Topography of anatase TiO2 film synthesized on LaAlO3(001)

被引：16
作者：
Sasahara, A
Droubay, TC
Chambers, SA
Uetsuka, H
Onishi, H
机构：
[1] Kanagawa Acad Sci & Technol, Surface Chem Lab, Takatsu Ku, Kawasaki, Kanagawa 2130012, Japan
[2] Pacific Natl NW Lab, Fundamental Sci Div, Richland, WA 99352 USA
来源：
NANOTECHNOLOGY | 2005年 / 16卷 / 03期
关键词：
D O I：
10.1088/0957-4484/16/3/004
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The surface of an anatase titanium dioxide (TiO2) film grown on LaAlO3(001) was observed using noncontact atomic force microscopy (NC-AFM). After cleaning with cycles of argon ion sputtering and annealing in vacuum, (1 x 4)- and (1 x 5)-reconstructed terraces appeared. In addition to the terraces, the sputter-annealed surface included many agglomerations. The presence of Tin+(n <= 3) shown by x-ray photoelectron spectroscopy indicates that the agglomerations are due to TiOx (x <= 2) species. Limited replenishment of oxygen by the substrate and the low diffusivity of the Tin+ to the substrate are possible causes for the generation of the TiOx.
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页码：S18 / S21
页数：4
相关论文
共 22 条
[1]   Epitaxial growth and properties of MBE-grown ferromagnetic Co-doped TiO2 anatase films on SrTiO3(001) and LaAlO3(001) [J].
Chambers, SA ;
Wang, CM ;
Thevuthasan, S ;
Droubay, T ;
McCready, DE ;
Lea, AS ;
Shutthanandan, V ;
Windisch, CF .
THIN SOLID FILMS, 2002, 418 (02) :197-210
[2]   Epitaxial growth and properties of thin film oxides [J].
Chambers, SA .
SURFACE SCIENCE REPORTS, 2000, 39 (5-6) :105-180
[3]   ULTRAHIGH-VACUUM METALORGANIC CHEMICAL-VAPOR-DEPOSITION GROWTH AND IN-SITU CHARACTERIZATION OF EPITAXIAL TIO2 FILMS [J].
CHEN, S ;
MASON, MG ;
GYSLING, HJ ;
PAZPUJALT, GR ;
BLANTON, TN ;
CASTRO, T ;
CHEN, KM ;
FICTORIE, CP ;
GLADFELTER, WL ;
FRANCIOSI, A ;
COHEN, PI ;
EVANS, JF .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1993, 11 (05) :2419-2429
[4]   Comparison of dissolution behavior and ionic conduction between Sr and/or Mg doped LaGaO3 and LaA1O3 [J].
Chen, TY ;
Fung, KZ .
JOURNAL OF POWER SOURCES, 2004, 132 (1-2) :1-10
[5]   The surface science of titanium dioxide [J].
Diebold, U .
SURFACE SCIENCE REPORTS, 2003, 48 (5-8) :53-229
[6]   ELECTROCHEMICAL PHOTOLYSIS OF WATER AT A SEMICONDUCTOR ELECTRODE [J].
FUJISHIMA, A ;
HONDA, K .
NATURE, 1972, 238 (5358) :37-+
[7]   Surface perspective on self-diffusion in rutile TiO2 [J].
Henderson, MA .
SURFACE SCIENCE, 1999, 419 (2-3) :174-187
[8]   Structure and stability of the anatase TiO2 (101) and (001) surfaces [J].
Hengerer, R ;
Bolliger, B ;
Erbudak, M ;
Grätzel, M .
SURFACE SCIENCE, 2000, 460 (1-3) :162-169
[9]  
Henrich V E, 1994, SURFACE SCI METAL OX
[10]   X-ray photoelectron diffraction study of an anatase thin film:: TiO2(001) [J].
Herman, GS ;
Gao, Y ;
Tran, TT ;
Osterwalder, J .
SURFACE SCIENCE, 2000, 447 (1-3) :201-211
123