Thermionic Escape in Quantum Well Solar Cell

By Nicolas Cavassilas1, Fabienne Michelini1, Marc Bescond2

1. Aix Marseille Université, CNRS, Marseille, France 2. Centre National de la Recherche Scientifique

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Abstract

This theoretical work analyzes the photogeneration and the escape of carrier in InGaN/GaN core-shell nanowires. Our electronic transport model considers quantum behaviors such as confinement, tunneling, electron-phonon scattering and electron-photon interactions. The large lattice mismatch between InN and GaN requires the use of multiple quantum well design, in which either In content or well thickness is limited. Since thick GaN barriers are required in these stressed devices, we show that tunneling has a negligible impact on carrier escape, which is mostly achieved by the phonon scattering. Our conclusions demonstrate that a thick quantum well with a low In content, in which the confinement is moderate, is more efficient.

Credits

In collaboration with Clémentine Gelly.

Cite this work

Researchers should cite this work as follows:

  • Cavassilas, N., "Thermionic escape in quantum well solar cell," in Computational Electronics (IWCE) 2015 International Workshop on, DOI: 10.1109/IWCE.2015.7301941

  • Nicolas Cavassilas, Fabienne Michelini, Marc Bescond (2015), "Thermionic Escape in Quantum Well Solar Cell," http://nanohub.org/resources/23309.

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Location

North Ballroom, PMU, Purdue University, West Lafayette, IN

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