1
,2
, Electrons and holes can be injected into the
conduction and valence band in a number of
way.
We also use an external battery bias in a p-n
diode also inject electrons and holes.
This recombination process can be made in
two processes.
They are (i) radiative processes and (ii) non-
radiative processes.
3
, In the radiative process the e-h pair
recombines and a photon is emitted
Electron-hole pairs can also recombine
without emitting light.
Instead, they may emit (i) heat or (ii) a
photon or (iii) along-wavelength photon
together with a phonon.
Such processes
are non-radiative processes.
4
,2
, Electrons and holes can be injected into the
conduction and valence band in a number of
way.
We also use an external battery bias in a p-n
diode also inject electrons and holes.
This recombination process can be made in
two processes.
They are (i) radiative processes and (ii) non-
radiative processes.
3
, In the radiative process the e-h pair
recombines and a photon is emitted
Electron-hole pairs can also recombine
without emitting light.
Instead, they may emit (i) heat or (ii) a
photon or (iii) along-wavelength photon
together with a phonon.
Such processes
are non-radiative processes.
4
