Defect states and disorder in charge transport in semiconductor nanowires

We present a comprehensive investigation into disorder-mediated charge transport in InP nanowires in the statistical doping regime. At zero gate voltage transport is well described by the space charge limited current model and Efros-Shklovskii variable range hopping, but positive gate voltage (elect...

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Bibliographic Details
Published in:arXiv.org 2011-06
Main Authors: Ko, Dongkyun, Zhao, X W, Reddy, Kongara M, Restrepo, O D, Mishra, R, Beloborodov, I S, Trivedi, Nandini, Padture, Nitin P, Windl, W, Yang, F Y, Johnston-Halperin, E
Format: Article
Language:English
Subjects:
Charge transport
Electric potential
Electronic devices
Nanowires
Space charge
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Summary:We present a comprehensive investigation into disorder-mediated charge transport in InP nanowires in the statistical doping regime. At zero gate voltage transport is well described by the space charge limited current model and Efros-Shklovskii variable range hopping, but positive gate voltage (electron accumulation) reveals a previously unexplored regime of nanowire charge transport that is not well described by existing theory. The ability to continuously tune between these regimes provides guidance for the extension of existing models and directly informs the design of next-generation nanoscale electronic devices.
ISSN:2331-8422