Quantitative 2D fitting of fluorescence-excitation maps: excitation lineshape of single-wall carbon nanotubes.

ABSTRACT: Two-dimensional (2D) fluorescence-excitation (PLE) spectroscopy offers a powerful way to analyse samples of semiconducting single-wall carbon nanotubes (SWCNTs). The one-to-one correspondence between the SWCNT chiral structure and its optically excited states allows for the identification of individual species based on peaks in 2D PLE data. Changes in the position, width and other features of the lineshape associated with a given peak reveal a plethora of information about the associated SWCNT chirality and e.g. its interactions with the environment. Consistent and physically relevant quantification of that information requires accurate fitting of the 2D data, which has long been hindered by the fact that a sufficiently accurate functional form for the excitation profile of SWCNTs w

SUBMITTER: Cambre S 

PROVIDER: S-EPMC12487922 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature