Photostimulated desorption of NO chemisorbed on Pt(100) at 193 nm

Kazuhiko Mase, Seigi Mizuno, Masamichi Yamada, Lchiro Doi, Tohru Katsumi, Shuntaro Watanabe, Yohji Achiba, Yoshitada Murata

研究成果: ジャーナルへの寄稿記事

25 引用 (Scopus)

抄録

Photostimulated desorption of NO chemisorbed on a Pt ( 100) surface at 80 and 300 K has been studied with an ArF excimer laser (λ = 193 nm) and a positive-ion measurement system. NO+ is the only ion species observed when a NO-saturated Pt( 100) surface is irradiated with laser light. The NO+ yield is proportional to the third power of laser fluence. The translational-energy distribution of the NO+ ions is independent of laser fluence. We propose a two-step model as the most probable NO+ formation mechanism. The first step is desorption of neutral NO induced by valence-electron excitation in chemisorbed NO with one-photon absorption. Then, the desorbed NO is ionized in the vicinity of the surface via the two-photon nonresonant ionization process. Relatively large desorption cross sections estimated from the decay of the NO+ yield support the above NO + formation mechanism.

元の言語英語
ページ(範囲)590-597
ページ数8
ジャーナルThe Journal of Chemical Physics
91
発行部数1
DOI
出版物ステータス出版済み - 1 1 1989
外部発表Yes

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Desorption
desorption
Lasers
fluence
Photons
lasers
photons
Excimer lasers
positive ions
excimer lasers
Ionization
energy distribution
ions
Positive ions
Ions
valence
ionization
Electrons
cross sections
decay

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

これを引用

Mase, K., Mizuno, S., Yamada, M., Doi, L., Katsumi, T., Watanabe, S., ... Murata, Y. (1989). Photostimulated desorption of NO chemisorbed on Pt(100) at 193 nm. The Journal of Chemical Physics, 91(1), 590-597. https://doi.org/10.1063/1.457445

Photostimulated desorption of NO chemisorbed on Pt(100) at 193 nm. / Mase, Kazuhiko; Mizuno, Seigi; Yamada, Masamichi; Doi, Lchiro; Katsumi, Tohru; Watanabe, Shuntaro; Achiba, Yohji; Murata, Yoshitada.

:: The Journal of Chemical Physics, 巻 91, 番号 1, 01.01.1989, p. 590-597.

研究成果: ジャーナルへの寄稿記事

Mase, K, Mizuno, S, Yamada, M, Doi, L, Katsumi, T, Watanabe, S, Achiba, Y & Murata, Y 1989, 'Photostimulated desorption of NO chemisorbed on Pt(100) at 193 nm', The Journal of Chemical Physics, 巻. 91, 番号 1, pp. 590-597. https://doi.org/10.1063/1.457445
Mase, Kazuhiko ; Mizuno, Seigi ; Yamada, Masamichi ; Doi, Lchiro ; Katsumi, Tohru ; Watanabe, Shuntaro ; Achiba, Yohji ; Murata, Yoshitada. / Photostimulated desorption of NO chemisorbed on Pt(100) at 193 nm. :: The Journal of Chemical Physics. 1989 ; 巻 91, 番号 1. pp. 590-597.
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abstract = "Photostimulated desorption of NO chemisorbed on a Pt ( 100) surface at 80 and 300 K has been studied with an ArF excimer laser (λ = 193 nm) and a positive-ion measurement system. NO+ is the only ion species observed when a NO-saturated Pt( 100) surface is irradiated with laser light. The NO+ yield is proportional to the third power of laser fluence. The translational-energy distribution of the NO+ ions is independent of laser fluence. We propose a two-step model as the most probable NO+ formation mechanism. The first step is desorption of neutral NO induced by valence-electron excitation in chemisorbed NO with one-photon absorption. Then, the desorbed NO is ionized in the vicinity of the surface via the two-photon nonresonant ionization process. Relatively large desorption cross sections estimated from the decay of the NO+ yield support the above NO + formation mechanism.",
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AU - Mase, Kazuhiko

AU - Mizuno, Seigi

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AU - Doi, Lchiro

AU - Katsumi, Tohru

AU - Watanabe, Shuntaro

AU - Achiba, Yohji

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N2 - Photostimulated desorption of NO chemisorbed on a Pt ( 100) surface at 80 and 300 K has been studied with an ArF excimer laser (λ = 193 nm) and a positive-ion measurement system. NO+ is the only ion species observed when a NO-saturated Pt( 100) surface is irradiated with laser light. The NO+ yield is proportional to the third power of laser fluence. The translational-energy distribution of the NO+ ions is independent of laser fluence. We propose a two-step model as the most probable NO+ formation mechanism. The first step is desorption of neutral NO induced by valence-electron excitation in chemisorbed NO with one-photon absorption. Then, the desorbed NO is ionized in the vicinity of the surface via the two-photon nonresonant ionization process. Relatively large desorption cross sections estimated from the decay of the NO+ yield support the above NO + formation mechanism.

AB - Photostimulated desorption of NO chemisorbed on a Pt ( 100) surface at 80 and 300 K has been studied with an ArF excimer laser (λ = 193 nm) and a positive-ion measurement system. NO+ is the only ion species observed when a NO-saturated Pt( 100) surface is irradiated with laser light. The NO+ yield is proportional to the third power of laser fluence. The translational-energy distribution of the NO+ ions is independent of laser fluence. We propose a two-step model as the most probable NO+ formation mechanism. The first step is desorption of neutral NO induced by valence-electron excitation in chemisorbed NO with one-photon absorption. Then, the desorbed NO is ionized in the vicinity of the surface via the two-photon nonresonant ionization process. Relatively large desorption cross sections estimated from the decay of the NO+ yield support the above NO + formation mechanism.

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