Blue light emitting diode internal and injection efficiency

Ilya E. Titkov, Denis A. Sannikov, Young Min Park, Joong Kon Son

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)

Abstract

A simple experimental method of light emitting diode (LED) injection efficiency (IE) determination was suggested. IE and internal quantum efficiency (IQE) calculation is an actual and difficult problem in LED science. In this paper IE and IQE of blue LEDs were determined separately. The method is based on electroluminescence data fitting by themodified rate equationmodel. Efficiency droop caused by Auger recombination and poor injection were taken into account. Only one reasonable assumption was accepted during the calculations: IE tends to 1 at low current densities.

Original languageEnglish
Article number032117
JournalAIP Advances
Volume2
Issue number3
DOIs
Publication statusPublished - 2012
Externally publishedYes

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