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Oxygen-deficient SnO2(110): a STM, LEED and XPS study
KTH, Tidigare Institutioner, Fysik.
KTH, Tidigare Institutioner, Fysik.ORCID-id: 0000-0003-1631-4293
KTH, Tidigare Institutioner, Fysik.
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2001 (Engelska)Ingår i: Surface Science, ISSN 0039-6028, E-ISSN 1879-2758, Vol. 477, nr 1, s. 50-58Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

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.

Ort, förlag, år, upplaga, sidor
2001. Vol. 477, nr 1, s. 50-58
Nyckelord [en]
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
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URN: urn:nbn:se:kth:diva-20519DOI: 10.1016/S0039-6028(01)00705-1ISI: 000168024000007OAI: oai:DiVA.org:kth-20519DiVA, id: diva2:339214
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QC 20100525 QC 20111129Tillgänglig från: 2010-08-10 Skapad: 2010-08-10 Senast uppdaterad: 2017-12-12Bibliografiskt granskad

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Weissenrieder, Jonas

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