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cadmium sulfide (CdS)

Cadmium sulfide(CdS) is a semiconductor material used in photoresistors. This semiconductor material belongs to the II- VI compound semiconductors and has its highest sensitivity at a visible wavelength of 520 nm.

Resistance-light characteristic of a photoresistor

Resistance-light characteristic of a photoresistor

Cadmium selenide (CdSe), another semiconductor material for photoresistors, has its maximum sensitivity at 730 nm. The resistance value of these photoresistors drops with increasing light intensity. A change in light intensity of one power of ten is approximately countered by a change in resistance of one power of ten.

The light-resistance behavior corresponds approximately to an exponential function. In addition, the corresponding photoresistances are strongly temperature-dependent at low luminous intensity.

Englisch: cadmium sulfide - CdS
Updated at: 12.11.2019
#Words: 104
Links: called party subaddress (CdS), semiconductor, voltage independent (UPS) (VI), sensitivity, light
Translations: DE

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