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Types of Photodiode

Backward Diode
Backward Diode

Many diodes designed for use specifically as a photodiode use a PIN junction rather than a p–n junction, to increase the speed of response. A photodiode is designed to operate in reverse bias.

Different Types of Diodes
Different Types of Diodes

The signal diode is a silicon doped semiconductor diode or a germanium doped diode but depending up on the doping material the characteristics of the diode varies. In signal diode the characteristics of the silicon doped diode is approximately opposite to the germanium doped diode.

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Gunn Diode
Gunn Diode

Gunn Diode oscillator. Gunn diodes are used to construct gunn diode oscillator for producing microwaves with frequencies starting from 10 GHz to THz. It's a Adverse Differential Resistance system – additionally called as transferred electron machine oscillator – which is a tuned circuit consisting of Gunn diode with DC bias voltage utilized to it.

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Laser Diode
Laser Diode

Photodiode sensors have a high degree of linearity over a large range of light power levels: from fractions of a nanowatt to about 2 mW. Above that light level, corresponding to a current of about 1 mA, the sensor saturates and reads erroneously low.

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Light Emitting Diode
Light Emitting Diode

A light-emitting diode (LED) is a two-lead semiconductor light source. It is a p–n junction diode that emits light when activated. When a suitable current is applied to the leads, electrons are able to recombine with electron holes within the device, releasing energy in the form of photons.

Photodiode
Photodiode

A photodiode is a transducer that takes light energy and converts it into electrical energy. If placed in a dark room, the photodiode is exposed to no light; therefore it creates no electricity. However, if light falls upon it, it takes the light energy and produces electric current in response.

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PIN Diode
PIN Diode

A PIN diode is a diode with a wide, undoped intrinsic semiconductor region between a p-type semiconductor and an n-type semiconductor region. The p-type and n-type regions are typically heavily doped because they are used for ohmic contacts.

PN Junction Diode
PN Junction Diode

A photodiode is a PN-junction diode that consumes light energy to produce electric current. Sometimes it is also called as photo-detector, a light detector, and photo-sensor.

source: elprocus.com