Defect states and disorder in charge transport in semiconductor nanowires

Details Defect states and disorder in charge transport in semiconductor nanowires Defect states and disorder in charge transport in semiconductor nanowires

2011-06-22

arxiv.org/abs/1106.4492v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Main Text is 16 pages with 4 figures, Supplemental Materials is additional 6 pages with 1 figure

Scientific paper

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.

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