Charge transfer mechanism for realization of double negative differential transconductance

Abstract With development of information age, multi-valued logic (MVL) technology utilizing negative differential transconductance (NDT) phenomenon has drawn attention as next-generation computing technology that can replace binary logic. However, because conventional NDT devices primarily use terna...

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Main Authors: Kyu Hyun Han, Seung-Hwan Kim, Seung-Geun Kim, Jong-Hyun Kim, Sungjoo Song, Hyun-Yong Yu
Format: Article
Language:English
Published: Nature Portfolio 2024-02-01
Series:npj 2D Materials and Applications
Online Access:https://doi.org/10.1038/s41699-024-00454-z
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author Kyu Hyun Han
Seung-Hwan Kim
Seung-Geun Kim
Jong-Hyun Kim
Sungjoo Song
Hyun-Yong Yu
author_facet Kyu Hyun Han
Seung-Hwan Kim
Seung-Geun Kim
Jong-Hyun Kim
Sungjoo Song
Hyun-Yong Yu
author_sort Kyu Hyun Han
collection DOAJ
description Abstract With development of information age, multi-valued logic (MVL) technology utilizing negative differential transconductance (NDT) phenomenon has drawn attention as next-generation computing technology that can replace binary logic. However, because conventional NDT devices primarily use ternary logic, multiple-peak NDT device is required for higher-radix MVL that can process more datasets. Here, van der Waals double-peak anti-ambipolar transistor (AAT) as NDT device was developed by utilizing peak voltage (Vpeak) modulation of NDT peak. For realization of quaternary logic, Vpeak modulation technology was developed through charge transfer mechanism from channel, thereby shifting NDT peak and increasing peak-to-valley current ratio (PVCR). Furthermore, Double-peak AAT was implemented through parallel configuration of two AATs with different Vpeak values. Finally, quaternary inverter with four widely stable logic states was implemented by utilizing the developed double-peak AAT with two distinct NDT peaks and high PVCR. This double-peak AAT is expected to contribute to the development of next-generation MVL technology capable of processing datasets.
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spelling doaj.art-86c8de4baa87489b80fff6ffc3cd64de2024-03-05T19:17:41ZengNature Portfolionpj 2D Materials and Applications2397-71322024-02-01811910.1038/s41699-024-00454-zCharge transfer mechanism for realization of double negative differential transconductanceKyu Hyun Han0Seung-Hwan Kim1Seung-Geun Kim2Jong-Hyun Kim3Sungjoo Song4Hyun-Yong Yu5School of Electrical Engineering, Korea UniversityCenter for Spintronics, Korea Institute of Science and Technology (KIST)Department of Semiconductor Systems Engineering, Korea UniversityDepartment of Semiconductor Systems Engineering, Korea UniversityDepartment of Semiconductor Systems Engineering, Korea UniversitySchool of Electrical Engineering, Korea UniversityAbstract With development of information age, multi-valued logic (MVL) technology utilizing negative differential transconductance (NDT) phenomenon has drawn attention as next-generation computing technology that can replace binary logic. However, because conventional NDT devices primarily use ternary logic, multiple-peak NDT device is required for higher-radix MVL that can process more datasets. Here, van der Waals double-peak anti-ambipolar transistor (AAT) as NDT device was developed by utilizing peak voltage (Vpeak) modulation of NDT peak. For realization of quaternary logic, Vpeak modulation technology was developed through charge transfer mechanism from channel, thereby shifting NDT peak and increasing peak-to-valley current ratio (PVCR). Furthermore, Double-peak AAT was implemented through parallel configuration of two AATs with different Vpeak values. Finally, quaternary inverter with four widely stable logic states was implemented by utilizing the developed double-peak AAT with two distinct NDT peaks and high PVCR. This double-peak AAT is expected to contribute to the development of next-generation MVL technology capable of processing datasets.https://doi.org/10.1038/s41699-024-00454-z
spellingShingle Kyu Hyun Han
Seung-Hwan Kim
Seung-Geun Kim
Jong-Hyun Kim
Sungjoo Song
Hyun-Yong Yu
Charge transfer mechanism for realization of double negative differential transconductance
npj 2D Materials and Applications
title Charge transfer mechanism for realization of double negative differential transconductance
title_full Charge transfer mechanism for realization of double negative differential transconductance
title_fullStr Charge transfer mechanism for realization of double negative differential transconductance
title_full_unstemmed Charge transfer mechanism for realization of double negative differential transconductance
title_short Charge transfer mechanism for realization of double negative differential transconductance
title_sort charge transfer mechanism for realization of double negative differential transconductance
url https://doi.org/10.1038/s41699-024-00454-z
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