%A Y. Y. Kudryk
%A A. V. Zinovchuk
%J Technical Physics Letters
%T The Effect of Current Crowding on the Internal Quantum Efficiency of InAsSb/InAs Light-Emitting Diodes
%X The effect of current crowding on the internal quantum efficiency (IQE) of InAsSb/InAs light-
emitting diodes (LEDs) operating in the middle?infrared (mid?IR) range (? = 3?5 ?m) has been studied.
Calculations based on a modified model of recombination coefficients show that current crowding leads to a
significant decrease in the IQE of LEDs, which is especially pronounced in longer?wavelength devices (23%
at ? = 3.4 ?m versus 39% at ? = 4.2 ?m). The obtained results indicate that the effect of current crowding
should be taken into consideration as an additional nonthermal mechanism of IQE decrease in mid-IR
LEDs.
%N 5
%K Current Crowding, Light-Emitting Diodes,InAsSb/InAs
%P 14-20
%V 38
%D 2012
%I Springer
%L zu28349