Preparation Conditions of Pentacene Monolayer on Graphite Surface Studied by Photoemission Electron Microscopy
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概要
- 論文の詳細を見る
We studied a method for fabricating a uniform pentacene monolayer on graphite surfaces by UV-excited photoemission electron microscopy (UV-PEEM) and low-energy electron microscopy (LEEM). The film growth and the effects of its heat treatment were investigated in situ by UV-PEEM and LEEM. The results imply that for as-grown films, (i) a nominal monolayer film consists of not only monolayer domains with flat-lying molecules but also islands of stacks of tilting molecules mainly grown at the defects on the substrate surface, and (ii) in the multilayer, the molecules on the first monolayer are stacked with their long axes tilted. Heat treatment of the multilayer film at ${\sim}375$ K causes the domains/islands of the tilting molecules to sublimate more rapidly than those in the monolayer, resulting in a residual uniform monolayer with a flat-lying molecular orientation without multilayer islands; this monolayer exhibited a sharp highest-occupied-molecular-orbital peak along with the resolution of hole-vibration coupling satellites in high-resolution UV photoemission spectra.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2007-04-15
著者
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Okudaira Koji
Faculty Of Engineering Chiba University
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KERA Satoshi
Faculty of Engineering, Chiba University
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UENO Nobuo
Faculty of Engineering, Chiba University
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Shionoiri Masakazu
Graduate School Of Science And Technology Chiba University
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Kozasa Momoko
Graduate School Of Science And Technology Chiba University
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Ueno Nobuo
Faculty of Engineering, Chiba University, Chiba 263-8522, Japan
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Kozasa Momoko
Graduate School of Science and Technology, Chiba University, Chiba 263-8522, Japan
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Shionoiri Masakazu
Graduate School of Science and Technology, Chiba University, Chiba 263-8522, Japan
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Okudaira Koji
Faculty of Engineering, Chiba University, Chiba 263-8522, Japan
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Kera Satoshi
Faculty of Engineering, Chiba University, Chiba 263-8522, Japan
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