Irradiation of CW-CO2 laser on a powder target. Formation of fullerene film from graphite powder

Seisuke Kano; Masamichi Kohno; Kaname Sakiyama; Shinya Sasaki; Nobuhiro Aya; Hirofumi Shimura

doi:10.1016/S0009-2614(03)01326-5

Irradiation of CW-CO₂ laser on a powder target. Formation of fullerene film from graphite powder

Seisuke Kano, Masamichi Kohno, Kaname Sakiyama, Shinya Sasaki, Nobuhiro Aya, Hirofumi Shimura

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

A process was investigated to irradiate a continuous-wave CO₂ laser (4.5 kW) on graphite powder with a mean diameter of 5 μm in a flow of Ar or He gas at 30 or 200 Torr. The film produced on a Ni substrate in the Ar flow at 200 Torr showed the Raman bands of C₆₀ and C₇₀, and the C₆₀/C₇₀ ratio was estimated to be 5/1 by MALDI-TOF mass spectrometry. The film formation process is discussed on the basis of an analysis of laser-irradiated powder, which included 0.01 wt% of C₆₀, by UV-Vis absorption, and by observations of the plumes and SEM images.

Original language	English
Pages (from-to)	474-480
Number of pages	7
Journal	Chemical Physics Letters
Volume	378
Issue number	5-6
DOIs	https://doi.org/10.1016/S0009-2614(03)01326-5
Publication status	Published - Sep 12 2003
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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10.1016/S0009-2614(03)01326-5

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title = "Irradiation of CW-CO2 laser on a powder target. Formation of fullerene film from graphite powder",

abstract = "A process was investigated to irradiate a continuous-wave CO2 laser (4.5 kW) on graphite powder with a mean diameter of 5 μm in a flow of Ar or He gas at 30 or 200 Torr. The film produced on a Ni substrate in the Ar flow at 200 Torr showed the Raman bands of C60 and C70, and the C60/C70 ratio was estimated to be 5/1 by MALDI-TOF mass spectrometry. The film formation process is discussed on the basis of an analysis of laser-irradiated powder, which included 0.01 wt% of C60, by UV-Vis absorption, and by observations of the plumes and SEM images.",

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T1 - Irradiation of CW-CO2 laser on a powder target. Formation of fullerene film from graphite powder

AU - Kano, Seisuke

AU - Kohno, Masamichi

AU - Sakiyama, Kaname

AU - Sasaki, Shinya

AU - Aya, Nobuhiro

AU - Shimura, Hirofumi

PY - 2003/9/12

Y1 - 2003/9/12

N2 - A process was investigated to irradiate a continuous-wave CO2 laser (4.5 kW) on graphite powder with a mean diameter of 5 μm in a flow of Ar or He gas at 30 or 200 Torr. The film produced on a Ni substrate in the Ar flow at 200 Torr showed the Raman bands of C60 and C70, and the C60/C70 ratio was estimated to be 5/1 by MALDI-TOF mass spectrometry. The film formation process is discussed on the basis of an analysis of laser-irradiated powder, which included 0.01 wt% of C60, by UV-Vis absorption, and by observations of the plumes and SEM images.

AB - A process was investigated to irradiate a continuous-wave CO2 laser (4.5 kW) on graphite powder with a mean diameter of 5 μm in a flow of Ar or He gas at 30 or 200 Torr. The film produced on a Ni substrate in the Ar flow at 200 Torr showed the Raman bands of C60 and C70, and the C60/C70 ratio was estimated to be 5/1 by MALDI-TOF mass spectrometry. The film formation process is discussed on the basis of an analysis of laser-irradiated powder, which included 0.01 wt% of C60, by UV-Vis absorption, and by observations of the plumes and SEM images.

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