368 citations · 816 across the 9 of their papers we have counts for
10 papers
In situ XRD Study of Strain Evolution in AlGaN/GaN HEMT at High Temperatures up to 1000 °C
Botong Li, Bobby G. Duersch, Hunter Ellis +6
The thermal stability and structural evolution of a GaN high-electron-mobility transistor (HEMT) heterostructure grown on a Si (111) substrate were investigated using in situ high-…
Carrier screening controls transport in conjugated polymers at high doping concentrations
Muhamed Duhandžić, Michael Lu-Dìaz, Subhayan Samanta +2
Transport properties of doped conjugated polymers (CPs) have been widely analyzed with the Gaussian Disorder Model (GDM) in conjunction with hopping transport between localized sta…
Machine learning enables robust prediction of thermal boundary conductance of 2D substrate interfaces
Cameron Foss, Zlatan Aksamija
Two-dimensional van der Waals (vdW) materials exhibit a broad palette of unique and superlative properties, including high electrical and thermal conductivities, paired with the ab…
Very High Thermoelectric Power Factor Near Magic Angle in Twisted Bilayer Graphene
Adithya Kommini, Zlatan Aksamija
Recent research on twisted bilayer graphene (TBG) uncovered that its twist-angle-dependent electronic structure leads to a host of unique properties, such as superconductivity, cor…
Electronic Transport and Thermopower in 2D and 3D Heterostructures--A Theory Perspective
Arnab K. Majee, Adithya Kommini, Zlatan Aksamija
In this review, we discuss the impact of interfaces and heterojuctions on the electronic and thermoelectric transport properties of materials. We review recent progress in understa…
Effects of Disorder on Thermoelectric Properties of Semiconducting Polymers
Meenakshi Upadhyaya, Connor J. Boyle, Dhandapani Venkataraman +1
Organic materials have attracted recent interest as thermoelectric (TE) converters due to their low cost and ease of fabrication. We examine the effects of disorder on the TE prope…
Non-diffusive Lattice Thermal Transport in Si-Ge Alloy Nanowires
M. Upadhyaya, Z. Aksamija
We present a calculation of the lattice thermal conductivity of Si-Ge nanowires (NWs), based on solving the Boltzmann transport equation by the Monte Carlo method of sampling the p…
Universal features of phonon transport in nanowires with correlated surface roughness
L. N. Maurer, Z. Aksamija, E. B. Ramayya +2
The ultralow thermal conductivity observed experimentally in intentionally roughened silicon nanowires (SiNWs) is reproduced in phonon Monte Carlo simulations with exponentiall…
Ballistic to diffusive crossover of heat flow in graphene ribbons
Myung-Ho Bae, Zuanyi Li, Zlatan Aksamija +5
Heat flow in nanomaterials is an important area of study, with both fundamental and technological implications. However, little is known about heat flow in two-dimensional (2D) dev…
Impact of Phonon Surface Roughness Scattering on Thermal Conductivity of Thin Si Nanowires
Pierre Martin, Zlatan Aksamija, Eric Pop +1
We present a novel approach for computing the surface roughness-limited thermal conductivity of silicon nanowires with diameter D < 100 nm. A frequency-dependent phonon scattering…