Valence-Band Structures of Quasi-One-Dimensional Crystals C<FONT SIZE="-1"><SUB>5</SUB></FONT>H<FONT SIZE="-1"><SUB>10</SUB></FONT>NH<FONT SIZE="-1"><SUB>2</SUB></FONT>PbX<FONT SIZE="-1"><SUB>3</SUB></FONT> [X = I, Br]

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  • Azuma Junpei
    Department of Physics, Kyoto University, Sakyo, Kyoto 606-8502
  • Tanaka Koichiro
    Department of Physics, Kyoto University, Sakyo, Kyoto 606-8502
  • Kamada Masao
    UVSOR Facility, Institute for Molecular Science, Myodaiji, Okazaki 444-8585
  • Kan'no Ken-ichi
    Department of Material Science and Chemistry, Wakayama University, Sakaedani, Wakayama 640-8510

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  • Valence-Band Structures of Quasi-One-Dimensional Crystals C5H10NH2PbX3[X=I, Br]
  • Valence-Band Structures of Quasi-One-Dimensional Crystals C<sub>5</sub>H<sub>10</sub>NH<sub>2</sub>PbX<sub>3</sub>[X = I, Br]

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Abstract

X-ray and ultra-violet photoemission spectra have been measured to study the valence-band structures of piperidinium trihaloplumbates C5H10NH2PbX3 [X = I, Br], which have natural nano-scale one-dimensional structures. The valence-band spectra of lead halides, which have the three-dimensional structures, are also reported for comparison. The partial densities of states related to the constituent ions and molecules were obtained with the comparison between the XPS and UPS. Empirical LCAO calculations were also carried out to analyze the experimental results. The quantum-well-like electronic structure in C5H10NH2PbX3 [X = I, Br] is proposed.

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