67 citations · 153 across the 13 of their papers we have counts for
8 papers · 1 filter
Bidirectional Learning of Relationships between Atomic Environments and Electronic Band Dispersion in Semiconductor Heterostructures
Artem K Pimachev, Sanghamitra Neogi
Atomic-scale variations in semiconductor heterostructures, arising from strain, interfaces, and compositional modulation, strongly influence electronic band dispersion but remain d…
Effect of Electron-Phonon and Electron-Impurity Scattering on Electronic Transport Properties of Silicon/Germanium Superlattices
Manoj Settipalli, Vitaly S Proshchenko, Sanghamitra Neogi
Semiconductor superlattices have been extensively investigated for thermoelectric applications, to explore the effects of compositions, interface structures, and lattice strain env…
First-Principles Prediction of Electronic Transport in Experimental Semiconductor Heterostructures via Physics-Based Machine Learning
Artem K. Pimachev, Sanghamitra Neogi
First-principles techniques for electronic transport property prediction have seen rapid progress in recent years. However, it remains a challenge to model heterostructures incorpo…
Theoretical Prediction of Enhanced Thermopower in n-doped Si/Ge Superlattices using Effective Mass Approximation
Manoj Settipalli, Sanghamitra Neogi
We analyze the cross-plane miniband transport in n-doped [001] silicon (Si)/germanium (Ge) superlattices using an effective mass approximation (EMA) approach that correctly account…
Modulation of Semiconductor Superlattice Thermopower Through Symmetry and Strain
Vitaly. S. Proshchenko, Manoj Settipalli, Artem K. Pimachev +1
In doped semiconductors and metals, the thermopower decreases with increasing carrier concentration, in agreement with the Pisarenko relation. Here, we demonstrate a new strain eng…
Heat and charge transport in bulk semiconductors with interstitial defects
Vitaly S. Proshchenko, Pratik P. Dholabhai, Sanghamitra Neogi
Interstitial defects are inevitably present in doped semiconductors that enable modern-day electronic, optoelectronic or thermoelectric technologies. Understanding of stability of…