Valentina Eremina will present her work entitled: “Optical and electronic properties of carbon nanotubes andlow-dimensional hybrid nanomaterials”

The properties of low-dimensional nanomaterials are governed by their structure, confinement, electronic environment, and interfacial interactions. Understanding how these factors shape material properties requires complementary structural, optical, and electronic characterization. This seminar will provide an overview of Valentina Eremina’s research on carbon nanotubes, halide perovskites, and 2D semiconductor heterostructures. Selected examples will illustrate how material structure, nanotube conductivity type, doping, nanoscale confinement, and hybrid interfaces influence light emission, excited-state dynamics, charge transport, and electronic response. The studies combine material preparation and functionalization with structural characterization, Raman spectroscopy, steady-state, time-resolved and ultrafast optical spectroscopy, THz spectroscopy and electrophysical measurements. The development of light-emitting perovskites confined in carbon nanotubes will also be discussed. The seminar will introduce a recently submitted MSCA PF proposal developed in collaboration with L2C. The project aims to investigate how the diameter, chirality, conductivity type, and Fermi-level position of an individual host nanotube affect the properties of a confined 1D perovskite and whether its radiative response and interfacial coupling can be tuned by modifying the electronic environment provided by the host nanotube.