liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Microstructure of ZnO films synthesized on MgAl2O4 from low-temperature aqueous solution: growth and post-annealing
Technion Israel Institute Technology, Israel.
University of Calif Santa Barbara, CA 93106 USA.
Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics. Linköping University, Faculty of Science & Engineering.
University of Calif Santa Barbara, CA 93106 USA.
Show others and affiliations
2013 (English)In: Journal of Materials Science, ISSN 0022-2461, E-ISSN 1573-4803, Vol. 48, no 4, 1614-1622 p.Article in journal (Refereed) Published
Abstract [en]

The microstructure of ZnO films synthesized from low-temperature (90 degrees C) aqueous solution on (111) MgAl2O4 single crystal substrates was characterized by X-ray diffraction, high-resolution scanning electron microscopy, conventional and high-resolution transmission electron microscopy. To examine the thermally activated microstructural evolution of the ZnO, both as-deposited and annealed films were characterized. The ZnO films were confirmed to have a ZnO[10 (1) over bar0](0001)parallel to MgAl2O4[011](1 (1) over bar1) orientation relationship, with Zn polarity normal to the surface. Despite their highly oriented nature, the ZnO films have a columnar grain structure with low-angle (less than2.5 degrees) grain boundaries. In addition to lattice dislocations forming low-angle grain boundaries, threading dislocations were observed, emanating from the interface with the substrate. In annealed films, thermally generated voids were observed and appeared to preferentially form at grain boundaries and dislocations. Based on these characterization results, mechanisms are proposed for film growth and microstructural evolution. Finally, the diffusion coefficient of vacancies via dislocations at grain boundaries in the produced ZnO films was estimated.

Place, publisher, year, edition, pages
Springer Verlag (Germany) , 2013. Vol. 48, no 4, 1614-1622 p.
National Category
Condensed Matter Physics
URN: urn:nbn:se:liu:diva-118555DOI: 10.1007/s10853-012-6918-9ISI: 000312906000024OAI: diva2:815507

Funding Agencies|United States-Israel Binational Science Foundation (BSF) [2008103]; Russell Berrie Nanotechnology Institute at the Technion; Irwin and Joan Jacobs Fellowship; United States National Science Foundation [095254]

Available from: 2015-06-01 Created: 2015-06-01 Last updated: 2015-06-10

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Garbrecht, Magnus
By organisation
Thin Film PhysicsFaculty of Science & Engineering
In the same journal
Journal of Materials Science
Condensed Matter Physics

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: 50 hits
ReferencesLink to record
Permanent link

Direct link