ABC model for GaAs infrared LED

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SUMMARY

The ABC model, primarily used for GaN-based LEDs, does not apply to GaAs infrared LEDs. The discussion confirms that GaAs devices do not exhibit performance droop, a phenomenon that the ABC model aims to describe. Therefore, an equivalent model for GaAs infrared LEDs is unlikely to exist, as any performance variations would stem from different mechanisms than those observed in nitride-based devices.

PREREQUISITES
  • Understanding of LED technology and types, specifically GaAs and GaN.
  • Familiarity with performance droop phenomena in semiconductor devices.
  • Knowledge of empirical modeling in electronics.
  • Basic grasp of infrared LED applications and characteristics.
NEXT STEPS
  • Research the mechanisms behind performance variations in GaAs infrared LEDs.
  • Explore empirical models used for GaN-based LEDs and their limitations.
  • Investigate alternative models for analyzing GaAs LED performance.
  • Study the applications and advantages of GaAs infrared LEDs in various industries.
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Engineers, researchers, and students in optoelectronics, particularly those focused on LED technology and performance analysis of infrared devices.

Hello890
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Hello,

I have found references giving the equation for an ABC model for GaN-based LEDs (see: file://icnas3.cc.ic.ac.uk/lsm16/materials-10-01233.pdf), but I am not able to find any for simple GaAs infrared LEDs (LED information: https://uk.rs-online.com/web/p/ir-leds/8108247/#). Does similar model exist for this LED?

Thank you
 
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Hi,
I don’t think you will find an ABC model for GaAs devices. As I understand it (and I’m way rusty on this) the ABC model is an empirical model to describe the performance droop in nitride-based devices. As far as I’m aware GaAs devices don’t exhibit a performance droop and if they do it would probably be due to very different mechanisms, so the ABC model would be unlikely to work well.
 

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