Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

MOSFET Amplifiers01:17

MOSFET Amplifiers

The MOSFET, when operating in its active region, functions as a voltage-controlled current source. In this region, the gate-to-source voltage controls the drain current. This principle underlies the operation of the transconductance MOSFET amplifier. The output current is directed through a load resistor to convert this amplifier into a voltage amplifier. The output voltage is then obtained by subtracting the voltage drop across the load resistance from the supply voltage. This process results...
MOSFET01:16

MOSFET

The Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) plays a pivotal role in modern electronics thanks to its versatility and efficiency in controlling electrical currents. This device, also known as IGFET, MISFET, and MOSFET, has three main terminals: the Source, Drain, and Gate. MOSFETs are classified into n-channel or p-channel types based on the doping characteristics of their substrate and the source or drain regions.
In an n-MOSFET, the structure includes n-type source and drain...
Determination of Crystal Structures01:29

Determination of Crystal Structures

In the late 1800s, the revelation that light extended beyond visible wavelengths led to the discovery of X-rays by Wilhelm Roentgen. Recognized as high-energy electromagnetic radiation with short wavelengths, X-rays prompted exploration into their interaction with crystals. Max von Laue proposed in 1912 that the periodic arrangement of atoms, ions, or molecules in crystals would cause them to diffract X-rays, a hypothesis confirmed through experiments with copper sulfate and zinc sulfide...
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...
MOSFET: Depletion Mode01:20

MOSFET: Depletion Mode

Depletion-mode MOSFETs represent a unique subset of MOSFET technology, functioning fundamentally differently from their enhancement-mode counterparts. Unlike enhancement MOSFETs, which require a positive gate-source voltage (Vgs) to turn on, depletion-mode MOSFETs are inherently conductive and "normally on" devices.
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...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

A multivariate approach to exploring interrelationships among milk fatty acids across ruminant species.

Journal of dairy science·2026
Same author

Two-Photon Sub-Bandgap Photocurrent in Surface-Nanotextured Black Diamond Films for Solar Energy Conversion.

ACS photonics·2025
Same author

Exploring novel circulating biomarkers for liver cancer through extracellular vesicle characterization with infrared spectroscopy and plasmonics.

Analytica chimica acta·2024
Same author

Growth performance, proximate composition and fatty acid profile of black soldier fly larvae reared on two grape pomace varieties.

Animal : an international journal of animal bioscience·2024
Same author

AIEC-dependent pathogenic Th17 cell transdifferentiation in Crohn's disease is suppressed by <i>rfaP</i> and <i>ybaT</i> deletion.

Gut microbes·2024
Same author

Effect of different diet composition on the fat profile of two different black soldier fly larvae populations.

Animal : an international journal of animal bioscience·2024

Related Experiment Video

Updated: May 25, 2026

High Pressure Single Crystal Diffraction at PX^2
11:32

High Pressure Single Crystal Diffraction at PX^2

Published on: January 16, 2017

Polycrystalline diamond UV-triggered MESFET receivers.

G Conte1, E Giovine, M Girolami

  • 1University Roma Tre, Via Vasca Navale 84, 00146 Rome, Italy. gconte@fis.uniroma3.it

Nanotechnology
|January 21, 2012
PubMed
Summary

New UV-sensitive receivers fabricated on polycrystalline diamond (a semiconductor material) show fast responses. These optically triggered devices could replace copper wires in power management systems.

More Related Videos

Fixed Target Serial Data Collection at Diamond Light Source
06:19

Fixed Target Serial Data Collection at Diamond Light Source

Published on: February 26, 2021

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
07:42

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

Published on: December 15, 2021

Related Experiment Videos

Last Updated: May 25, 2026

High Pressure Single Crystal Diffraction at PX^2
11:32

High Pressure Single Crystal Diffraction at PX^2

Published on: January 16, 2017

Fixed Target Serial Data Collection at Diamond Light Source
06:19

Fixed Target Serial Data Collection at Diamond Light Source

Published on: February 26, 2021

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
07:42

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

Published on: December 15, 2021

Area of Science:

  • Materials Science
  • Optoelectronics
  • Semiconductor Devices

Background:

  • Polycrystalline diamond is explored for optoelectronic applications due to its wide bandgap and thermal conductivity.
  • Metal-semiconductor field-effect transistors (MESFETs) are investigated for optical detection.
  • Improving photogeneration efficiency in wide-bandgap semiconductors is crucial for high-performance receivers.

Purpose of the Study:

  • To fabricate and characterize optically triggered UV-sensitive receivers using polycrystalline diamond.
  • To enhance photogenerated charge collection efficiency using opaque gates with asymmetric structures.
  • To evaluate the transient response of these devices for potential use in optical communication.

Main Methods:

  • Fabrication of surface channel MESFETs on polycrystalline diamond substrates.
  • Design of opaque gates with asymmetric structures to optimize charge photogeneration.
  • Testing with 193 nm UV laser pulses (3 ns width) to assess UV sensitivity.
  • Analysis of the transient response to determine device speed and performance.

Main Results:

  • Successful fabrication of UV-sensitive receivers on polycrystalline diamond.
  • Demonstrated improved photogeneration and current signal enhancement via gate design.
  • Observed transient response limited by pulse rise time and charge collection within nanoseconds.
  • Confirmed suitability for high-speed optical signal detection.

Conclusions:

  • Optically triggered UV receivers on polycrystalline diamond MESFETs exhibit high sensitivity and rapid response.
  • Asymmetric opaque gate design effectively enhances photogenerated charge collection.
  • These diamond-based devices offer a promising alternative to traditional electronics in optical communication and power management systems.