Individual na adatoms on TiO2(110)-(1 × 1) surface observed using kelvin probe force microscope

被引：0
|
作者：
Sasahara, Akira [1 ,2 ]
Uetsuka, Hiroshi [1 ,3 ]
Onishi, Hiroshi [1 ,2 ]
机构：
[1] Surface Chemistry Laboratory, Kanagawa Acad. of Sci. and Technol., KSP East 404, 3-2-1 Sakado, Kawasaki, Kanagawa 213-0012, Japan
[2] Faculty of Science, Kobe University, A129, 1-1 Rokkodai, Nada-ku, Kobe, Hyogo 657-8501, Japan
[3] Technology Research Department, General Technology Division, Central Japan Railway Company, 1545-33 Ohyama, Komaki, Aichi 485-0801, Japan
来源：
Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers | 2004年 / 43卷 / 7 B期
关键词：
Charge transfer - Electric potential - Microscopes - Scanning tunneling microscopy - Sodium - Surface topography - X ray photoelectron spectroscopy;
D O I：
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中图分类号：
学科分类号：
摘要：
The work function of Na-deposited TiO2(110) surfaces was mapped using a Kelvin probe force microscope (KPFM). Individual Na adatoms were identified as topographic protrusions on atomically flat terraces of the TiO2 surface. The work function locally decreased by 0.1-0.5 eV on each adatom. The observed modulations of work function were interpreted with the electric permanent dipole moment caused by the electron transfer from the adatom to the substrate.
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页码：4647 / 4650
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