Question

beritly explain about photoconductive cell ​

Answer 1

Explanation:

Photoconductive cell operation

(also photoresistive cell, photoresistor), a semiconductor device whose electrical conductivity or resistance changes upon exposure to optical radiation (see). The semiconductor is deposited as a thin film on a glass or quartz substrate or is cut as a thin wafer from a single crystal. ...

Answer 2

Answer:

The photoconductive cell is a two terminal semiconductor device whose terminal resistance will vary (linearly) with the intensity of the inci­dent light. For obvious reasons, it is frequently called a photoresistive device.

The photoconductive materials most frequently used include cadmium sulphide (CdS) and cadmium selenide (CdSe). Both materials respond rather slowly to changes in light intensity. The peak spectral response time of CdS units is about 100 ms and 10 ms for CdSe cells. Another im­portant difference between the two materials is their temperature sensitivity. There is large change in the resistance of a cadmium selenide cell with changes in ambient temperature, but the re­sistance of cadmium sulphide remains relatively stable. The spectral response of a cadmium sulphide cell closely matches thatof the human eye, and the cell is therefore often used in applications where human vision is a factor, such as street light control or automatic iris control for cameras.

The essential elements of a photoconductive cell are the ceramic substrate, a layer of photo­conductive material, metallic electrodes to connect the device into a circuit and a moisture re­sistant enclosure.

Explanation:

Mark me as brainliest.