TY  - JOUR
ID  - zu28346
UR  - http://jap.aip.org/
A1  - Zinovchuk, A. V.
A1  - Malyutenko, O. Yu.
A1  - Malyutenko, V. K.
A1  - Podoltsev, A. D.
A1  - Vilisov, A. A.
Y1  - 2008///
N2  - The results of the light and temperature micromapping in AlGaAs light emitting diodes grown by
liquid phase epitaxy as double heterostructures and emitting at ??0.87 ?m are presented. At a
driving current well above the safe operating limit ??300 mA?, the nonuniform light pattern and
local self-heating ?with temperature gradient of about 950 °C/cm? followed by catastrophic
degradation of a device were detected with the charge coupled device and infrared microscopes
operating in a pulsed mode. These were shown to result from the current crowding effect in the active and contact areas of a device. Good agreement between the theory and experiment was found
PB  - American Institute of Physics
JF  - Journal Of Applied Physics
VL  - 104
KW  - current crowding
KW  -  AlGaAs 
KW  -  temperature gradient
SN  - 1089-7550
TI  - The effect of current crowding on the heat and light pattern in high-power AlGaAs light emitting diodes
AV  - public
ER  -