The contribution of 3D nanoscale indium fluctuations into the efficiency droop in the green and blue InGaN GaN LEDs

It was shown that the contribution of 3D nanoscale indium fluctuations into the efficiency droop at j < 50 A cm2 can be very high and results in different shapes of the efficiency dependency on current η(j) in blue and green LEDs. Reducing 3D nanoscale indium fluctuations can decrease the efficie...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Conference series 2016-08, Vol.741 (1), p.12101
Main Authors: Talnishnikh, N A, Chernyakov, A E, Shabunina, E I, Shmidt, N M
Format: Article
Language:English
Subjects:
Efficiency
Gallium nitrides
Indium
Indium gallium nitrides
Light emitting diodes
Physics
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:It was shown that the contribution of 3D nanoscale indium fluctuations into the efficiency droop at j < 50 A cm2 can be very high and results in different shapes of the efficiency dependency on current η(j) in blue and green LEDs. Reducing 3D nanoscale indium fluctuations can decrease the efficiency droop in these LEDs. The contribution of delocalized carriers is predominant at j > 50 A cm2 and the current dependences of efficiency, approximated by as η (j) α j-b where 0.2 < b < 0.3, are alike in both green and blue LEDs.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/741/1/012101