English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

It is often assumed that single-walled carbon nanotubes (SWNTs) grown via catalytic chemical vapor deposition (CVD) are free of defects, particularly when suspended over a trench. Here, we show that semiconducting nanotubes grown in this manner can contain a surprisingly large number of states within the band gap. High-resolution photocurrent spectroscopy is used to probe these states in individual nanotubes. We observe a series of band gap states in suspended nanotubes, resulting in long trapping and detrapping times. These states significantly alter the exciton spectra, resulting in a manifold of strongly localized exciton states with narrow line widths (<1 meV at room temperature) within a broader exciton envelope.

Spectroscopy of strongly localized excitons and band-gap states in semiconducting single-walled carbon nanotubes