Development of silicon nanoparticles for plasmonic sensing

Thomas Defforge; Arnaud Chaix; Benjamin Kalas; Miklos Fried; Peter Petrik; Gael Gautier

doi:10.1117/12.2609814

3 March 2022 Development of silicon nanoparticles for plasmonic sensing

Thomas Defforge, Arnaud Chaix, Benjamin Kalas, Miklos Fried, Peter Petrik, Gael Gautier

Proceedings Volume 11977, Colloidal Nanoparticles for Biomedical Applications XVII; 1197706 (2022) https://doi.org/10.1117/12.2609814
Event: SPIE BiOS, 2022, San Francisco, California, United States

Abstract

The performances of a porous silicon nanorods / gold nanoparticle combination for high sensitivity plasmonic sensing was assessed. First, an innovative synthesis technique was developed in a view to obtain porous silicon particles (nanorods due to their elongated shape) with homogeneous size and shape. The porous silicon nanorods were then spin coated on a glass substrate covered with gold nanoparticles. The combination of the high specific surface area porous silicon nanorods and the plasmonic effect of the Au nanoparticles was tested to form a highly sensitive ellipsometric sensing device. The porous silicon nanorods could be attached to both the plane Au surface and the Au nanoparticles with a specific spectral shift in the reflected polarized light.

Citation Download Citation

Thomas Defforge, Arnaud Chaix, Benjamin Kalas, Miklos Fried, Peter Petrik, and Gael Gautier "Development of silicon nanoparticles for plasmonic sensing", Proc. SPIE 11977, Colloidal Nanoparticles for Biomedical Applications XVII, 1197706 (3 March 2022); https://doi.org/10.1117/12.2609814

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