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

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21 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.

OriginalspråkEngelska
Artikelnummer085405
TidskriftPhysical Review B - Condensed Matter and Materials Physics
Volym90
Utgåva8
DOI
StatusPublicerad - 5 aug 2014
Externt publiceradJa
MoE-publikationstypA1 Tidskriftsartikel-refererad

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