What is it about?
We used high resolution electron microscopes to know more about the light emission by individual nanometric quantum disks embedded in nano-wires. These light emitters displayed considerable energy shifts depending on the emission intensity. Moreover, their efficiency, amount of light emitted per incident electron, fell considerably when such shifts were observed. These results are consistent with simulations and the fact that high density of carriers reduce the QCSE and lead to Auger recombination.
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Why is it important?
We observe this effects on individual nanometric emitters and give quantitative data about when and how these effects occur.
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This page is a summary of: Nanometer-scale monitoring of quantum-confined Stark effect and emission efficiency droop in multiple GaN/AlN quantum disks in nanowires, May 2016, American Physical Society (APS),
DOI: 10.1103/physrevb.93.205410.
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