Photoelectron spectroscopy of tin and lead cluster anions: Application of halogen-doping method

Y. Negishi, H. Kawamata, Atsushi Nakajima, K. Kaya

研究成果: Article

40 引用 (Scopus)

抄録

Electronic properties of tin (Sn) and lead (Pb) cluster anions were studied using photoelectron spectroscopy (PES) with a magnetic bottle-type electron spectrometer, where the feasibility of a halogen-doping method we recently developed was explored. The binary cluster anions containing a chlorine atom (Cl) were produced by a laser vaporization of a target rod in a He carrier gas mixed with a small amount of CCl4 gas. Comparing the PES of SnnCl- and those of Sn-n, it was found that the doped Cl atom in SnnCl- deprives each Sn-n cluster of the excess electron without any serious rearrangement of the Snn framework, which is similar to our previous work on SinF- and GenF-. The halogen-doping method enables us to reveal the HOMO-LUMO gap of the corresponding neutral cluster of the Snn clusters, showing that the Snn clusters are semiconductor clusters, especially below n=30, similar to the Sin and the Gen clusters. For the Pbn clusters, however, the halogen-doping method was inapplicable, which implies that the Pbn clusters are different from the other group-14 clusters, probably exhibiting a metallic nature.

元の言語English
ページ(範囲)117-125
ページ数9
ジャーナルJournal of Electron Spectroscopy and Related Phenomena
106
発行部数2-3
出版物ステータスPublished - 2000 2

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Halogens
Tin
Photoelectron spectroscopy
halogens
Anions
tin
Negative ions
Doping (additives)
photoelectron spectroscopy
anions
Gases
Atoms
Electrons
Chlorine
Bottles
Vaporization
Electronic properties
Spectrometers
Lead
Semiconductor materials

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics
  • Surfaces and Interfaces

これを引用

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abstract = "Electronic properties of tin (Sn) and lead (Pb) cluster anions were studied using photoelectron spectroscopy (PES) with a magnetic bottle-type electron spectrometer, where the feasibility of a halogen-doping method we recently developed was explored. The binary cluster anions containing a chlorine atom (Cl) were produced by a laser vaporization of a target rod in a He carrier gas mixed with a small amount of CCl4 gas. Comparing the PES of SnnCl- and those of Sn-n, it was found that the doped Cl atom in SnnCl- deprives each Sn-n cluster of the excess electron without any serious rearrangement of the Snn framework, which is similar to our previous work on SinF- and GenF-. The halogen-doping method enables us to reveal the HOMO-LUMO gap of the corresponding neutral cluster of the Snn clusters, showing that the Snn clusters are semiconductor clusters, especially below n=30, similar to the Sin and the Gen clusters. For the Pbn clusters, however, the halogen-doping method was inapplicable, which implies that the Pbn clusters are different from the other group-14 clusters, probably exhibiting a metallic nature.",
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T1 - Photoelectron spectroscopy of tin and lead cluster anions

T2 - Application of halogen-doping method

AU - Negishi, Y.

AU - Kawamata, H.

AU - Nakajima, Atsushi

AU - Kaya, K.

PY - 2000/2

Y1 - 2000/2

N2 - Electronic properties of tin (Sn) and lead (Pb) cluster anions were studied using photoelectron spectroscopy (PES) with a magnetic bottle-type electron spectrometer, where the feasibility of a halogen-doping method we recently developed was explored. The binary cluster anions containing a chlorine atom (Cl) were produced by a laser vaporization of a target rod in a He carrier gas mixed with a small amount of CCl4 gas. Comparing the PES of SnnCl- and those of Sn-n, it was found that the doped Cl atom in SnnCl- deprives each Sn-n cluster of the excess electron without any serious rearrangement of the Snn framework, which is similar to our previous work on SinF- and GenF-. The halogen-doping method enables us to reveal the HOMO-LUMO gap of the corresponding neutral cluster of the Snn clusters, showing that the Snn clusters are semiconductor clusters, especially below n=30, similar to the Sin and the Gen clusters. For the Pbn clusters, however, the halogen-doping method was inapplicable, which implies that the Pbn clusters are different from the other group-14 clusters, probably exhibiting a metallic nature.

AB - Electronic properties of tin (Sn) and lead (Pb) cluster anions were studied using photoelectron spectroscopy (PES) with a magnetic bottle-type electron spectrometer, where the feasibility of a halogen-doping method we recently developed was explored. The binary cluster anions containing a chlorine atom (Cl) were produced by a laser vaporization of a target rod in a He carrier gas mixed with a small amount of CCl4 gas. Comparing the PES of SnnCl- and those of Sn-n, it was found that the doped Cl atom in SnnCl- deprives each Sn-n cluster of the excess electron without any serious rearrangement of the Snn framework, which is similar to our previous work on SinF- and GenF-. The halogen-doping method enables us to reveal the HOMO-LUMO gap of the corresponding neutral cluster of the Snn clusters, showing that the Snn clusters are semiconductor clusters, especially below n=30, similar to the Sin and the Gen clusters. For the Pbn clusters, however, the halogen-doping method was inapplicable, which implies that the Pbn clusters are different from the other group-14 clusters, probably exhibiting a metallic nature.

KW - Cluster anions

KW - Halogen-doping

KW - Lead

KW - Photoelectron spectroscopy

KW - Tin

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