SOLUTION OF THE CONTINUITY EQUATION FOR A DIODE WITH SPATIALLY VARYING MINORITY CARRIER LIFETIME

Authors
  1. Hum, R.H.
  2. Kamal, S.S.
  3. Barry, A.L.
Corporate Authors
Communications Research Centre, Ottawa ONT (CAN)
Abstract
A classical steady state solution of the continuity equation for minority carriers injected into a neutral region on one side of a p-n junction assumes a minority carrier lifetime which is constant throughout the neutral region. This produces an exponential decrease of excess carriers with distance from the edge of the depletion region. In some high-efficiency light-emitting diodes, minority carrier recombination is dominated by a radiative recombination process, which is dependent on the density of ionized acceptors in the p-region. In a graded-junction diode, the density of such acceptors inceases with distance from the metallurgical junction, resulting in a recombination rate, and hence a lifetime, which is also a function of this distance. Truncated
Report Number
TN-679 —
Date of publication
15 Feb 1976
Number of Pages
13
DSTKIM No
76-04480
CANDIS No
93249
Format(s):
Hardcopy;Originator's fiche received by DSIS

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