PHOTOCONDUCTIVE CELL Meaning and
Definition
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A photoconductive cell refers to an electronic component that is primarily designed to exhibit changes in its electrical conductivity when exposed to light. Also known as a photocell or a photoresistor, it consists of a semiconductor material that can conduct electricity when illuminated by photons.
The core principle behind a photoconductive cell is the phenomenon called photoconductivity, wherein the conductivity of a material changes due to the absorption of light energy. When photons strike the surface of a photoconductive cell, they provide enough energy to excite the electrons within the semiconductor material, thus causing an increase in its conductivity. Conversely, when the light source is removed, the semiconductor returns to its original state of lower conductivity.
The characteristic properties of a photoconductive cell, such as its sensitivity to different wavelengths of light and response time, largely depend on the specific semiconductor material used. Commonly employed materials include cadmium sulfide (CdS) and cadmium selenide (CdSe), due to their ability to exhibit alterations in conductivity over a wide range of visible as well as infrared light.
Photoconductive cells find widespread usage in various practical applications. They are commonly utilized in light meters, burglar alarm systems, automatic lighting control systems, and even in optical communication devices. Due to their simple structure, cost-effectiveness, and versatility, photoconductive cells have become essential components in numerous electronic and optoelectronic systems.
Common Misspellings for PHOTOCONDUCTIVE CELL
- ohotoconductive cell
- lhotoconductive cell
- -hotoconductive cell
- 0hotoconductive cell
- pgotoconductive cell
- pbotoconductive cell
- pnotoconductive cell
- pjotoconductive cell
- puotoconductive cell
- pyotoconductive cell
- phitoconductive cell
- phktoconductive cell
- phltoconductive cell
- phptoconductive cell
- ph0toconductive cell
- ph9toconductive cell
- phoroconductive cell
- phofoconductive cell
- phogoconductive cell
Etymology of PHOTOCONDUCTIVE CELL
The word "photoconductive" is derived from two roots: "photo-" and "conductive".
- "Photo-" is derived from the Greek word "phos", meaning "light". This root is commonly used in words related to light, such as "photograph" (light + write) or "photosynthesis" (light + putting together).
- "Conductive" is derived from the Latin word "conductus", meaning "carried together" or "led". related to the verb "conducere" (to lead) and is commonly used in words related to the transmission or flow of electricity, such as "conduct" or "conductor".
When combined, "photoconductive" refers to a material's ability to conduct electricity under the influence of light.
The word "cell" in "photoconductive cell" refers to a device or component that converts light energy into an electrical signal.
Similar spelling word for PHOTOCONDUCTIVE CELL
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