The preparation, orientation and electronic structure of poly(p-phenylenevinylene) (PPV) monolayers on silicon surfaces

M. Keil, A. Rajagopal, S. Yokoyama, H. Sotobayashi, A. M. Bradshaw, M. A. Kakimoto, Y. Imai

研究成果: ジャーナルへの寄稿学術誌査読

2 被引用数 (Scopus)

抄録

Monolayers of poly(p-phenylenevinylene) (PPV) have been prepared on oxidized and hydrogen-terminated silicon surfaces. The hydrogen-terminated silicon surface was made by wet chemical treatment of Si{111}. The one monolayer film of an amphiphilic PPV precursor polymer was prepared with the Langmuir-Blodgett (LB) technique and thermally converted to PPV. Photoemission and X-ray absorption spectroscopy were used to follow the conversion process which is completed between 545 K and 575 K depending on the substrate. Valence level photoemission was also used to study the electronic structure of the polymer monolayer which is characterized by a conjugated π system. Additionally, X-ray absorption spectroscopy at the carbon K-edge showed that at least on oxidized silicon the polymer is oriented with its phenylene rings preferentially parallel to the surface.

本文言語英語
ページ(範囲)87-102
ページ数16
ジャーナルZeitschrift fur Physikalische Chemie
202
1-2
DOI
出版ステータス出版済み - 1997
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 物理化学および理論化学

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