Realistic and Efficient Model for LED Devices

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Existing modeling approaches for transporting charges in LED structures are either semiclassical or quantum-based. Semiclassical structures are essentially obsolete physics mechanics now that quantum effects dominate the physics in LEDs while quantum-based structures are hard to replicate realistically into software. So far, all known quantum transport approaches are too expensive to apply in LED device designs and are still not accurate when it comes to emulating charges returning to their equilibrium. LED technology needs a way to reduce numerical costs and provide important physical processes accurately.

Researchers at Purdue University have developed a multi-scale model of an LED device that yields realistic results while reducing costs tremendously for electron and hole transport through the mechanism. This efficient model is currently being used within the patented Nanoelectronic Modeling Tool (NEMO5). Values such as the dynamics (states) and the kinetics (filling of states) as well as the local density of the states are computed using functions within this particular program.

-Reduced costs
-Numerically efficient
-Realistic Results

Potential Applications:
-Construction of LED structures (lighting)
-NEMO5, Nanoelectronic Modeling Tool
May 23, 2017
United States
May 23, 2017

May 22, 2018
Utility Patent
United States

May 22, 2017
United States
Purdue Office of Technology Commercialization
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