40 citations · 127 across the 11 of their papers we have counts for
11 papers
A first-principles approach for predicting infrared optical properties of solids
Sreerag Sundaram, Ziqi Guo, Dudong Feng +2
We present a simplified formalism for predicting infrared optical constants from first-principles calculations. Addressing limitations of the widely used four-parameter semi-quantu…
A Review of AI-Driven Approaches for Nanoscale Heat Conduction and Radiation
Ziqi Guo, Daniel Carne, Krutarth Khot +3
Heat conduction and radiation are two of the three fundamental modes of heat transfer, playing a critical role in a wide range of scientific and engineering applications ranging fr…
FOS: A fully integrated open-source program for Fast Optical Spectrum calculations of nanoparticle media
Daniel Carne, Joseph Peoples, Ziqi Guo +4
FOS, which means light in Greek, is an open-source program for Fast Optical Spectrum calculations of nanoparticle media. This program takes the material properties and a descriptio…
Sampling-accelerated First-principles Prediction of Phonon Scattering Rates for Converged Thermal Conductivity and Radiative Properties
Ziqi Guo, Zherui Han, Dudong Feng +2
First-principles prediction of thermal conductivity and radiative properties is crucial. However, computing phonon scattering, especially for four-phonon scattering, could be prohi…
Four phonon-dominated near-field radiation in weakly anharmonic polar materials
Dudong Feng, Xiaolong Yang, Zherui Han +1
Inelastic scattering processes typically introduce friction among carriers and reduce the transport properties of photons, phonons, and electrons. However, we predict that in contr…
Negative differential thermal conductance between Weyl semimetals nanoparticles through vacuum
Yasong Sun, Yang Hu, Kezhang Shi +3
In this work, the near-field radiative heat transfer (NFRHT) between two Weyl semimetal (WSM) nanoparticles (NPs) is investigated. The numerical results show that negative differen…
Spatial and doping effects on radiative recombination in thin-film near-field photonic energy converters
Dudong Feng, Shannon K. Yee, Zhuomin M. Zhang
Modeling radiative recombination is crucial to the analysis of photonic energy converters. In this work, a local radiative recombination coefficient is defined and derived based on…
A Novel Near-field Photonic Thermal Diode with hBN and InSb
Dudong Feng, Shannon K. Yee, Zhuomin M. Zhang
Similar to the diode in electronics, a thermal diode is a two-terminal device that allows heat to transfer easier in one direction (forward bias) than in the opposite direction (re…
Improved performance of a near-field thermophotovoltaic system by a back gapped reflector
Dudong Feng, Shannon K. Yee, Zhuomin M. Zhang
Various spectral control techniques can be applied to improve the performance of a thermophotovoltaic (TPV) system. For example, a back surface reflector (BSR) can improve the perf…
Spatial profiles of photon chemical potential in near-field thermophotovoltaic cells
Dudong Feng, Eric J. Tervo, Dragica Vasileska +3
Emitted photons stemming from the radiative recombination of electron-hole pairs carry chemical potential in radiative energy converters. This luminescent effect can substantially…
Coupled Charge and Radiation Transport Processes in Thermophotovoltaic and Thermoradiative Cells
William A. Callahan, Dudong Feng, Zhuomin M. Zhang +3
Accurate modeling of charge transport and both thermal and luminescent radiation is crucial to the understanding and design of radiative thermal energy converters. Charge carrier d…