Publications (14)
Significant reduction in semiconductor interface resistance via interfacial atomic mixing
Qichen Song, Jiawei Zhou, Gang Chen
The contact resistance between two dissimilar semiconductors is determined by the carrier transmission through their interface. Despite the ubiquitous presence of interfaces, quant…
Observation of microscopic domain effects in the metal-insulator transition of thin-film NdNiO
Lucy S. Nathwani, Anne Ruperto, Ashvini Vallipuram +8
Perovskite oxides display correlated electrical, magnetic, and thermal properties that can be further tuned in the thin-film limit, making them contenders for next-generation elect…
The Effect of Shallow vs. Deep Level Doping on the Performance of Thermoelectric Materials
Qichen Song, Jiawei Zhou, Laureen Meroueh +3
It is well known that the efficiency of a good thermoelectric material should be optimized with respect to doping concentration. However, much less attention has been paid to the o…
Virtual Node Graph Neural Network for Full Phonon Prediction
Ryotaro Okabe, Abhijatmedhi Chotrattanapituk, Artittaya Boonkird +10
The structure-property relationship plays a central role in materials science. Understanding the structure-property relationship in solid-state materials is crucial for structure d…
Simultaneously high electron and hole mobilities in cubic boron-V compounds: BP, BAs and BSb
Te-Huan Liu, Bai Song, Laureen Meroueh +5
Through first-principles calculations, the phonon-limited transport properties of cubic boron-V compounds (BP, BAs and BSb) are studied. We find that the high optical phonon freque…
study of electron mean free paths and thermoelectric properties of lead telluride
Qichen Song, Te-Huan Liu, Jiawei Zhou +2
Last few years have witnessed significant enhancement of thermoelectric figure of merit of lead telluride (PbTe) via nanostructuring. Despite the experimental progress, current und…