Bulk-like transverse electron mobility in an array of heavily n-doped InP nanowires probed by terahertz spectroscopy

C. S. Ponseca; H. Němec; J. Wallentin; N. Anttu; J. P. Beech; A. Iqbal; M. Borgström; M.-E. Pistol; L. Samuelson; A. Yartsev

doi:10.1103/PhysRevB.90.085405

Bulk-like transverse electron mobility in an array of heavily n-doped InP nanowires probed by terahertz spectroscopy

C. S. Ponseca, H. Němec, J. Wallentin, N. Anttu, J. P. Beech, A. Iqbal, M. Borgström, M.-E. Pistol, L. Samuelson, A. Yartsev

Forskningsoutput: Tidskriftsbidrag › Artikel › Vetenskaplig › Peer review

24 Citeringar (Scopus)

Sammanfattning

Terahertz spectroscopy is employed for the noncontact measurement of transversal mobility in InP nanowires, wherein photonic effects (waveguiding of excitation beam and propagation of terahertz beam in a complex gradient environment) were successfully deconvoluted. Monte Carlo calculations accounting for electron localization and heavy doping were used to determine electron momentum relaxation time corresponding to electron mobility ≥3000cm2/Vs, which is similar to that in bulk InP. The developed approach paves a way for noncontact determination of charge mobility in advanced semiconductor nanostructures.

Originalspråk	Engelska
Artikelnummer	085405
Tidskrift	Physical Review B - Condensed Matter and Materials Physics
Volym	90
Nummer	8
DOI	https://doi.org/10.1103/PhysRevB.90.085405
Status	Publicerad - 5 aug. 2014
Externt publicerad	Ja
MoE-publikationstyp	A1 Tidskriftsartikel-refererad

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Ponseca, C. S., Němec, H., Wallentin, J., Anttu, N., Beech, J. P., Iqbal, A., Borgström, M., Pistol, M.-E., Samuelson, L., & Yartsev, A. (2014). Bulk-like transverse electron mobility in an array of heavily n-doped InP nanowires probed by terahertz spectroscopy. Physical Review B - Condensed Matter and Materials Physics, 90(8), Artikel 085405. https://doi.org/10.1103/PhysRevB.90.085405

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abstract = "Terahertz spectroscopy is employed for the noncontact measurement of transversal mobility in InP nanowires, wherein photonic effects (waveguiding of excitation beam and propagation of terahertz beam in a complex gradient environment) were successfully deconvoluted. Monte Carlo calculations accounting for electron localization and heavy doping were used to determine electron momentum relaxation time corresponding to electron mobility ≥3000cm2/Vs, which is similar to that in bulk InP. The developed approach paves a way for noncontact determination of charge mobility in advanced semiconductor nanostructures.",

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doi = "10.1103/PhysRevB.90.085405",

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Ponseca, CS, Němec, H, Wallentin, J, Anttu, N, Beech, JP, Iqbal, A, Borgström, M, Pistol, M-E, Samuelson, L & Yartsev, A 2014, 'Bulk-like transverse electron mobility in an array of heavily n-doped InP nanowires probed by terahertz spectroscopy', Physical Review B - Condensed Matter and Materials Physics, vol. 90, nr. 8, 085405. https://doi.org/10.1103/PhysRevB.90.085405

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AU - Ponseca, C. S.

AU - Němec, H.

AU - Wallentin, J.

AU - Anttu, N.

AU - Beech, J. P.

AU - Iqbal, A.

AU - Borgström, M.

AU - Pistol, M.-E.

AU - Samuelson, L.

AU - Yartsev, A.

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AB - Terahertz spectroscopy is employed for the noncontact measurement of transversal mobility in InP nanowires, wherein photonic effects (waveguiding of excitation beam and propagation of terahertz beam in a complex gradient environment) were successfully deconvoluted. Monte Carlo calculations accounting for electron localization and heavy doping were used to determine electron momentum relaxation time corresponding to electron mobility ≥3000cm2/Vs, which is similar to that in bulk InP. The developed approach paves a way for noncontact determination of charge mobility in advanced semiconductor nanostructures.

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Bulk-like transverse electron mobility in an array of heavily n-doped InP nanowires probed by terahertz spectroscopy

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