Epitaxial stabilization of orthorhombic cuprous oxide films on MgO(110)

Paul R. Markworth, Robert P. H. Chang, Y. Sun, G. K. Wong, J. B. Ketterson

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Continuous epitaxial films of cuprous oxide (Cu2O) have been formed by the thermal oxidation of 1.5-μm-thick Cu metal films deposited on MgO(110) substrates. These films melted at 1118 °C in air, in agreement with equilibrium phase diagrams. Upon cooling from the liquid, a highly crystalline, epitaxial, 2.5-μm-thick Cu2O film was formed. X-ray diffraction spectroscopy revealed that the Cu2O film crystal structure was orthorhombically distorted from the bulk cubic crystal structure. High-resolution transmission electron microscopy showed that the film is coherent, and energy dispersive x-ray spectroscopy showed that interdiffusion is limited to the interface. These results suggest that a new epitaxially stabilized phase of Cu2O has been formed.

Original languageEnglish
Pages (from-to)914-921
Number of pages8
JournalJournal of Materials Research
Volume16
Issue number4
Publication statusPublished - Apr 2001

Fingerprint

Oxide films
oxide films
Stabilization
stabilization
Crystal structure
phase diagrams
Spectroscopy
crystal structure
Epitaxial films
High resolution transmission electron microscopy
metal films
Thick films
x ray spectroscopy
Phase diagrams
thick films
Metals
Crystalline materials
Cooling
cooling
X ray diffraction

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Markworth, P. R., Chang, R. P. H., Sun, Y., Wong, G. K., & Ketterson, J. B. (2001). Epitaxial stabilization of orthorhombic cuprous oxide films on MgO(110). Journal of Materials Research, 16(4), 914-921.

Epitaxial stabilization of orthorhombic cuprous oxide films on MgO(110). / Markworth, Paul R.; Chang, Robert P. H.; Sun, Y.; Wong, G. K.; Ketterson, J. B.

In: Journal of Materials Research, Vol. 16, No. 4, 04.2001, p. 914-921.

Research output: Contribution to journalArticle

Markworth, PR, Chang, RPH, Sun, Y, Wong, GK & Ketterson, JB 2001, 'Epitaxial stabilization of orthorhombic cuprous oxide films on MgO(110)', Journal of Materials Research, vol. 16, no. 4, pp. 914-921.
Markworth, Paul R. ; Chang, Robert P. H. ; Sun, Y. ; Wong, G. K. ; Ketterson, J. B. / Epitaxial stabilization of orthorhombic cuprous oxide films on MgO(110). In: Journal of Materials Research. 2001 ; Vol. 16, No. 4. pp. 914-921.
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