51 citations · 261 across the 23 of their papers we have counts for
12 papers · 1 filter
Reduced-Order Model to Predict Thermal Conductivity of Dimensionally-Confined Materials
S. Aria Hosseini, Alex Greaney, Giuseppe Romano
Predicting nanoscale thermal transport in dielectrics requires models, such as the Boltzmann transport equation (BTE), that account for phonon boundary scattering in structures wit…
Mode- and Space- Resolved Thermal Transport of Alloy Nanostructures
S. Aria Hosseini, Sarah Khanniche, G. Jeffrey Snyder +3
Nanostructured semiconducting alloys obtain ultra-low thermal conductivity as a result of the scattering of phonons with a wide range of mean-free-paths (MFPs). In these materials,…
OpenBTE: a Solver for ab-initio Phonon Transport in Multidimensional Structures
Giuseppe Romano
Controlling heat flow at the nanoscales is pivotal to several applications, including thermal energy harvesting and heat management. However, engineering nanostructures is challeng…
Efficient calculations of the Mode-Resolved ab-initio thermal Conductivity in nanostructures
Giuseppe Romano
First-principles calculations of thermal transport in homogeneous materials have reached remarkable predicting power. Modeling deterministically phonon transport in nanostructures,…
Universal Effective Medium Theory to Predict the Thermal Conductivity in Nanostructured Materials
S. Aria Hosseini, Sarah Khanniche, P. Alex Greaney +1
Nanostructured materials enable high thermal transport tunability, holding promises for thermal management and heat harvesting applications. Predicting the effect that nanostructur…
Enhanced Thermoelectric Performance of Polycrystalline Si0.8Ge0.2 Alloys through the Addition of Nanoscale Porosity
Hosseini, S. Aria, Romano +3
Engineering materials to include nanoscale porosity or other nanoscale structures has become a well-established strategy for enhancing the thermoelectric performance of dielectrics…
Diffusive Phonons in Nongray Nanostructures
Giuseppe Romano, Alexie M. Kolpak
Nanostructured semiconducting materials are promising candidates for thermoelectrics due to their potential to suppress phonon transport while preserving electrical properties. Mod…
Phonon Bottleneck Identification in Disordered Nanoporous Materials
Giuseppe Romano, Jeffrey C. Grossman
Nanoporous materials are a promising platform for thermoelectrics in that they offer high thermal conductivity tunability while preserving good electrical properties, a crucial req…
Thermal Anisotropy Enhanced by Phonon Size Effects in Nanoporous Materials
Giuseppe Romano, Alexie M. Kolpak
While thermal anisotropicity is a desirable materials property for many applications, including transverse thermoelectrics and thermal management in electronic devices, it remains…
Directional Phonon Suppression Function as a Tool for the Identification of Ultralow Thermal Conductivity Materials
Giuseppe Romano, Alexie M. Kolpak
Boundary-engineering in nanostructures has the potential to dramatically impact the development of materials for high-efficiency conversion of thermal energy directly into electric…
Simulating nanoscale heat transport
Giuseppe Romano, Jean-Philippe Peraud, Jeffrey C. Grossman
In this book chapter we provide the definition of "Simulating Nanoscale Heat Transport", broadly regarded as modeling heat conduction beyond Fourier's law. We primarely focus on in…
Temperature-dependent thermal conductivity in nanoporous materials studied by the Boltzmann Transport Equation
Giuseppe Romano, Keivan Esfarjani, David A. Strubbe +2
Nanostructured materials exhibit low thermal conductivity because of the additional scattering due to phonon-boundary interactions. As these interactions are highly sensitive to th…