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

Sergey Redko; Alexey Dolgiy; Dmitri Zhigulin; Victor Kholyavo; Nadia Khinevich; Siargei Zavatski; Hanna Bandarenka

doi:10.1117/12.2511299

26 February 2019 Fabrication and simulation of silver nanostructures on different types of porous silicon for surface enhanced Raman spectroscopy

Sergey Redko , Alexey Dolgiy, Dmitri Zhigulin, Victor Kholyavo, Nadia Khinevich, Siargei Zavatski, Hanna Bandarenka

Author Affiliations +

Proceedings Volume 10912, Physics and Simulation of Optoelectronic Devices XXVII; 109121O (2019) https://doi.org/10.1117/12.2511299
Event: SPIE OPTO, 2019, San Francisco, California, United States

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.

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Sergey Redko , Alexey Dolgiy, Dmitri Zhigulin, Victor Kholyavo, Nadia Khinevich, Siargei Zavatski, and Hanna Bandarenka "Fabrication and simulation of silver nanostructures on different types of porous silicon for surface enhanced Raman spectroscopy", Proc. SPIE 10912, Physics and Simulation of Optoelectronic Devices XXVII, 109121O (26 February 2019); https://doi.org/10.1117/12.2511299

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