Versatile Dual-Gate 2D Transistor for Logic-in-Memory and Neuromodulation Applications

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F26%3A0199884" target="_blank" >RIV/00216305:26220/26:0199884 - isvavai.cz</a>

Result on the web

<a href="https://onlinelibrary.wiley.com/doi/epdf/10.1002/smll.202503991" target="_blank" >https://onlinelibrary.wiley.com/doi/epdf/10.1002/smll.202503991</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/smll.202503991" target="_blank" >10.1002/smll.202503991</a>

Result language

angličtina

Original language name

Versatile Dual-Gate 2D Transistor for Logic-in-Memory and Neuromodulation Applications

Original language description

Van der Waals heterostructure devices integrating memory and processing functions have been explored to overcome the von Neumann bottleneck. While most of these devices support logic or neuromorphic functionalities, few have demonstrated combined memory, logic, and neuromodulation capabilities. In this work, a dual-gate van der Waals heterostructure floating-gate field-effect transistor with access regions is presented, utilizing molybdenum disulfide as the channel, hexagonal boron nitride as the insulating and tunneling layers, and graphene as the floating gate, that seamlessly integrates memory, logic, and neuromorphic functions in a single device. The transistor exhibits robust memory characteristics, including a large memory window (133 V), excellent retention (approximate to 10 000 s), and high endurance (>500 cycles). Leveraging its dual-gate architecture, the device demonstrates reconfigurable two-input logic OR and NOT operations, with tunable gain for NOT logic. The device also emulates key synaptic plasticity mechanisms, including spike-amplitude, spike-number, and spike-duration dependence. Notably, the top gate acts as a modulatory neuron, where positive and negative voltages amplify or suppress synaptic responses, respectively. By integrating memory, logic, and neuromodulation in a single device, this van der Waals heterostructure provides a versatile, energy-efficient platform for in-memory logic and neuromorphic applications.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Small

ISSN

1613-6810

e-ISSN

1613-6829

Volume of the periodical

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Issue of the periodical within the volume

2503991

Country of publishing house

DE - GERMANY

Number of pages

11

Pages from-to

1-11

UT code for WoS article

001523608300001

EID of the result in the Scopus database

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