37 citations · 81 across the 3 of their papers we have counts for
8 papers
The Effects of Electronic and Photonic Coupling on the Performance of a Photothermionic-Photovoltaic Hybrid Solar Device
Ehsanur Rahman, Alireza Nojeh
This work presents a detailed analysis of the photothermionic-photovoltaic hybrid solar device. The electrons in this hybrid device gain energy from both the solar photons and ther…
Nanotube heat conductors under tensile strain: Reducing the three-phonon scattering strength of acoustic phonons
Daniel Bruns, Alireza Nojeh, A. Srikantha Phani +1
Acoustic phonons play a special role in lattice heat transport, and confining these low-energy modes in low-dimensional materials may enable nontrivial transport phenomena. By appl…
Harvesting Solar Thermal Energy With a Micro-gap Thermionic-Thermoelectric Hybrid Energy Converter: Model Development, Energy Exchange Analysis, and Performance Optimization
Ehsanur Rahman, Alireza Nojeh
We present a comprehensive analysis of a dual, micro-gap thermionic-thermoelectric hybrid energy converter by developing a detailed theoretical model of the system. The Space-charg…
Interplay Between Near-Field Radiative Coupling and Space Charge Effects in a Micro gap Thermionic Energy Converter under Fixed Heat Input
Ehsanur Rahman, Alireza Nojeh
We investigate the performance of a micro gap vacuum thermionic energy converter considering the loss mechanisms due to the space charge effect and interelectrode radiative heat tr…
Reduced thermal conductivity in molecular forests
Aashish Bhardwaj, A. Srikantha Phani, Alireza Nojeh +1
Heat propagation in quasi-one dimensional materials (Q1DMs) often appears paradoxical. While an isolated Q1DM, such as a nanowire, carbon nanotube, or polymer, can exhibit a high t…
Heat transport in carbon nanotubes: Length dependence of phononic conductivity from the Boltzmann transport equation and molecular dynamics
Daniel Bruns, Alireza Nojeh, A. Srikantha Phani +1
In this article, we address lattice heat transport in single-walled carbon nanotubes (CNTs) by a quantum mechanical calculation of three-phonon scattering rates in the framework of…