Azide modification forming luminescent sp2 defects on single-walled carbon nanotubes for near-infrared defect photoluminescence

TL;DR

This paper reports the creation of luminescent sp2 defects on single-walled carbon nanotubes via azide functionalization, enabling near-infrared photoluminescence and exciton property modulation for nanomaterial engineering.

Contribution

It introduces a novel azide-based method to form sp2 defects on carbon nanotubes that produce near-infrared luminescence, advancing defect engineering techniques.

Findings

Luminescent defects emit at 1116 nm in the near-infrared.

Defect sites induce exciton localization, altering exciton properties.

The method enables exciton-engineered nanomaterials with tailored optical features.

Abstract

Azide functionalization produced luminescent sp2-type defects on single-walled carbon nanotubes, by which defect photoluminescence appeared in near infrared regions (1116 nm). Changes in exciton properties were induced by localization effects at the defect sites, creating exciton-engineered nanomaterials based on the defect structure design.