uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Intense Quantum Confinement Effects in Cu(2)O Thin Films
Show others and affiliations
2011 (English)In: The Journal of Physical Chemistry C, ISSN 1932-7447, E-ISSN 1932-7455, Vol. 115, no 30, 14839-14843 p.Article in journal (Refereed) Published
Abstract [en]

Thin Cu(2)O films in the thickness range 0.75-230 nm have been prepared on high-quality corning glass, quartz, and Si(100) substrates by radio frequency magnetron sputtering of Cu targets and subsequent oxidation in a furnace under air. Ultraviolet-visible light absorption spectroscopy experiments reveal a blue shift of the energy between the top valence and the first excited conduction sub-bands. The shift increases smoothly as the film thickness decreases. The maximum value observed for the thinnest film is very large, reaching a value of 1.2 eV. Such a shift was not easy to be observed in the past due to the very small Bohr radius of Cu(2)O. The experimental results, which indicate the presence of intense quantum confinement effects, are well-described by theoretical calculations based on the potential morphing method in the Hartree-Fock approximation.

Place, publisher, year, edition, pages
2011. Vol. 115, no 30, 14839-14843 p.
National Category
Natural Sciences
URN: urn:nbn:se:uu:diva-157012DOI: 10.1021/jp203145nISI: 000293192100050OAI: oai:DiVA.org:uu-157012DiVA: diva2:434818
Available from: 2011-08-16 Created: 2011-08-15 Last updated: 2014-04-16Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Zamani, AtiehKapaklis, Vassilios
By organisation
Materials Physics
In the same journal
The Journal of Physical Chemistry C
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 179 hits
ReferencesLink to record
Permanent link

Direct link