Photovoltaic detector wikipedia

6.6: Photodetectors

Photodetectors are sensors used to convert light, at optical or other nearby frequencies, to electricity. One way to classify photodetectors is by their type of active material, which may be a solid or a gas. The first type of detectors are

Lecture 12: Photodiode detectors

7 Choice of photodiode materials A photodiode material should be chosen with a bandgap energy slightly less than the photon energy corresponding to the longest operating wavelength of the system. This gives a sufficiently high absorption coefficient to ensure a good response, and yet limits the number of thermally generated carriers in order to attain a low "dark current" (i.e.

Mercury cadmium telluride

Hg 1−x Cd x Te or mercury cadmium telluride (also cadmium mercury telluride, MCT, MerCad Telluride, MerCadTel, MerCaT or CMT) is a chemical compound of cadmium telluride (CdTe) and mercury telluride (HgTe) with a tunable bandgap spanning the shortwave infrared to the very long wave infrared regions. The amount of cadmium (Cd) in the alloy can be chosen so as to tune

Avalanche photodiode

An avalanche photodiode (APD) is a highly sensitive type of photodiode, which in general are semiconductor diodes that convert light into electricity via interband excitation coupled with impact ionization.APDs use materials and a structure optimised for operating with high reverse bias, approaching the reverse breakdown voltage, such that charge carriers generated by the

Photovoltaics

The term "photovoltaic" comes from the Greek φῶς (phōs) meaning "light", and from "volt", the unit of electromotive force, the volt, which in turn comes from the last name of the Italian physicist Alessandro Volta, inventor of the battery (electrochemical cell).The term "photovoltaic" has been in use in English since 1849. [12] In 1989, the German Research Ministry initiated the first

High-Performance MCT Detector, and Photovoltaic Sensor

Explore high-performance MCT detectors and photovoltaic sensors at VIGO Photonics. Our advanced technology ensures superior precision and sensitivity. Elevate your applications with our cutting-edge detectors and sensors. +1(727) 388-1515. info@vigophotonics . About us

Gas detector

A gas detector is a device that detects the presence of gases in an area, often as part of a safety system. A gas detector can sound an alarm to operators in the area where the leak is occurring, giving them the opportunity to leave. to monitor manufacturing processes and emerging technologies such as photovoltaic. They may be used in

VIGO Photonics

Explore cutting-edge uncooled infrared photon detectors at VIGO Photonics, a leading manufacturer in the industry. +48 22 733 54 10. Two-element InAs and InAsSb Photovoltaic IR Detectors for Gas Detection InAs/InAsSb SL Technology Affordable Detection Module Multielement Devices

Semiconductor

A semiconductor is a material that is between the conductor and insulator in ability to conduct electrical current. [1] In many cases their conducting properties may be altered in useful ways by introducing impurities ("doping") into the crystal structure.When two differently doped regions exist in the same crystal, a semiconductor junction is created.

Photoconductivity

Photoconductivity is an optical and electrical phenomenon in which a material becomes more electrically conductive due to the absorption of electromagnetic radiation such as visible light, ultraviolet light, infrared light, or gamma radiation. [1]When light is absorbed by a material such as a semiconductor, the number of free electrons and holes increases, resulting in increased

Photovoltaics

OverviewApplicationsEtymologyHistorySolar cellsPerformance and degradationManufacturing of PV systemsEconomics

There are many practical applications for the use of solar panels or photovoltaics covering every technological domain under the sun. From the fields of the agricultural industry as a power source for irrigation to its usage in remote health care facilities to refrigerate medical supplies. Other applications include power generation at various scales and attempts to integrate them into homes and public infrastructure. PV modules are used in photovoltaic systems and include a lar

Gallium arsenide

Gallium arsenide (GaAs) is a III-V direct band gap semiconductor with a zinc blende crystal structure.. Gallium arsenide is used in the manufacture of devices such as microwave frequency integrated circuits, monolithic microwave integrated circuits, infrared light-emitting diodes, laser diodes, solar cells and optical windows. [6]GaAs is often used as a substrate material for the

InAs photovoltaic detectors

InAs photovoltaic detectors P10090 series, P7163 Low noise high reliability infrared detectors (up to 3 µm band) 1 Structure/Absolute maximum ratings Type No. Dimensional outline/ Window material*1 Package Cooling Photosensitive area (mm) Absolute maximum ratings Thermoelectric cooler allowable current (A) Thermistor

HgCdTe Photovoltaic IR Detectors

Explore high-performance MCT detectors and photovoltaic sensors at VIGO Photonics. Our advanced technology ensures superior precision and sensitivity. Elevate your applications with our cutting-edge detectors and sensors. +48 22 733 54 10. info@vigophotonics . About us

Phototube

Two different types of phototubes. A phototube or photoelectric cell is a type of gas-filled or vacuum tube that is sensitive to light. Such a tube is more correctly called a ''photoemissive cell'' to distinguish it from photovoltaic or photoconductive cells. Phototubes were previously more widely used but are now replaced in many applications by solid state photodetectors.

