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Related Concept Videos

Field Effect Transistor01:29

Field Effect Transistor

Field-effect transistors (FETs) are integral to electronic circuits and distinguished by their three-terminal setup: the gate, drain, and source. These transistors operate as unipolar devices, which utilize either electrons or holes as charge carriers, in contrast to bipolar transistors, which use both types of carriers. The primary function of the FET is to modulate the flow of these carriers from the source to the drain through a channel. The voltage difference between the gate and source...
MOSFET: Enhancement Mode01:22

MOSFET: Enhancement Mode

Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
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...
Biasing of FET01:22

Biasing of FET

Biasing a Junction Field Effect Transistor (JFET) is crucial for setting operational parameters and ensuring efficient functioning in electronic circuits. JFETs are characterized by using a single carrier type in N-channel or P-channel configurations, where the channel is surrounded by PN junctions. These junctions are central to the device's ability to control current flow.
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the gate...
Characteristics of MOSFET01:17

Characteristics of MOSFET

Metal-oxide-semiconductor field-effect Transistors, or MOSFETs, play a critical role in electronic circuits. They are primarily utilized for amplifying and switching signals.
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...

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Related Experiment Video

Updated: May 18, 2026

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection
07:51

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection

Published on: February 1, 2022

Performance evaluation of electro-optic effect based graphene transistors.

Gaurav Gupta1, Mansoor Bin Abdul Jalil, Bin Yu

  • 1Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117576, Republic of Singapore.

Nanoscale
|September 6, 2012
PubMed
Summary
This summary is machine-generated.

Two novel graphene transistor designs overcome the material's bandgap limitation for ultra-low power, high-speed logic. Both designs achieve excellent subthreshold slope (SS) performance, guiding circuit designers.

More Related Videos

Effect of Bending on the Electrical Characteristics of Flexible Organic Single Crystal-based Field-effect Transistors
08:43

Effect of Bending on the Electrical Characteristics of Flexible Organic Single Crystal-based Field-effect Transistors

Published on: November 7, 2016

Related Experiment Videos

Last Updated: May 18, 2026

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection
07:51

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection

Published on: February 1, 2022

Effect of Bending on the Electrical Characteristics of Flexible Organic Single Crystal-based Field-effect Transistors
08:43

Effect of Bending on the Electrical Characteristics of Flexible Organic Single Crystal-based Field-effect Transistors

Published on: November 7, 2016

Area of Science:

  • Graphene electronics
  • Semiconductor device physics
  • Nanoelectronics

Background:

  • Graphene's lack of a bandgap hinders its use in logic devices.
  • Novel designs are needed for ultra-low power, high-speed transistors.

Purpose of the Study:

  • To computationally evaluate two proposed graphene device designs.
  • To compare their performance for logic applications.

Main Methods:

  • Optical modeling of low-field electron transport.
  • Analysis of subthreshold slope (SS) and I(ON)/I(OFF) ratio.
  • Evaluation under varying temperature and voltage bias.

Main Results:

  • Both designs achieve SS < 60 mV/decade.
  • Designs exhibit functionally similar performance.
  • Marginal performance differences observed under specific operating conditions.

Conclusions:

  • Both designs effectively open a virtual bandgap in graphene.
  • The choice of design depends on specific system requirements.
  • Results aid circuit designers in selecting optimal graphene transistor architectures.