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Erschienen in: Journal of Computational Electronics 4/2012

01.12.2012

Modelling surface effects in nano wire optoelectronic devices

verfasst von: Friedhard Römer, Bernd Witzigmann

Erschienen in: Journal of Computational Electronics | Ausgabe 4/2012

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Abstract

Recent research on optoelectronic devices focuses on nano structuring which is expected to improve the performance and reduce the production costs of light emitting diodes for lighting purposes and solar cells, for instance. Structuring on the sub-micrometer scale increases the surface with respect to the active volume so that surface effects become crucial for the device performance. In this work we demonstrate the computational modelling of nano structured optoelectronic devices to complement the experiment. The implementation of the simulation model considers surface effects in these devices using a true area box method discretization. The derived surface models are applied on the self-consistent simulation of nano wire quantum disk light emitting diodes. By the computational study we demonstrate that the surface physical effects are critical for the performance of nano-structured optoelectronic devices and that surface recombination can lead to a low efficiency.

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Metadaten
Titel
Modelling surface effects in nano wire optoelectronic devices
verfasst von
Friedhard Römer
Bernd Witzigmann
Publikationsdatum
01.12.2012
Verlag
Springer US
Erschienen in
Journal of Computational Electronics / Ausgabe 4/2012
Print ISSN: 1569-8025
Elektronische ISSN: 1572-8137
DOI
https://doi.org/10.1007/s10825-012-0424-9

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