Related Experiment Video
Updated: Jun 4, 2026

A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy
Published on: April 8, 2018
Ferroelectric-Polarization-Modulated 2D Floating-Gate Memory Enabling a 106 On/Off Ratio under ±1 V Gate-Voltage
Tianze Yu1, Ce Li1, Weili Zhen1
1Centre for Quantum Physics, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE), School of Physics, Beijing Institute of Technology, Beijing 102488, China.
None:
Floating-gate transistors based on 2D materials have attracted great interest owing to their superior memory characteristics and high reliability. However, most reported devices still suffer from high operating voltages, limited multifunctionality, etc. Here, we proposed a ferroelectric-polarization-modulated floating-gate transistor (FMFGT) based on a CIPS/MLG/hBN/MoS2 van der Waals heterostructure. The switchable and stable ferroelectric polarization of CIPS effectively reduces the tunneling barrier, exhibiting an on/off ratio (>106) when the sweep voltage is reduced to 1 V. In addition, the FMFGT exhibits robust dynamic response under an ultrafast pulse (∼20 ns) and achieves a maximum on/off ratio exceeding 109. Furthermore, the device demonstrates controllable synaptic plasticity under diverse stimuli, facilitating the integration of multiple optoelectronic logic gates. This work provides new insights into the role of ferroelectric polarization in floating-gate devices and establishes a promising solution toward low-voltage, multifunctional memories in edge computing and artificial intelligence.
Related Concept Videos
MOS Capacitor
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
MOSFET: Enhancement Mode
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no current...
Characteristics of MOSFET
Various vital parameters influence their functionality, which is crucial for theory and electronics applications. First, channel dimensions, precisely length, and width, are pivotal. The size of these channels affects the transistor's ability to carry current and switching speeds; shorter channels typically enable quicker...
Biasing of FET
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the gate...
MOSFET
In an n-MOSFET, the structure includes n-type source and drain...
MOSFET: Depletion Mode
The primary characteristic of depletion-mode MOSFETs is their ability to conduct current between the drain and source terminals without gate bias. This inherent conductivity arises...

