Experimental and numerical analyses on terahertz spectra of oxidized cross-linked polyethylene

M. Komatsu, M. Hosobuchi, Yoshimichi Ohki, M. Mizuno, K. Fukunaga, X. Xie, Y. Cheng

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    3 Citations (Scopus)

    Abstract

    Chemically cross-linked polyethylene irradiated by gamma-rays to certain designated doses from 100 to 800 kGy at 100 °C in air was analyzed by terahertz spectroscopy. A peak appears at around 1.3 THz when the sample was irradiated by gamma-rays. By referring to the infrared absorption spectra obtained for the same samples, the peak at 1.3 THz was found to be due to an oxidation-related dipole. It was found that this peak can be fitted to both the Debye and the Lorentz functions similarly. In addition, numerical analyses were carried out using the density functional theory. As a result, it was found that the 1.3-THz peak is likely to be ascribable to resonance.

    Original languageEnglish
    Title of host publicationProceedings of IEEE International Conference on Solid Dielectrics, ICSD
    Pages501-504
    Number of pages4
    DOIs
    Publication statusPublished - 2013
    EventICSD 2013 - Proceedings of the 2013 IEEE International Conference on Solid Dielectrics - Bologna, Italy
    Duration: 2013 Jun 302013 Jul 4

    Other

    OtherICSD 2013 - Proceedings of the 2013 IEEE International Conference on Solid Dielectrics
    CountryItaly
    CityBologna
    Period13/6/3013/7/4

    Fingerprint

    Polyethylene
    Gamma rays
    Polyethylenes
    polyethylenes
    Terahertz spectroscopy
    Infrared absorption
    Dosimetry
    Density functional theory
    Absorption spectra
    gamma rays
    Oxidation
    Air
    infrared absorption
    infrared spectra
    dipoles
    density functional theory
    absorption spectra
    dosage
    oxidation
    air

    Keywords

    • dielectric relaxation
    • oxidation
    • polyethylene
    • resonant vibration
    • terahertz spectroscopy

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Electronic, Optical and Magnetic Materials
    • Materials Chemistry
    • Condensed Matter Physics

    Cite this

    Komatsu, M., Hosobuchi, M., Ohki, Y., Mizuno, M., Fukunaga, K., Xie, X., & Cheng, Y. (2013). Experimental and numerical analyses on terahertz spectra of oxidized cross-linked polyethylene. In Proceedings of IEEE International Conference on Solid Dielectrics, ICSD (pp. 501-504). [6619803] https://doi.org/10.1109/ICSD.2013.6619803

    Experimental and numerical analyses on terahertz spectra of oxidized cross-linked polyethylene. / Komatsu, M.; Hosobuchi, M.; Ohki, Yoshimichi; Mizuno, M.; Fukunaga, K.; Xie, X.; Cheng, Y.

    Proceedings of IEEE International Conference on Solid Dielectrics, ICSD. 2013. p. 501-504 6619803.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Komatsu, M, Hosobuchi, M, Ohki, Y, Mizuno, M, Fukunaga, K, Xie, X & Cheng, Y 2013, Experimental and numerical analyses on terahertz spectra of oxidized cross-linked polyethylene. in Proceedings of IEEE International Conference on Solid Dielectrics, ICSD., 6619803, pp. 501-504, ICSD 2013 - Proceedings of the 2013 IEEE International Conference on Solid Dielectrics, Bologna, Italy, 13/6/30. https://doi.org/10.1109/ICSD.2013.6619803
    Komatsu M, Hosobuchi M, Ohki Y, Mizuno M, Fukunaga K, Xie X et al. Experimental and numerical analyses on terahertz spectra of oxidized cross-linked polyethylene. In Proceedings of IEEE International Conference on Solid Dielectrics, ICSD. 2013. p. 501-504. 6619803 https://doi.org/10.1109/ICSD.2013.6619803
    Komatsu, M. ; Hosobuchi, M. ; Ohki, Yoshimichi ; Mizuno, M. ; Fukunaga, K. ; Xie, X. ; Cheng, Y. / Experimental and numerical analyses on terahertz spectra of oxidized cross-linked polyethylene. Proceedings of IEEE International Conference on Solid Dielectrics, ICSD. 2013. pp. 501-504
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    AU - Ohki, Yoshimichi

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    AU - Fukunaga, K.

    AU - Xie, X.

    AU - Cheng, Y.

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