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A steep switching WSe(2) impact ionization field-effect transistor
The Fermi-Dirac distribution of carriers and the drift-diffusion mode of transport represent two fundamental barriers towards the reduction of the subthreshold slope (SS) and the optimization of the energy consumption of field-effect transistors. In this study, we report the realization of steep-slo...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9568662/ https://www.ncbi.nlm.nih.gov/pubmed/36241618 http://dx.doi.org/10.1038/s41467-022-33770-3 |
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author | Choi, Haeju Li, Jinshu Kang, Taeho Kang, Chanwoo Son, Hyeonje Jeon, Jongwook Hwang, Euyheon Lee, Sungjoo |
author_facet | Choi, Haeju Li, Jinshu Kang, Taeho Kang, Chanwoo Son, Hyeonje Jeon, Jongwook Hwang, Euyheon Lee, Sungjoo |
author_sort | Choi, Haeju |
collection | PubMed |
description | The Fermi-Dirac distribution of carriers and the drift-diffusion mode of transport represent two fundamental barriers towards the reduction of the subthreshold slope (SS) and the optimization of the energy consumption of field-effect transistors. In this study, we report the realization of steep-slope impact ionization field-effect transistors (I(2)FETs) based on a gate-controlled homogeneous WSe(2) lateral junction. The devices showed average SS down to 2.73 mV/dec over three decades of source-drain current and an on/off ratio of ~10(6) at room temperature and low bias voltages (<1 V). We determined that the lucky-drift mechanism of carriers is valid in WSe(2), allowing our I(2)FETs to have high impact ionization coefficients and low SS at room temperature. Moreover, we fabricated a logic inverter based on a WSe(2) I(2)FET and a MoS(2) FET, exhibiting an inverter gain of 73 and almost ideal noise margin for high- and low-logic states. Our results provide a promising approach for developing functional devices as front runners for energy-efficient electronic device technology. |
format | Online Article Text |
id | pubmed-9568662 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-95686622022-10-16 A steep switching WSe(2) impact ionization field-effect transistor Choi, Haeju Li, Jinshu Kang, Taeho Kang, Chanwoo Son, Hyeonje Jeon, Jongwook Hwang, Euyheon Lee, Sungjoo Nat Commun Article The Fermi-Dirac distribution of carriers and the drift-diffusion mode of transport represent two fundamental barriers towards the reduction of the subthreshold slope (SS) and the optimization of the energy consumption of field-effect transistors. In this study, we report the realization of steep-slope impact ionization field-effect transistors (I(2)FETs) based on a gate-controlled homogeneous WSe(2) lateral junction. The devices showed average SS down to 2.73 mV/dec over three decades of source-drain current and an on/off ratio of ~10(6) at room temperature and low bias voltages (<1 V). We determined that the lucky-drift mechanism of carriers is valid in WSe(2), allowing our I(2)FETs to have high impact ionization coefficients and low SS at room temperature. Moreover, we fabricated a logic inverter based on a WSe(2) I(2)FET and a MoS(2) FET, exhibiting an inverter gain of 73 and almost ideal noise margin for high- and low-logic states. Our results provide a promising approach for developing functional devices as front runners for energy-efficient electronic device technology. Nature Publishing Group UK 2022-10-14 /pmc/articles/PMC9568662/ /pubmed/36241618 http://dx.doi.org/10.1038/s41467-022-33770-3 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Choi, Haeju Li, Jinshu Kang, Taeho Kang, Chanwoo Son, Hyeonje Jeon, Jongwook Hwang, Euyheon Lee, Sungjoo A steep switching WSe(2) impact ionization field-effect transistor |
title | A steep switching WSe(2) impact ionization field-effect transistor |
title_full | A steep switching WSe(2) impact ionization field-effect transistor |
title_fullStr | A steep switching WSe(2) impact ionization field-effect transistor |
title_full_unstemmed | A steep switching WSe(2) impact ionization field-effect transistor |
title_short | A steep switching WSe(2) impact ionization field-effect transistor |
title_sort | steep switching wse(2) impact ionization field-effect transistor |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9568662/ https://www.ncbi.nlm.nih.gov/pubmed/36241618 http://dx.doi.org/10.1038/s41467-022-33770-3 |
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