Boosting electronic transport in carbon nanotubes by isotopic disorder.
Reads0
Chats0
TLDR
It is shown that it is possible to improve the electrical performances of metallic CNTs by 13C isotope enrichment, and isotopic disorder creates additional channels for the hot-phonon deexcitation, reduces their population and, thus, the nanotube high-bias differential resistance.Abstract:
The current-voltage curve of metallic carbon nanotubes (CNTs) displays at high bias a sudden increase of the resistivity due to the scattering of electrons with phonons having an anomalously high population (hot phonons). Here, we show that it is possible to improve the electrical performances of metallic CNTs by 13C isotope enrichment. In fact, isotopic disorder creates additional channels for the hot-phonon deexcitation, reduces their population and, thus, the nanotube high-bias differential resistance. This is an extraordinary case where disorder improves the electronic transport.read more
Citations
More filters
Journal ArticleDOI
Ultraviolet-laser atom-probe tomographic three-dimensional atom-by-atom mapping of isotopically modulated Si nanoscopic layers
TL;DR: Using ultraviolet-laser assisted local electrode atom-probe (UV-LEAP) tomography, this paper obtained three-dimensional (3D) atom-by-atom images of isotopically modulated S28i and S30i ultrathin layers having thicknesses in the range of 5-30 nm.
Journal ArticleDOI
From thermoelectricity to phonoelectricity
Corey Melnick,Massoud Kaviany +1 more
TL;DR: In this article, a review of the history and progress of solid-state heat harvesting is presented, focusing on phonovoltaic materials, the electron-phonon coupling, and entropy production in a phonovolastic cell.
Journal ArticleDOI
Thermal transport in isotopically disordered carbon nanotubes: a comparison between Green’s functions and Boltzmann approaches
TL;DR: The behaviour of the thermal conductivity as a function of the system length is investigated, using Green's function techniques to compute the transmission across the system, and there is good agreement between both approaches for systems of experimental sizes, even in the presence of Anderson localization.
Dissertation
The Phonovoltaic Cell: Harvesting Optical Phonons in Order to Approach the Carnot Limit
TL;DR: The Phonovoltaic cell: Harvesting Optical Phonons in Order to Approach the Carnot Limit as mentioned in this paper was the first attempt to harvest optical phonons in the cell.
Journal ArticleDOI
Infrared photoreaction of 2-chloroethyltrifluorosilane
TL;DR: In this paper, the infrared laser dissociation of 2-chloroethyltrifluorosilane has been studied in light of silicon isotopes separation, and the reaction occurs via beta-elimination mechanism to yield ethylene and chlorotrifluorosi- lane as products.