Open AccessA comprehensive study of current-crowding effect in high power vertical AlInGaN LEDs under high pulsed current
Author(s) -
А. Е. Иванов,
A. V. Aladov,
N Atalnishnikh,
A. E. Chernyakov,
А. Л. Закгейм
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2086/1/012084
Subject(s) - current crowding , light emitting diode , optoelectronics , materials science , current (fluid) , diode , peak current , power (physics) , pulsed power , optics , electrical engineering , engineering , physics , electrode , quantum mechanics , electrochemistry
The goal of the study is examination of current-crowding effect in high power AlInGaN LEDs. This effect was presented by mapping of EL (electroluminescence) near filed under high pulse current. LED chip of vertical design was study in high range of current (10 −9 ÷ 70A). This operating mode of LEDs are interesting for different applications, such as pumping lasers, VLC and LiFi, as well as for investigation accelerated degradation process of LEDs.