Premium
The Ultrahigh Quantum Thermal Conductance of Hydrogenated Boron Nanotubes
Author(s) -
He Jia,
Li Dengfeng,
Ying Yan,
Zhou Hangbo,
Zhou Ping,
Zhang Gang
Publication year - 2019
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201900122
Subject(s) - borophene , materials science , carbon nanotube , phonon , thermal conductivity , monolayer , boron , conductance , boron nitride , nanotube , condensed matter physics , nanotechnology , chemical physics , chemistry , composite material , physics , organic chemistry
Using first‐principles calculations and phonon dispersion analysis, the authors demonstrate theoretically that a hydrogenated monolayer borophene sheet can form a stable nanotube structure, denoted as H‐BNT. Combined with non‐equilibrium Green's function method, it is found that although thermal conductance of H‐BNT is lower than its carbon counterpart in the high‐temperature limit, at room temperature the phonon thermal conductance of H‐BNT is only slightly lower (2%) than carbon nanotube with the similar diameter. The high room temperature thermal conductance of boron nanotube is attributed to the light atomic mass of boron, strong interatomic force between boron atoms and high atomic density. Our studies shed light on the nature of quantum thermal transport in low‐dimensional materials, and can help in developing boron‐based nanoscale devices.