Removal of Ion Implanted Poly Vinyl Phenol using Wet Ozone

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  • Goto Yusuke
    Research Laboratory for Integrated Technological Systems, Kanazawa Institute of Technology
  • Angata Yukihiro
    Research Laboratory for Integrated Technological Systems, Kanazawa Institute of Technology
  • Yamamoto Masashi
    Research Laboratory for Integrated Technological Systems, Kanazawa Institute of Technology
  • Seki Toshio
    Department of Nuclear Engineering, Kyoto University
  • Matsumoto Jiro
    Quantum Science and Engineering Center, Kyoto University
  • Horibe Hideo
    Research Laboratory for Integrated Technological Systems, Kanazawa Institute of Technology The Institute of Scientific and Industrial Research, Osaka University

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We have investigated the removal of poly vinyl phenol (PVP) into which was B, P and As ions implanted with a dose of 5×1013~5×1015 atoms/cm2 at 70keV, using wet ozone. Also, we investigated the thickness of altered layer of ion-implanted PVP using Secondary Ion Mass Spectrometry (SIMS). We investigated the chemical reactivity of wet ozone and ion-implanted PVP by FT-IR. The removability of ion-implanted PVP using wet ozone decreased with increasing dose because the degrees of alteration of benzene ring and O-H group increase with increasing dose. From the results of SIMS, the thickness of altered layer of B-ion-implanted PVP was 387nm, that of P-ion-implanted PVP was 232nm, and that of As-ion-implanted PVP was 142nm. However, the degree of alteration should increase in order of B, P and As, because any samples were implanted at same acceleration energy (70keV). FT-IR indicated that benzene ring content percentage was almost same at removed and not removed. On the other hand, in O-H group, there is a clear difference at removed and not removed, O-H group content percentage decreased drastically at implanted PVP with a dose of 5×1014 atoms/cm2 over. Therefore, the removability of ion-implanted PVP using wet ozone depends on O-H group content than that of benzene ring.

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