51 citations · 261 across the 23 of their papers we have counts for
9 papers · 1 filter
Inverse Design in Nanoscale Heat Transport via Interpolating Interfacial Phonon Transmission
Giuseppe Romano, Steven G. Johnson
We introduce a methodology for density-based topology optimization of non-Fourier thermal transport in nanostructures, based upon adjoint-based sensitivity analysis of the phonon B…
Quantum multifractality in thermal conduction across random interfaces
Taishan Zhu, Giuseppe Romano, Lina Yang +2
Self-affine morphology of random interfaces governs their functionalities across tribological, geological, (opto-)electrical and biological applications. However, the knowledge of…
Mitigating the Effect of Nanoscale Porosity on Thermoelectric Power Factor of Si
S. Aria Hosseini, Giuseppe Romano, P. Alex Greaney
The addition of porosity to thermoelectric materials can significantly increase the figure of merit, ZT, by reducing the thermal conductivity. Unfortunately, porosity is also detri…
Phonon Transport in Patterned Two-Dimensional Materials from First Principles
Giuseppe Romano
Phonon size effects induce ballistic transport in nanomaterials, challenging Fourier's law. Nondiffusive heat transport is captured by the Peierls-Boltzmann transport equation (BTE…
Thermal transport in nanoporous holey silicon membranes investigated with optically-induced transient thermal gratings
Ryan A. Duncan, Giuseppe Romano, Marianna Sledzinska +5
In this study, we use the transient thermal grating optical technique \textemdash a non-contact, laser-based thermal metrology technique with intrinsically high accuracy \textemdas…
High-Throughput Calculations of Thermal Conductivity in Nanoporous Materials: The Case of Half-Heusler Compounds
Giuseppe Romano, Jesús Carrete, Alexie M. Kolpak +1
Achieving low thermal conductivity and good electrical properties is a crucial condition for thermal energy harvesting materials. Nanostructuring offers a very powerful tool to add…
Single-molecule Electronics: Cooling Individual Vibrational Modes by the Tunneling Current
Jacob Lykkebo, Giuseppe Romano, Alessio Gagliardi +2
Electronic devices composed of single molecules constitute the ultimate limit in the continued downscaling of electronic components. A key challenge for single-molecule electronics…
Toward phonon-boundary engineering in nanoporous materials
Giuseppe Romano, Jeffrey C. Grossman
Tuning thermal transport in nanostructured materials is a powerful approach to develop high-efficiency thermoelectric materials. Using a recently developed approach based on the ph…
Multiscale Phonon Conduction in Nanostructured Materials Predicted by Bulk Thermal Conductivity Accumulation Function
Giuseppe Romano, Jeffrey C. Grossman
We develop a computational framework, based on the Boltzmann transport equation, with the ability to compute the thermal transport in nanostructured materials of any geometry using…