Charge transfer mechanism for realization of double negative differential transconductance

IF 9.1 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

npj 2D Materials and Applications Pub Date : 2024-02-29 DOI:10.1038/s41699-024-00454-z

Kyu Hyun Han, Seung-Hwan Kim, Seung-Geun Kim, Jong-Hyun Kim, Sungjoo Song, Hyun-Yong Yu

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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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实现双负差转导的电荷转移机制

随着信息时代的发展，利用负差分跨导（NDT）现象的多值逻辑（MVL）技术作为可取代二进制逻辑的下一代计算技术备受关注。然而，由于传统的 NDT 器件主要使用三元逻辑，因此需要多峰值 NDT 器件来实现能处理更多数据集的更高radix MVL。在此，利用峰值电压（Vpeak）调制无损检测峰值，开发了范德瓦尔斯双峰值反双极晶体管（AAT）作为无损检测器件。为实现四元逻辑，通过沟道电荷转移机制开发了 Vpeak 调制技术，从而移动无损检测峰值并提高峰谷电流比 (PVCR)。此外，通过并行配置两个具有不同 Vpeak 值的 AAT，实现了双峰值 AAT。最后，利用开发出的具有两个不同 NDT 峰值和高 PVCR 的双峰 AAT，实现了具有四个广泛稳定逻辑状态的四元逆变器。预计这种双峰值 AAT 将有助于开发能够处理数据集的下一代 MVL 技术。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

npj 2D Materials and Applications Engineering-Mechanics of Materials

CiteScore

14.50

自引率

2.10%

发文量

审稿时长

15 weeks

期刊介绍： npj 2D Materials and Applications publishes papers on the fundamental behavior, synthesis, properties and applications of existing and emerging 2D materials. By selecting papers with the potential for impact, the journal aims to facilitate the transfer of the research of 2D materials into wide-ranging applications.