Search Results - "Aksamija, Z."

Lattice thermal conductivity of graphene nanoribbons: Anisotropy and edge roughness scattering by Aksamija, Z., Knezevic, I.

“…We present a calculation of the thermal conductivity of graphene nanoribbons (GNRs), based on solving the Boltzmann transport equation with the full phonon…”
Get full text

Anisotropy and boundary scattering in the lattice thermal conductivity of silicon nanomembranes by Aksamija, Z., Knezevic, I.

Get full text

Universal features of phonon transport in nanowires with correlated surface roughness by Maurer, L. N., Aksamija, Z., Ramayya, E. B., Davoody, A. H., Knezevic, I.

“…The ultralow thermal conductivity, κ, observed experimentally in intentionally roughened silicon nanowires (SiNWs) is reproduced in phonon Monte Carlo…”
Get full text

Thermal Resistance of Transferred-Silicon-Nanomembrane Interfaces by Schroeder, D P, Aksamija, Z, Rath, A, Voyles, P M, Lagally, M G, Eriksson, M A

“…We report measurements of the interfacial thermal resistance between mechanically joined single crystals of silicon, the results of which are up to a factor of…”
Get full text

Quantitative determination of contributions to the thermoelectric power factor in Si nanostructures by Ryu, Hyuk Ju, Aksamija, Z, Paskiewicz, D M, Scott, S A, Lagally, M G, Knezevic, I, Eriksson, M A

“…We report thermoelectric measurements on a silicon nanoribbon in which an integrated gate provides strong carrier confinement and enables tunability of the…”
Get full text

Low-temperature enhancement of the thermoelectric Seebeck coefficient in gated 2D semiconductor nanomembranes by Kommini, A., Aksamija, Z.

“…An increasing need for effective thermal sensors, together with dwindling energy resources, have created renewed interests in thermoelectric (TE), or…”
Get full text

Anharmonic decay of g-process longitudinal optical phonons in silicon by Aksamija, Z., Ravaioli, U.

“…We study phonons produced by transitions between the equivalent X valleys in silicon. We use the Monte Carlo method first to select stochastically the time…”
Get full text

Lattice thermal transport in large-area polycrystalline graphene by Aksamija, Z., Knezevic, I.

“…We study lattice thermal transport in large-area polycrystalline graphene, such as the samples grown by chemical vapor deposition (CVD) of carbon on Cu. These…”
Get full text

Thermoelectric properties of silicon nanostructures by Aksamija, Z., Knezevic, I.

“…Semiconductor nanostructures are promising candidates for efficient thermoelectric energy conversion, with applications in solid-state refrigeration and power…”
Get full text

Characterization of self-heating in high-mobility Ge FinFET pMOS devices by Bury, E., Kaczer, B., Mitard, J., Collaert, N., Khatami, N. S., Aksamija, Z., Vasileska, D., Raleva, K., Witters, L., Hellings, G., Linten, D., Groeseneken, G., Thean, A.

“…Based on physically-extended methodology, measurements and simulations show that implementing high-mobility materials and particularly alloys, such as a SiGe…”
Get full text

Self-consistent thermal simulation of GaAs/Al0.45Ga0.55As quantum cascade lasers by Shi, Y. B., Aksamija, Z., Knezevic, I.

“…This paper presents a self-consistent thermal model for quantum cascade lasers (QCLs) that takes into account the nonuniform heat generation distribution in…”
Get full text

Thermal transport in graphene nanoribbons supported on SiO 2 by Aksamija, Z., Knezevic, I.

Get full text

Boundaries, interfaces, point defects, and strain as impediments to thermal transport in nanostructures by Mei, S., Foss, C. J., Maurer, L. N., Jonasson, O., Aksamija, Z., Knezevic, I.

“…The ability to grow heterostructures with high-quality interfaces brings great flexibility to the design and development of modern electronic and…”
Get full text

Thermal modeling of nanodevices by Vasileska, D, Raleva, K, Goodnick, S M, Aksamija, Z, Knezevic, I

“…In this paper we summarize 6 years of work on modeling self-heating effects in nano-scale devices at Arizona State University (ASU). We first describe the key…”
Get full text

Thermal conductivity of Si sub(1-x) Ge sub(x)/Si sub(1-y) Ge sub(y) superlattices: Competition between interfacial and internal scattering by Aksamija, Z, Knezevic, I

“…We investigate thermal transport in Si/Ge and Si sub(1-x) Ge sub(x)/Si sub(1-y) Ge sub(y) alloy superlattices based on solving the single-mode phonon Boltzmann…”
Get full text

Thermal conductivity of Si 1 − x Ge x /Si 1 − y Ge y superlattices: Competition between interfacial and internal scattering by Aksamija, Z., Knezevic, I.

Get full text

Thermal transport in graphene nanoribbons supported on SiO sub(2) by Aksamija, Z, Knezevic, I

“…We present a theoretical model for thermal transport in graphene nanoribbons (GNRs) on SiO sub(2) based on solving the phonon Boltzmann transport equation…”
Get full text

Improving the Thermoelectric Power Factor in 2D Single-Layer MoS2 Using Periodic Potentials by Kommini, A., Aksamija, Z.

“…Thermoelectric (TE) devices enable robust solid-state conversion of waste heat to electricity but their applications are still limited by relatively modest…”
Get full text

Full band Monte Carlo simulation of phonon transport in semiconductor nanostructures by Aksamija, Z.

“…In this paper, a numerical simulation of thermal transport at the nanoscale is developed by solving the phonon Boltzmann transport equation by the Monte Carlo…”
Get full text

Non-diffusive Lattice Thermal Transport in Si-Ge Alloy Nanowires by Upadhyaya, M, Aksamija, Z

“…Phys. Rev. B 94, 174303 (2016) We present a calculation of the lattice thermal conductivity of Si-Ge nanowires (NWs), based on solving the Boltzmann transport…”
Get full text