Physica Scripta Inclusive Publishing Trusted Science logo. Purpose-Led Publishing logo. ACCEPTED MANUSCRIPT GUP-Modified Thermionic Emission from Individual Carbon Nanotubes M. Mohammadi Sabet and R Gholami Accepted Manuscript online 10 August 2026 • © 2026 IOP Publishing Ltd. All rights, including for text and data mining, AI training, and similar technologies, are reserved. What is an Accepted Manuscript? DOI 10.1088/1402-4896/ae97c0 PDF Opens in a new tab. Submit Submit to this Journal Permissions Get permission to re-use this article Share this article Abstract This study investigates thermionic emission from individual carbon nanotubes (CNTs) using the Generalized Uncertainty Principle (GUP) framework. The conventional Richardson-Dushman law, derived from the three-dimensional free-electron model, shows significant deviations when applied to low-dimensional nanostructures. We modified the density of states based on the linear dispersion relation of CNTs and incorporated GUP corrections to account for nanoscale effects originating from the discrete atomic lattice and cylindrical geometry. The temperature dependence of the work function was also included.
The model yields reasonable agreement with experimental data from individual carbon nanotubes. These results suggest that GUP-based corrections offer a useful phenomenological approach to describe deviations in quasi-one-dimensional carbon nanostructures.
