Surface-enhanced Raman scattering on diatom biosilica photonic crystals

Fanghui Ren; Jeremy Campbell; Dihan Hasan; Xiangyu Wang; Gregory L. Rorrer; Alan X. Wang

doi:10.1117/12.2009375

12 April 2013 Surface-enhanced Raman scattering on diatom biosilica photonic crystals

Fanghui Ren, Jeremy Campbell, Dihan Hasan, Xiangyu Wang, Gregory L. Rorrer, Alan X. Wang

Author Affiliations +

Proceedings Volume 8598, Bioinspired, Biointegrated, Bioengineered Photonic Devices; 85980N (2013) https://doi.org/10.1117/12.2009375
Event: SPIE BiOS, 2013, San Francisco, California, United States

Abstract

Diatoms are a group of single-celled photosynthetic algae that make skeletal shells of hydrated amorphous silica, called frustules, which possess hierarchical nanoscale photonic crystal features made by a bottom-up approach at ambient temperature and pressure. In this paper, we theoretically investigate electric field enhancements of plasmonic nanoparticles coated on the surface of diatom skeletal shells. Surface-Enhanced Raman Scattering substrates are prepared by evaporating 10 nm thick silver film and self-assembling silver nanoparticles on diatom surfaces, which show significantly better SERS signals than silver nanoparticles on flat glass substrates.

Citation Download Citation

Fanghui Ren, Fanghui Ren, Jeremy Campbell, Jeremy Campbell, Dihan Hasan, Dihan Hasan, Xiangyu Wang, Xiangyu Wang, Gregory L. Rorrer, Gregory L. Rorrer, Alan X. Wang, Alan X. Wang, "Surface-enhanced Raman scattering on diatom biosilica photonic crystals", Proc. SPIE 8598, Bioinspired, Biointegrated, Bioengineered Photonic Devices, 85980N (12 April 2013); doi: 10.1117/12.2009375; https://doi.org/10.1117/12.2009375

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