Photodetector

Silicon drift detectors (SDDs) are X-ray radiation detectors used in x-ray spectrometry (EDS) and electron microscopy (EDX). [17] Photovoltaic. Photovoltaic cells or solar cells which produce a voltage and supply an electric current when sunlight or

Vacuum-ultraviolet photodetectors | PhotoniX | Full Text

The MSM photovoltaic detector consists of two interdigitated back-to-back diodes, which does not require p-type doping of the semiconductor, and has the advantages like simple structure (planar structure), high sensitivity and easy integration. This structure is often implemented by UWB semiconductor-based detectors for which doping is hard to

6.6: Photodetectors

These detectors convert light to electricity because incoming photons of light rip electrons off their atoms, and the flow of the resulting electrons is a current. The second type of detectors are called photoconductive detectors or sometimes photovoltaic detectors, and they operate based on a process called photoconductivity [10, p. 647].

Thorlabs

Our 8.0 µm and 10.6 µm detectors are also available with integrated four-stage thermoelectric coolers (TECs) to maintain the detector elements at -78 °C, as cooling improves detector current responsivity and therefore detectivity.

Optoelectronics

Electronic light sensors. Optoelectronics (or optronics) is the study and application of electronic devices and systems that find, detect and control light, usually considered a sub-field of photonics this context, light often includes invisible forms of radiation such as gamma rays, X-rays, ultraviolet and infrared, in addition to visible light.. Optoelectronic devices are electrical-to

Doping (semiconductor)

Doping of a pure silicon array. Silicon based intrinsic semiconductor becomes extrinsic when impurities such as Boron and Antimony are introduced.. In semiconductor production, doping is the intentional introduction of impurities into an intrinsic (undoped) semiconductor for the purpose of modulating its electrical, optical and structural properties. The doped material is referred to

Detectors | PPT

Types of photo detectors:- • Vacuum Phototubes •Photomultiplier Tubes • Silicon photodiode • Photovoltaic cells • Multichannel Photo detectors 4. • This detector is a vacuum tube with a cesium-coated photocathode- photoemissive in nature •Photons of sufficiently high energy hitting the cathode can dislodge electrons, which are

X-ray detector

X-ray detectors are devices used to measure the flux, spatial distribution, spectrum, and/or other properties of X-rays. Common semiconductor diodes, such as PIN photodiodes or a 1N4007, will produce a small amount of current in photovoltaic mode when placed in an X

Indium antimonide

Indium antimonide (InSb) is a crystalline compound made from the elements indium (In) and antimony (Sb). It is a narrow-gap semiconductor material from the III-V group used in infrared detectors, including thermal imaging cameras, FLIR systems, infrared homing missile guidance systems, and in infrared astronomy dium antimonide detectors are sensitive to infrared

Status and Progress of Research on HgCdTe Photovoltaic Infrared Detectors

Materials used for infrared detectors in recent years are HgCdTe, InSb, InGaAs, Si:X, QWIP and InAs/GaSbT 2 SL, of which HgCdTe is a ternary compound, an alloy of CdTe and HgTe ratios [] is an ideal infrared detector material with a large adjustable range, and the forbidden band width can cover an energy range of 0.1–1.0eV with the change of material

Cadmium telluride

The properties that make CdTe superior for the realization of high performance gamma- and x-ray detectors are high atomic number, large bandgap and high electron mobility ~1100 cm 2 /V·s, The material has the potential for widespread applications in photovoltaic energy generation that will involve extensive human interfaces. Hence, we

Fotovoltaik

Pohon fotovoltaik di Styria, Austria Fotovoltaik diinstal. Fotovoltaik adalah teknologi pengubahan energi dari sinar matahari menjadi energi listrik secara langsung. Peralatan fotovoltaik berbentuk kumpulan sel surya yang disusun secara seri atau paralel dan disatukan menjadi modul surya. [1] Aplikasi fotovoltaik diwujudkan menggunakan panel surya untuk energi dengan mengubah

Photoresistor

A photoresistor (also known as a light-dependent resistor, LDR, or photo-conductive cell) is a passive component that decreases in resistance as a result of increasing luminosity (light) on its sensitive surface, in other words, it exhibits photoconductivity.A photoresistor can be used in light-sensitive detector circuits and light-activated and dark-activated switching circuits acting as a