Room and high-temperature scanning tunnelling microscopy and spectroscopy (HT-STM/STS) investigations of surface nanomodifications created on the TiO2 (110) surface

被引：7
|
作者：
Klusek, Z.
Busiakiewicz, A.
Datta, P. K.
Schmidt, R.
Kozlowski, W.
Kowalczyk, P.
Dabrowski, P.
Olejniczak, W.
机构：
[1] Univ Lodz, Dept Solid State Phys, Div Phys & Technol Nanometer Struct, PL-90236 Lodz, Poland
[2] Northumbria Univ, Adv Mat Res Inst, Newcastle Upon Tyne NE1 8ST, Tyne & Wear, England
[3] Univ Cambridge, Dept Mat Sci, Cambridge CB2 3QZ, England
来源：
SURFACE SCIENCE | 2007年 / 601卷 / 06期
关键词：
scanning tunnelling microscopy; scanning tunnelling spectroscopy; surface states; titanium oxide;
D O I：
10.1016/j.susc.2007.01.011
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
High-temperature scanning tunnelling microscopy, scanning tunnelling spectroscopy and current imaging tunnelling spectroscopy (HT-STM/STS/CITS) were used to study the topographic and electronic structures changes due to surface modifications of the TiO2(110) surface caused by the STM tip. In situ high-temperature STM results showed that the created modifications were stable even at elevated temperatures. The STS/CITS results showed the presence of energy gap below the Fermi level on the untreated regions. The disappearance of energy gap below the Fermi level on the modifications created by the tip was observed. It is assumed that the presence of the tip can change the chemical stoichiometry of the surface from TiO2-x towards Ti2O3. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：1513 / 1520
页数：8
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