Organic molecular tuning of many-body interaction energies in air-suspended carbon nanotubes

Abstract

We investigate adsorption effects of copper phthalocyanine molecules on excitons and trions in air-suspended carbon nanotubes. Using photoluminescence excitation spectroscopy, we observe that exciton energy redshifts gradually with the molecular deposition thickness. The trion emission is also observed at large deposition amounts, which indicates charge transfer between the phthalocyanine molecules and carbon nanotubes. Analysis of the spectra for individual tubes reveal a correlation between the exciton-trion energy separation and the exciton emission energy, showing that the many-body interaction energies scale similarly with the molecular dielectric screening.

6 pages, 5 figures

References in corpus (2)

• Exciton diffusion, end quenching, and exciton-exciton annihilation in individual air-suspended carbon nanotubes
• Gate-controlled generation of optical pulse trains using individual carbon nanotubes

Cited by in corpus (6)

• Charge transport in semiconducting carbon nanotube networks
• Nanotube-based one-dimensional heterostructures coupled by van der Waals forces
• Impact of Dielectric Environment on Trion Emission from Single-Walled Carbon Nanotube Networks
• Quantum emission assisted by energy landscape modification in pentacene-decorated carbon nanotubes
• Trion emission from frozen p-n junctions in networks of electrolyte-gated (6,5) single-walled carbon nanotubes
• Trion transfer in mixed-dimensional heterostructures