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Galan Estella, LuisAuthorSoriano De Arpe, LeonardoAuthorGalán LAuthorRueda FAuthor

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Oxidation of Cs2Te with superficial Te clusters studied by XPS

Publicated to:SURFACE SCIENCE. 251-252 (C): 1075-1080 - 1991-07-01 251-252(C), DOI: 10.1016/0039-6028(91)91153-O

Authors: Soriano L; Galán L; Rueda F

Affiliations

Universidad Autónoma de Madrid - Author

Abstract

The oxidation of alkali-metal (Cs, K) tellurides at room temperature and low oxygen pressure has been studied by X-ray photoelectron and Auger electron spectroscopies (XPS, XAES). The oxidation kinetics is faster than logarithmic and does not saturate for the exposures studied, while a migration of alkali ions to the surface is detected. These effects are strongly enhanced in a sample of overcaesiated telluride with elemental Te clusters on the surface. A strong gradient of the oxidation state (Te2-, Te0, Te4+, Te6+) is formed in a depth of the order of the XPS analysis depth. The oxygen concentration shows a similar gradient. Cs2O2 is formed too. The surface layer remains as Cs2Te; the Te clusters also remain unreactive at the surface; they only transform into telluride when heavy oxidation of the Cs2Te film is reached. © 1991.

Keywords

Astronomia / físicaChemistry, physicalCiências agrárias iCiências biológicas iCondensed matter physicsEngenharias iiEngenharias iiiEngenharias ivInterdisciplinarMateriaisMaterials chemistryMedicina iiPhysics, condensed matterQuímicaSurfaces and interfacesSurfaces, coatings and films

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2025-06-15:

  • Open Alex: 5
  • Google Scholar: 6
  • WoS: 5
  • Scopus: 5
  • OpenCitations: 4

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-06-15:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 4 (PlumX).

Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Soriano L) and Last Author (RUEDA SANCHEZ, FERNANDO).