Fabrication and simulation of silver nanostructures on different types of porous silicon for surface enhanced Raman spectroscopy

Redko, Sergey, Dolgiy, Alexey, Zhygulin, Dmitri, Khaliava, Viktar, Khinevich, Nadia, Zavatski, Siargei, Bandarenka, Hanna ORCID: https://orcid.org/0000-0003-4254-8261, Osi?ski, Marek, Arakawa, Yasuhiko and Witzigmann, Bernd 2019. Fabrication and simulation of silver nanostructures on different types of porous silicon for surface enhanced Raman spectroscopy. Presented at: SPIE OPTO, 2019, San Francisco, California, 2-7 February 2019. Published in: Witzigmann, Bernd, Osiński, Marek and Arakawa, Yasuhiko eds. Physics and Simulation of Optoelectronic Devices XXVII. Proc. SPIE , vol.109121 SPIE, 10.1117/12.2511299

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Abstract

In this paper, we propose a systematic approach to controllably fabricate silver nanoparticles, dendrites and nanovoids on porous template based on silicon and two-step wet process. Geometry of metallic structures was managed by variation of dopant type of silicon, regimes of template formation and deposition of silver. General models of each structure were developed and studied for distribution and strength of electric field arising in them under 473, 633 and 785 nm lasers. Simulation results revealed reasons of variable activity of fabricated structures in surface enhanced Raman spectroscopy, which allowed to define optimal conditions of analysis of target molecules.

Item Type:	Conference or Workshop Item - published (Paper)
Date Type:	Published Online
Status:	Published
Schools:	Schools > Physics and Astronomy
Publisher:	SPIE
Last Modified:	07 Sep 2026 21:54
URI:	https://orca.cardiff.ac.uk/id/eprint/188561

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