nextnano.NEGF - Software for
Quantum Transport

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==== Wurtzite QW LED simulation ====

In the following tutorial we demonstrate how can a wurtzite single Quantum well diode be simulated. 

The structure is built from the following composition depicted in Figure {{ref>bandstructure0}}. 

<figure bandstructure0>
;#;
{{nnp:optics:bandedges0.png}}
;#;
<caption>Band edges without external bias</caption>
</figure>


The band edges can be simulated upon external bias, which is plotted in Figure {{ref>bandstructure}}. 

<figure bandstructure>
;#;
{{nnp:optics:bandedges.png}}
;#;
<caption>Band edges and quasi-Fermi levels of the **p-i-n** diode under forward bias (2.8V)</caption>
</figure>

The bias voltage dependence of the structure can be simulated using drift diffusion method, coupled various recombination processes (SRH, Auger, Direct recombination)   



The quantum efficiency is plotted in 3.

nextnano.NEGF - Software for Quantum Transport

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nextnano.NEGF - Software for
Quantum Transport