Circular Dichroism Reflectance Anisotropy of Chiral Atomically Thin Films.

Autor: Tomei, Ilaria, Pierucci, Filippo, Bonanni, Beatrice, Sgarlata, Anna, Fanfoni, Massimo, Yang, Seong-Jun, Kim, Cheol-Joo, Goletti, Claudio
Předmět:
Zdroj: Chemosensors; Sep2024, Vol. 12 Issue 9, p170, 9p
Abstrakt: Recently, a technical modification of a Reflectance Anisotropy Spectroscopy (RAS) spectrometer has been proposed to investigate the circular dichroism (CD) of samples instead of the normally studied linear dichroism. CD-RAS measures the anisotropy of the optical properties of a sample under right-handed and left-handed circularly polarized light. Here, we present the application of CD-RAS to measure the circular dichroism of a twisted bilayer of graphene, purposely prepared as a possible substrate for the adsorption of thin molecular layers, in air, in liquid or in a vacuum. This result demonstrates the performance of the apparatus and shows interesting perspectives for the investigation of chiral organic assemblies deposited in solid film. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index