Register to reply

Recombination current in a p-n junction

by VortexLattice
Tags: current, junction, recombination
Share this thread:
VortexLattice
#1
Dec1-13, 02:35 PM
P: 146
Hello all, I'm reading about rectification in a p-n junction. My book says there are two types of current for a p-n junction not in equilibrium: Generation current, and Recombination Current.

Generation current Seems simple enough, but I don't get something about Recombination current. They say that, if the potential across the depletion layer is [itex]\Delta \phi[/itex], the amount of holes that gets across the depletion layer (from the p-type to n-type side) through thermal motion will be proportional to [itex]e^{-\beta e \Delta \phi}[/itex], where beta is the normal thermal energy term.

Where do they get this equation?

Thanks!
Phys.Org News Partner Physics news on Phys.org
'Squid skin' metamaterials project yields vivid color display
Scientists control surface tension to manipulate liquid metals (w/ Video)
Simulation method identifies materials for better batteries

Register to reply

Related Discussions
Current Limitation in a PN junction Advanced Physics Homework 0
Base current in transistor flows due to recombination of electrons General Engineering 1
Current in p-n junction Atomic, Solid State, Comp. Physics 0
PN Junction Question - Current Atomic, Solid State, Comp. Physics 2
BJT base recombination current Electrical Engineering 3