2026-06-29T19:38:01Z https://archive.materialscloud.org/oai2d

oai:materialscloud.org:2378 2024-10-08T12:45:47Z openaire_data community-mcarchive

Xia, Chen Hao Deuschle, Leonard Cao, Jiang Maeder, Alexander Luisier, Mathieu Xia, Chen Hao Deuschle, Leonard Cao, Jiang Maeder, Alexander Luisier, Mathieu 2024-10-08 Band-to-band tunnelling field-effect transistors (TFETs) have long been considered as promising candidates for future low-power logic applications. However, fabricated TFETs rarely reach sub-60 mV/dec sub-threshold swings (SS) at room temperature. Previous theoretical studies identified Auger processes as possible mechanisms for the observed degradation of SS. Through first-principles quantum transport simulations incorporating carrier-carrier interactions within the Non-equilibrium Green's Function formalism through self-consistent GW approximation, we confirm here that Auger processes are indeed at least partly responsible for the poor performance of TFETs. Using a carbon nanotube TFET as testbed, we show that carrier-carrier scattering alone significantly increases the OFF-state current of these devices, thus worsening their sub-threshold behavior. The results are in the folder uploaded. application/zip text/markdown text/markdown https://doi.org/10.24435/materialscloud:sm-90 oai:materialscloud.org:2378 mcid:2024.149 eng Materials Cloud https://doi.org/10.1109/LED.2024.3417307 https://ieeexplore.ieee.org/document/10565899 https://archive.materialscloud.org/communities/mcarchive https://doi.org/10.24435/materialscloud:8b-0s info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode electronic structure transport Wannier functions Influence of carrier-carrier interactions on the sub-threshold swing of band-to-band tunnelling transistors info:eu-repo/semantics/other