1. Plasmonic mid-IR gas sensing using graphene and related materials
- Author
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Rose Alani, Irene Dolado, Valerio Pruneri, Bruno Paulillo, Nestor Jr. Bareza, Kavitha K. Gopalan, Rainer Hillenbrand, and Marta Autore
- Subjects
Nanostructure ,Materials science ,Graphene ,law ,Doping ,Molecule ,Nanotechnology ,Graphene plasmonics ,Biosensor ,Plasmon ,Graphene nanoribbons ,law.invention - Abstract
In the talk, we will present our recent work on mid-IR gas sensing using highly confined surface modes in graphene and hBN nanoresonators. We have used ultrathin functional coatings to selectively concentrate the target gas molecules in proximity of the 2D nanostructures, just like recognition elements are used in biosensors. As a proof of concept we have demonstrated CO2 sensing using graphene nanoribbons coated with a 10nm polyethylenimine chemisorber. We will discuss the different sensing mechanisms that can be leveraged (e.g. plasmon tuning via polymer-induced chemical doping) and the possibility to extend this platform to other 2D materials like hBN.
- Published
- 2021
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