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

Research output: Contribution to journal › Article › Scientific › peer-review

23 Citations (Scopus)

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.

Original language	English
Article number	085405
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	90
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevB.90.085405
Publication status	Published - 5 Aug 2014
Externally published	Yes
MoE publication type	A1 Journal article-refereed

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10.1103/PhysRevB.90.085405

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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), Article 085405. https://doi.org/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, no. 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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