relation: http://eprints.zu.edu.ua/8346/
title: The effect of current crowding on the heat and light pattern in high-power AlGaAs light emitting diodes
creator: Zinovchuk, A. V.
creator: Malyutenko, O. Yu.
creator: Malyutenko, V. K.
creator: Podoltsev, A. D.
creator: Vilisov, A. A.
subject: QC Фізика
description: 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
publisher: American Institute of Physics
date: 2008
type: Стаття
type: PeerReviewed
format: text
language: uk
identifier: http://eprints.zu.edu.ua/8346/1/JAPIAU1043033115_1.pdf
identifier:   Zinovchuk, A. V., Malyutenko, O. Yu., Malyutenko, V. K., Podoltsev, A. D., Vilisov, A. A.  (2008) The effect of current crowding on the heat and light pattern in high-power AlGaAs light emitting diodes.  Journal Of Applied Physics, 104.   ISSN 1089-7550     
relation: http://jap.aip.org/
language: english