(C)Element 3-19 Photoconductive Devices Flashcards
1
Q
What happens to the conductivity of photoconductive material when light shines on it?
A
Conductivity increases when light shines
2
Q
What is the photoconductive effect?
A
increased conductivity of an illuminated semiconductor junction
3
Q
What does the photoconductive effect in crystalline solids produce a noticeable change in?
A
in the resistance of a solid
4
Q
What is the description of an optoisolator ?
A
an LED and photosensitive device
5
Q
What happens to the conductivity of a photosensitive semiconductor junction when it is illuminated?
A
the junction resistance decreases
6
Q
What is the description of an optocoupler?
A
an led and a photosensitive device
