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Coming across a novel copper oxide 2D framework during the oxidation of Cu(111)

Coming across a novel copper oxide 2D framework during the oxidation of Cu(111)

News Materials for information science and electronics 22 December 2016 314 hits

Sonia MatencioEsther Barrena and Carmen Ocal*. Phys. Chem. Chem. Phys., 2016,18, 33303-33309DOI: 10.1039/C6CP07134A

Two dimensional copper oxides obtained on Cu(111) by air-enriched argon sputtering plus annealing have been measured at room temperature by means of scanning tunneling microscopy (STM) and atomic force microscopy (AFM) under ultra-high vacuum (UHV) conditions. Depending on the oxygen content different oxide frameworks and diverse stoichiometric metal/oxide interfaces exist. In particular, we report on a novel open honeycomb structure with a large unit cell which is modeled as a two dimensional network made out of Cu3O units. This lattice coexists with other oxide structures richer in oxygen and is suggested to develop towards these denser phases by oxygen incorporation.

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Related Topics: Materials for information science and electronics

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