Oxygen-deficient SnO2(110): a STM, LEED and XPS study
2001 (English)In: Surface Science, ISSN 0039-6028, E-ISSN 1879-2758, Vol. 477, no 1, 50-58 p.Article in journal (Refereed) Published
The reconstruction process of SnO2(110) was investigated by scanning tunneling microscopy (STM), low energy electron diffraction (LEED) and X-ray photoelectron spectroscopy (XPS). The high-temperature 1 x 1 reconstruction could be identified as an intermediate face, transferable either to the 1 x 2 surface by annealing to higher temperature or back to the 4 x 1 reconstruction by annealing again at lower temperature. In this way, a new method to prepare well-ordered 4 x 1 terminated surfaces is introduced and the O/Sn ratio as well as the core-level positions of Sn 3d and O 1s were traced by XPS over a temperature range of 700-1200 K on freshly sputtered and on low-temperature long-time annealed SnO2(110). STM images of the 1 x 1 surface show a new structure of in-plane oxygen, ordered locally in zigzag rows that contribute to the LEED pattern as a very diffuse 2 x 1 intensity.
Place, publisher, year, edition, pages
2001. Vol. 477, no 1, 50-58 p.
scanning tunneling microscopy, low energy electron diffraction (LEED), photoelectron spectroscopy, tin oxides, single crystal surfaces, single-crystals, formic-acid, surface, reconstructions, decomposition, sno2, 4x1, pd
IdentifiersURN: urn:nbn:se:kth:diva-20519DOI: 10.1016/S0039-6028(01)00705-1ISI: 000168024000007OAI: oai:DiVA.org:kth-20519DiVA: diva2:339214
QC 20100525 QC 201111292010-08-102010-08-102011-11-29Bibliographically approved