A study, carried out by Prof. Carlo S. Casari of the Department of Energy at the Politecnico di Milano and the EspLORE project team in collaboration with Professors Chiara Castiglioni and Matteo M. S. Tommasini (FunMat Lab) of the Department of Chemistry, Materials and Chemical Engineering "Giulio Natta" and Barbara Rossi of the “Elettra” Synchrotron in Trieste, were published in the prestigious international scientific journal «Nature Communications». 

As part of the European EspLORE project, coordinated by Prof. Casari, research was carried out into the response of carbon chains to a particular UV light excitation, a type of light that these materials readily absorb. The vibrational response of the carbon chains and the influence that UV light had on their electronic properties was investigated using the IUVS Synchrotron Light Line equipment at the “Elettra” Synchrotron in Trieste.

Linear carbon atomic wires are one-dimensional carbon-based systems that are a subject of great interest, due to their special thermal, optical, electronic and mechanical properties, and therefore their possible applications in various fields.

«The uniqueness of these carbon atomic wires and of the investigation technique used has allowed us to better understand their fundamental properties, providing a strong basis for their future applications in various fields» says Casari.

«The structural simplicity of these atomic wires allows for an elegant and rigorous verification of one of the fundamental theories of resonant Raman spectroscopy, here applied for the first time to transitions involving multiple vibrational quanta» comment Matteo Tommasini and Chiara Castiglioni.

Electron-phonon coupling and vibrational properties of size-selected linear carbon chains by resonance Raman scattering

P. Marabotti, M. Tommasini, C. Castiglioni, P. Serafini, S. Peggiani, M. Tortora, B. Rossi, A. Li Bassi, V. Russo & C. S. Casari
«Nature Communications» volume 13, Article number: 5052 (2022)

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Politecnico di Milano, continua lo studio sui fili atomici lineari di carbonio
Ilprogettistaindustriale.it - 29 settembre 2022