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    Temperature-dependent optical properties of titanium nitride

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    Briggs, Justin A.; Naik, Gururaj V.; Zhao, Yang; Petach, Trevor A.; Sahasrabuddhe, Kunal; More... Goldhaber-Gordon, David; Melosh, Nicholas A.; Dionne, Jennifer A. Less...
    Date
    2017
    Abstract
    The refractory metal titanium nitride is promising for high-temperature nanophotonic and plasmonic applications, but its optical properties have not been studied at temperatures exceeding 400 °C. Here, we perform in-situ high-temperature ellipsometry to quantify the permittivity of TiN films from room temperature to 1258 °C. We find that the material becomes more absorptive at higher temperatures but maintains its metallic character throughout visible and near infrared frequencies. X-ray diffraction, atomic force microscopy, and mass spectrometry confirm that TiN retains its bulk crystal quality and that thermal cycling increases the surface roughness, reduces the lattice constant, and reduces the carbon and oxygen contaminant concentrations. The changes in the optical properties of the material are highly reproducible upon repeated heating and cooling, and the room-temperature properties are fully recoverable after cooling. Using the measured high-temperature permittivity, we compute the emissivity, surface plasmon polariton propagation length, and two localized surface plasmon resonance figures of merit as functions of temperature. Our results indicate that titanium nitride is a viable plasmonic material throughout the full temperature range explored.
    Citation
    Briggs, Justin A., Naik, Gururaj V., Zhao, Yang, et al.. "Temperature-dependent optical properties of titanium nitride." Applied Physics Letters, 110, no. 10 (2017) AIP Publishing LLC: http://dx.doi.org/10.1063/1.4977840.
    Published Version
    http://dx.doi.org/10.1063/1.4977840
    Type
    Journal article
    Publisher
    AIP Publishing LLC
    Citable link to this page
    https://hdl.handle.net/1911/94041
    Rights
    Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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    Home | FAQ | Contact Us | Privacy Notice | Accessibility Statement
    Managed by the Digital Scholarship Services at Fondren Library, Rice University
    Physical Address: 6100 Main Street, Houston, Texas 77005
    Mailing Address: MS-44, P.O.BOX 1892, Houston, Texas 77251-1892
    Site Map