

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Electronic, Optical and Magnetic Materials
  • Spectroscopy
  • Electrical and Electronic Engineering

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    Watanabe, M., Araki, S., & Hayashi, K. (2015). Directed growth of metal nanoparticles on substrates by polarized light irradiation. In 2015 IEEE SENSORS - Proceedings [7370643] (2015 IEEE SENSORS - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICSENS.2015.7370643