Measuring the Electronic Bandgap of Carbon Nanotube Networks in Non-Ideal p-n Diodes.

ABSTRACT: The measurement of the electronic bandgap and exciton binding energy in quasi-one-dimensional materials such as carbon nanotubes is challenging due to many-body effects and strong electron-electron interactions. Unlike bulk semiconductors, where the electronic bandgap is well known, the optical resonance in low-dimensional semiconductors is dominated by excitons, making their electronic bandgap more difficult to measure. In this work, we measure the electronic bandgap of networks of polymer-wrapped semiconducting single-walled carbon nanotubes (s-SWCNTs) using non-ideal p-n diodes. We show that our s-SWCNT networks have a short minority carrier lifetime due to the presence of interface trap states, making the diodes non-ideal. We use the generation and recombination leakage currents

SUBMITTER: Oyibo G 

PROVIDER: S-EPMC11312849 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature