Low-energy D+ and H+ ion irradiation effects on highly oriented pyrolytic graphite

Jun Kue Park; Kyu Won Lee; Jun Hee Han; Jin Jung Kweon; Dowan Kim; Cheol Eui Lee; Sun Taek Lim; Gon Ho Kim; S. J. Noh; H. S. Kim

doi:10.1063/1.4838156

Low-energy D⁺ and H⁺ ion irradiation effects on highly oriented pyrolytic graphite

Jun Kue Park, Kyu Won Lee, Jun Hee Han, Jin Jung Kweon, Dowan Kim, Cheol Eui Lee, Sun Taek Lim, Gon Ho Kim, S. J. Noh, H. S. Kim

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Abstract

We have investigated the low-energy (100 eV) D⁺ and H ⁺ ion irradiation effects on the structural and chemical properties of highly oriented pyrolytic graphite (HOPG). Structural disorder due to the ion irradiation was identified by the Raman spectroscopy, the D⁺ irradiation giving rise to greater structural disorder than the H⁺ irradiation. Only sp² bonding was identified in the X-ray photoemission spectroscopy of the D⁺-irradiated HOPG, indicating no change in the surface chemical structure. The H⁺ irradiation, on the other hand, gave rise to sp³ bonding and π - π * transition, the sp³ bonding increasing with increasing irradiation dose. It is thus shown that the chemical properties of the HOPG surface may be sensitively modified by the low-energy H⁺ ion irradiation, but not by the low-energy D⁺ ion irradiation.

Original language	English
Article number	214310
Journal	Journal of Applied Physics
Volume	114
Issue number	21
DOIs	https://doi.org/10.1063/1.4838156
State	Published - 7 Dec 2013

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title = "Low-energy D+ and H+ ion irradiation effects on highly oriented pyrolytic graphite",

abstract = "We have investigated the low-energy (100 eV) D+ and H + ion irradiation effects on the structural and chemical properties of highly oriented pyrolytic graphite (HOPG). Structural disorder due to the ion irradiation was identified by the Raman spectroscopy, the D+ irradiation giving rise to greater structural disorder than the H+ irradiation. Only sp2 bonding was identified in the X-ray photoemission spectroscopy of the D+-irradiated HOPG, indicating no change in the surface chemical structure. The H+ irradiation, on the other hand, gave rise to sp3 bonding and π - π * transition, the sp3 bonding increasing with increasing irradiation dose. It is thus shown that the chemical properties of the HOPG surface may be sensitively modified by the low-energy H+ ion irradiation, but not by the low-energy D+ ion irradiation.",

author = "{Kue Park}, Jun and {Won Lee}, Kyu and {Hee Han}, Jun and {Jung Kweon}, Jin and Dowan Kim and {Eui Lee}, Cheol and Lim, {Sun Taek} and Kim, {Gon Ho} and Noh, {S. J.} and Kim, {H. S.}",

year = "2013",

month = dec,

day = "7",

doi = "10.1063/1.4838156",

language = "English",

volume = "114",

journal = "Journal of Applied Physics",

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publisher = "American Institute of Physics",

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TY - JOUR

T1 - Low-energy D+ and H+ ion irradiation effects on highly oriented pyrolytic graphite

AU - Kue Park, Jun

AU - Won Lee, Kyu

AU - Hee Han, Jun

AU - Jung Kweon, Jin

AU - Kim, Dowan

AU - Eui Lee, Cheol

AU - Lim, Sun Taek

AU - Kim, Gon Ho

AU - Noh, S. J.

AU - Kim, H. S.

PY - 2013/12/7

Y1 - 2013/12/7

N2 - We have investigated the low-energy (100 eV) D+ and H + ion irradiation effects on the structural and chemical properties of highly oriented pyrolytic graphite (HOPG). Structural disorder due to the ion irradiation was identified by the Raman spectroscopy, the D+ irradiation giving rise to greater structural disorder than the H+ irradiation. Only sp2 bonding was identified in the X-ray photoemission spectroscopy of the D+-irradiated HOPG, indicating no change in the surface chemical structure. The H+ irradiation, on the other hand, gave rise to sp3 bonding and π - π * transition, the sp3 bonding increasing with increasing irradiation dose. It is thus shown that the chemical properties of the HOPG surface may be sensitively modified by the low-energy H+ ion irradiation, but not by the low-energy D+ ion irradiation.

AB - We have investigated the low-energy (100 eV) D+ and H + ion irradiation effects on the structural and chemical properties of highly oriented pyrolytic graphite (HOPG). Structural disorder due to the ion irradiation was identified by the Raman spectroscopy, the D+ irradiation giving rise to greater structural disorder than the H+ irradiation. Only sp2 bonding was identified in the X-ray photoemission spectroscopy of the D+-irradiated HOPG, indicating no change in the surface chemical structure. The H+ irradiation, on the other hand, gave rise to sp3 bonding and π - π * transition, the sp3 bonding increasing with increasing irradiation dose. It is thus shown that the chemical properties of the HOPG surface may be sensitively modified by the low-energy H+ ion irradiation, but not by the low-energy D+ ion irradiation.

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U2 - 10.1063/1.4838156

DO - 10.1063/1.4838156

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SN - 0021-8979

VL - 114

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 21

M1 - 214310

ER -

Low-energy D⁺ and H⁺ ion irradiation effects on highly oriented pyrolytic graphite

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