Nanostructures and Optics – Nanosensing

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  • Permanent members: Catherine Schwob, Yoann Prado
  • Scientific visitor: Mazen Erfan

The group has a large expertise in the design of photonic nanostructures, such as opals, and in their coupling to stimuli-responsive polymers to perform optical sensing of nanoparticles [1-2].

In collaboration with the group of T. Bourouina of ESIEE-ESYCOM, we are now working on black silicon, as this material present unique optical properties. Indeed, due to its random nano-micro-structuration (Fig1), black silicon is a perfect absorber. It reflects almost no light in the visible range (Fig2) and consequently it looks totally black to naked eye.

The infiltration of a black silicon sample with a polymer sensitive to temperature, pH, nanoparticles… should change its optical properties thanks to the presence of the external stimulus.

We plan to design very sensitive, versatile, easy to use and cost-efficient sensors.

Figure 1: SEM image of the surface of black silicone.

Figure 2: Specular reflection spectra at 45° incidence angle at different positions on a black silicon sample.



[1] S. Gam-Derrouich, C. Bourdillon, Daney de Marcillac Willy, Laurent Coolen, Agnès Maître, et al.. Quantum dot-imprinted polymers with size and shell-selective recognition properties. Chemical Communications, Royal Society of Chemistry, 2015, 51, pp.14933-14936. ⟨10.1039/C5CC05203C⟩. ⟨hal-01203480⟩

[2] Sarra Gam-Derouich, Céline Bourdillon, Soraya Lakhdar chaouche, Laurent Coolen, Agnès Maître, et al.. Imprinted Photonic Hydrogels for the Size- and Shell-Selective Recognition of Nanoparticles. Angewandte Chemie International Edition, Wiley-VCH Verlag, 2017, 56 (33), pp.9710 – 9714. ⟨10.1002/anie.201702540⟩. ⟨hal-01630911⟩