In what equipment is a photon radiated when an electron leaves a hole?
- Photo-cell.
- LED.
- Photo diode.
Explanation from PART66Online
In a light-emitting diode, forward current pushes electrons across the junction where they recombine with holes; as each electron drops into a hole it releases its surplus energy as a photon, producing light. A photodiode and photo-cell work the opposite way, absorbing incoming photons to generate current rather than emitting light.
F
funcaul asked · 13 Jun 2016
Please explain
Community Comments (2)
P
PART66Online
13 Jun 2016
Hi.
Photon radiated means emitted a light. Only LED emits light in these 3 options.
Photon radiated means emitted a light. Only LED emits light in these 3 options.
F
funcaul
16 Jun 2016
Ok. Tanx a lot bro
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