Screening of Excitons in Single, Suspended Carbon Nanotubes

Abstract

Resonant Raman spectroscopy of single carbon nanotubes suspended across trenches displays red shifts of up to 30 meV of the electronic transition energies as a function of the surrounding dielectric environment. We develop a simple scaling relationship between the exciton binding energy and the external dielectric function and thus quantify the effect of screening. Our results imply that the underlying particle interaction energies change by hundreds of meV.

Accepted to Nano Letters 5 Pages, 3 Figures, 2 Tables

References in corpus (11)

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Cited by in corpus (8)

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• Probing the influence of dielectric environment on excitons in monolayer WSe2: Insight from high magnetic fields
• How does the substrate affect the Raman and excited state spectra of a carbon nanotube?
• Moiré-induced Vibrational Coupling in Double Walled Carbon Nanotubes
• Tunable electronic correlation effects in nanotube-light interactions
• Scaling of exciton binding energy with external dielectric function in carbon nanotubes
• Organic molecular tuning of many-body interaction energies in air-suspended carbon nanotubes
• Electronic Raman Scattering in Suspended Semiconducting Carbon Nanotubes