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Majority carrier transport in single crystal rutile nanowire arrays

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dc.contributor.authorMohammadpour, Arash
dc.contributor.authorFarsinezhad, Samira
dc.contributor.authorWiltshire, Benjamin D.
dc.contributor.authorShankar, Karthik
dc.date.accessioned2025-05-01T12:16:04Z
dc.date.available2025-05-01T12:16:04Z
dc.date.issued2013-11-27
dc.descriptionMonocrystalline n-TiO2 nanowires of the rutile phase (Rtl-NWs) grown by a scalable hydrothermal method constitute a functional oxide nanomaterial with potential applications in photovoltaics, photocatalysts, field emitters and electro-chemical battery anodes. Carrier transport in Rtl-NWs is of fundamental importance but has hitherto been inferred in-directly via impedance and intensity-modulated spectro-scopic techniques. We report an effective electron drift mobility of 1.95 x 10^-5 cm2 V-1s-1 in rutile nanowire arrays directly measured using the time-of-flight (TOF) and space charge limited current techniques. In addition, we measure an equilibrium free electron concentration of ~10^14 cm-3 and a trap density of 3.5 x 10^16 cm-3 in rutile nanowires. These results point to the importance of reducing traps to improve charge transport in rutile nanowires.
dc.identifier.doihttps://doi.org/10.7939/r3-wnvt-k063
dc.language.isoen
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.subjectsolvothermal
dc.subjectphotoconductivity
dc.subjectphotoelectrochemical solar cells
dc.subjectelectrical transient
dc.titleMajority carrier transport in single crystal rutile nanowire arrays
dc.typehttp://purl.org/coar/resource_type/c_6501 http://purl.org/coar/version/c_71e4c1898caa6e32 http://purl.org/coar/version/c_b1a7d7d4d402bcce
ual.jupiterAccesshttp://terms.library.ualberta.ca/public

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