We studied the oxidation of Cu(410) using x-ray photoemission spectroscopy performed with synchrotron radiation. We demonstrate that a hyperthermal O-2 molecular beam is an efficient tool to fabricate Cu oxide thin films at room temperature (RT) and even lower temperatures. At RT, mainly Cu2O forms. At T similar to 100 K, CuO nucleation also takes place; this is noteworthy, since this moiety is usually produced only at much higher T and ambient pressure.
X-Ray photoemission study of the temperature-dependent CuO Formation on Cu(410) using an energetic O2 molecular beam
VATTUONE, LUCA;SAVIO, LETIZIA;ROCCA, MARIO AGOSTINO
2007-01-01
Abstract
We studied the oxidation of Cu(410) using x-ray photoemission spectroscopy performed with synchrotron radiation. We demonstrate that a hyperthermal O-2 molecular beam is an efficient tool to fabricate Cu oxide thin films at room temperature (RT) and even lower temperatures. At RT, mainly Cu2O forms. At T similar to 100 K, CuO nucleation also takes place; this is noteworthy, since this moiety is usually produced only at much higher T and ambient pressure.
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