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Towards quantification of the crucial Impact of auger recombination for the Efficiency droop in (AlInGa)N Quantum well structures
- Publisher :
- Universität Regensburg
-
Abstract
- Recent experimental investigations on the reduction of internal quantum efficiency with increasing current density in (AlInGa)N quantum well structures show that Auger recombination is a significant contributor to the so-called "droop" phenomenon. Using photoluminescence (PL) test structures, we find Auger processes are responsible for at least 15 % of the measured efficiency droop. Furthermore, we confirm that electron-electron-hole (nnp) is stronger than electron-hole-hole (npp) Auger recombination in standard LEDs. The ratio of respective Auger coefficients is determined to be in the range 1 < C-nnp = C-npp
- Subjects :
- LIGHT-EMITTING-DIODES
GAN
530 Physik
3. Good health
Subjects
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi...........1b27fad5cb7b0c702c6572ab48cbe0ab