Related Experiment Video
Updated: May 19, 2026
Improved Heterojunction Quality in Cu2O-based Solar Cells Through the Optimization of Atmospheric Pressure Spatial Atomic Layer Deposited
Zn1-xMgxO
Published on: July 31, 2016
The temperature dependence of Cu2O formation on a Cu(110) surface with an energetic O2 molecular beam
M Hashinokuchi1, A Yoshigoe, Y Teraoka
1Renovation Center of Instruments for Science Education and Technology, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka, 567-0047, Japan.
Abstract:
We report a study of the surface temperature (T(s)) dependence of Cu(2)O formation on a Cu(110) surface induced by a hyperthermal O(2) molecular beam (HOMB), using x-ray photoemission spectroscopy in conjunction with synchrotron radiation. From the T(s) dependence of the O uptake curves, the direct dissociative adsorption process mainly contributes to the formation of the p(2 × 1)-O structure with an O coverage (Θ) of 0.5 ML for 2.2 eV HOMB incidence. On the other hand, the rate of oxidation at Θ > 0.5 ML, particularly in Cu(2)O formation, strongly depends on the T(s). Thicker Cu(2)O islands were found inhomogeneously at 400 and 500 K, suggesting the dominant role of the migration of Cu atoms in the Cu(2)O formations on the Cu(110) surface.
