Exciton diffusion, end quenching, and exciton-exciton annihilation in individual air-suspended carbon nanotubes

Abstract

Luminescence properties of carbon nanotubes are strongly affected by exciton diffusion, which plays an important role in various nonradiative decay processes. Here we perform photoluminescence microscopy on hundreds of individual air-suspended carbon nanotubes to elucidate the interplay between exciton diffusion, end quenching, and exciton-exciton annihilation processes. A model derived from random-walk theory as well as Monte Carlo simulations are utilized to analyze nanotube length dependence and excitation power dependence of emission intensity. We have obtained the values of exciton diffusion length and absorption cross section for different chiralities, and diameter-dependent photoluminescence quantum yield have been observed. The simulations have also revealed the nature of a one-dimensional coalescence process, and an analytical expression for the power dependence of emission intensity is given.

11 pages, 6 figures

References in corpus (11)

• Exciton binding energies in carbon nanotubes from two-photon photoluminescence
• Stepwise Quenching of Exciton Fluorescence in Carbon Nanotubes by Single Molecule Reactions
• Photon Antibunching in the Photoluminescence Spectra of a Single Carbon Nanotube
• Ultralow mode-volume photonic crystal nanobeam cavities for high efficiency coupling to individual carbon nanotube emitters
• Exciton diffusion in air-suspended single-walled carbon nanotubes
• Nonlinear Photoluminescence Excitation Spectroscopy of Carbon Nanotubes: Exploring the Upper Density Limit of One-Dimensional Excitons
• Optical control of individual carbon nanotube light emitters by spectral double resonance in silicon microdisk resonators
• Existence of an upper limit on the density of excitons in carbon nanotubes by diffusion-limited exciton-exciton annihilation: Experiment and theory
• Exciton diffusion in semiconducting single-wall carbon nanotubes studied by transient absorption microscopy
• Stark effect of excitons in individual air-suspended carbon nanotubes
• Electronic and optical trends in carbon nanotubes under pure bending

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