Beam-induced graphitic carbon cage transformation from sumanene aggregates

Jun Ichi Fujita; Masashi Tachi; Katsuhisa Murakami; Hidehiro Sakurai; Yuki Morita; Shuhei Higashibayashi; Masaki Takeguchi

doi:10.1063/1.4863739

Beam-induced graphitic carbon cage transformation from sumanene aggregates

Jun Ichi Fujita, Masashi Tachi, Katsuhisa Murakami, Hidehiro Sakurai, Yuki Morita, Shuhei Higashibayashi, Masaki Takeguchi

研究成果: Article › 査読

4 被引用数 (Scopus)

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We found that electron-beam irradiation of sumanene aggregates strongly enhanced their transformation into a graphitic carbon cage, having a diameter of about 20 nm. The threshold electron dose was about 32 mC/cm² at 200 keV, but the transformation is still induced at 20 keV. The transformation sequence suggested that the cage was constructed accompanied by the dynamical movement of the transiently linked sumanene molecules in order to pile up inside the shell. Thus, bond excitation in the sumanene molecules rather than a knock-on of carbon atoms seems to be the main cause of the cage transformation.

本文言語	English
論文番号	043107
ジャーナル	Applied Physics Letters
巻	104
号	4
DOI	https://doi.org/10.1063/1.4863739
出版ステータス	Published - 2014 1月 29
外部発表	はい

ASJC Scopus subject areas

物理学および天文学（その他）

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10.1063/1.4863739

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title = "Beam-induced graphitic carbon cage transformation from sumanene aggregates",

abstract = "We found that electron-beam irradiation of sumanene aggregates strongly enhanced their transformation into a graphitic carbon cage, having a diameter of about 20 nm. The threshold electron dose was about 32 mC/cm2 at 200 keV, but the transformation is still induced at 20 keV. The transformation sequence suggested that the cage was constructed accompanied by the dynamical movement of the transiently linked sumanene molecules in order to pile up inside the shell. Thus, bond excitation in the sumanene molecules rather than a knock-on of carbon atoms seems to be the main cause of the cage transformation.",

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AU - Fujita, Jun Ichi

AU - Tachi, Masashi

AU - Murakami, Katsuhisa

AU - Sakurai, Hidehiro

AU - Morita, Yuki

AU - Higashibayashi, Shuhei

AU - Takeguchi, Masaki

PY - 2014/1/29

Y1 - 2014/1/29

N2 - We found that electron-beam irradiation of sumanene aggregates strongly enhanced their transformation into a graphitic carbon cage, having a diameter of about 20 nm. The threshold electron dose was about 32 mC/cm2 at 200 keV, but the transformation is still induced at 20 keV. The transformation sequence suggested that the cage was constructed accompanied by the dynamical movement of the transiently linked sumanene molecules in order to pile up inside the shell. Thus, bond excitation in the sumanene molecules rather than a knock-on of carbon atoms seems to be the main cause of the cage transformation.

AB - We found that electron-beam irradiation of sumanene aggregates strongly enhanced their transformation into a graphitic carbon cage, having a diameter of about 20 nm. The threshold electron dose was about 32 mC/cm2 at 200 keV, but the transformation is still induced at 20 keV. The transformation sequence suggested that the cage was constructed accompanied by the dynamical movement of the transiently linked sumanene molecules in order to pile up inside the shell. Thus, bond excitation in the sumanene molecules rather than a knock-on of carbon atoms seems to be the main cause of the cage transformation.

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Beam-induced graphitic carbon cage transformation from sumanene aggregates

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