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Electrical and Morphological Characterization of TiO2 Electrospun Nanofibers

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Sensors and Microsystems

Part of the book series: Lecture Notes in Electrical Engineering ((LNEE,volume 268))

Abstract

Titanium oxide nanofibers were successfully prepared via thermal treatment of electrospun composite polymer (PVP)/TiO2 nanofibers. The morphology and crystal structure were characterized by SEM and TEM. It was confirmed that the calcination process was responsible for the removal of PVP component and the growth of crystalline TiO2. The resulting nanofibers, which have a quite rough surface, an average diameter of 60 nm and a length reaching hundreds of μm, were found to be formed by the agglomeration of TiO2 nanoparticles with brookite phase. Gas-sensing tests towards ethanol demonstrated n-type sensing response and good reversibility at an operating temperature of 450 °C. A first tentative to model electrical impedance spectra was made in order to understand charge transport in relationship with morphological and structural aspects.

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Authors and Affiliations

  1. Institute of Microelectronics and Microsystems (CNR-IMM), via Monteroni, Lecce, 73100, Italy

    S. Capone, C. De Pascali, A. Taurino, M. Catalano & P. Siciliano

  2. Institute of Microelectronics and Microsystems (CNR-IMM), Via del Fosso del Cavaliere 100, Roma, 00133, Italy

    E. Zampetti & A. Macagnano

Authors
  1. S. Capone
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  2. C. De Pascali
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  3. A. Taurino
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  4. M. Catalano
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  5. P. Siciliano
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  6. E. Zampetti
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  7. A. Macagnano
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Corresponding author

Correspondence to S. Capone .

Editor information

Editors and Affiliations

  1. Dept. of Electronic Engineering, University of Rome Tor Vergata, Rome, Italy

    Corrado Di Natale

  2. Department of Information Engineering, University of Brescia, Brescia, Italy

    Vittorio Ferrari

  3. SENSOR Laboratory, IDASC, National Research Council (CNR), Brescia, Italy

    Andrea Ponzoni

  4. Department of Information Engineering, University of Brescia, Brescia, Italy

    Giorgio Sberveglieri

  5. Department of Information Engineering, University of Brescia, Brescia, Italy

    Marco Ferrari

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© 2014 Springer International Publishing Switzerland

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Capone, S. et al. (2014). Electrical and Morphological Characterization of TiO2 Electrospun Nanofibers. In: Di Natale, C., Ferrari, V., Ponzoni, A., Sberveglieri, G., Ferrari, M. (eds) Sensors and Microsystems. Lecture Notes in Electrical Engineering, vol 268. Springer, Cham. https://doi.org/10.1007/978-3-319-00684-0_20

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  • DOI: https://doi.org/10.1007/978-3-319-00684-0_20

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-00683-3

  • Online ISBN: 978-3-319-00684-0

  • eBook Packages: EngineeringEngineering (R0)

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