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Buscemi F, Royo M, Goldoni G, et al. Tailoring the core electron density in modulation-doped core-multi-shell nanowires. Nanotechnology. 2016;27(19):195201doi: 10.1088/0957-4484/27/19/195201.
Buscemi, F., Royo, M., Goldoni, G., & Bertoni, A. (2016). Tailoring the core electron density in modulation-doped core-multi-shell nanowires. Nanotechnology, 27(19), 195201. https://doi.org/10.1088/0957-4484/27/19/195201
Buscemi, Fabrizio, et al. "Tailoring the core electron density in modulation-doped core-multi-shell nanowires." Nanotechnology vol. 27,19 (2016): 195201. doi: https://doi.org/10.1088/0957-4484/27/19/195201
Buscemi F, Royo M, Goldoni G, Bertoni A. Tailoring the core electron density in modulation-doped core-multi-shell nanowires. Nanotechnology. 2016 May 13;27(19):195201. doi: 10.1088/0957-4484/27/19/195201. Epub 2016 Apr 04. PMID: 27041743.
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Nanotechnology. 2016 May 13;27(19):195201. doi: 10.1088/0957-4484/27/19/195201. Epub 2016 Apr 04.

Tailoring the core electron density in modulation-doped core-multi-shell nanowires.

Nanotechnology

Fabrizio Buscemi, Miquel Royo, Guido Goldoni, Andrea Bertoni

Affiliations

  1. Department of Physics, Informatics, and Mathematics, University of Modena and Reggio Emilia, Via Campi 213/A, I-41125 Modena, Italy.

PMID: 27041743 DOI: 10.1088/0957-4484/27/19/195201

Abstract

We show how a proper radial modulation of the composition of core-multi-shell nanowires (NWs) critically enhances the control of the free-carrier density in the high-mobility core with respect to core-single-shell structures, thus overcoming the technological difficulty of fine tuning the remote doping density. We calculate the electron population of the different NW layers as a function of the doping density and of several geometrical parameters by means of a self-consistent Schrödinger-Poisson approach: free carriers tend to localize in the outer shell and screen the core from the electric field of the dopants.

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