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Thermal stability of the prominent compensating (Al-Zn-V-Zn) center in ZnO
Linköping University, Department of Physics, Chemistry and Biology, Functional Electronic Materials. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Physics, Chemistry and Biology, Functional Electronic Materials. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-6405-9509
University of Oslo, Norway.
Linköping University, Department of Physics, Chemistry and Biology, Functional Electronic Materials. Linköping University, Faculty of Science & Engineering.
2016 (English)In: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 119, no 10, 105702- p.Article in journal (Refereed) PublishedText
Abstract [en]

Electron paramagnetic resonance spectroscopy is used to investigate the thermal stability of the Aluminum-Zinc vacancy (Al-Zn-V-Zn) complex created in bulk single crystalline ZnO by room temperature electron irradiation with an energy of 1.2 MeV. Two different stages in the annealing process at 160 and 250 degrees C with apparent activation energies of E-A1 = 1.5 +/- 0.2 eV and E-A2 = 1.9 +/- 0.2 eV, respectively, are observed. The second stage leads to the complete annealing out of the (Al-Zn-V-Zn) complex and is accompanied by restoration of the concentration of the AlZn shallow donor centers to its initial value in as-grown (i.e., not irradiated) material. The obtained results prove that the (Al-Zn-V-Zn) complex is the dominant acceptor responsible for compensation of n-type-dopants in the studied Al-containing ZnO samples. (C) 2016 AIP Publishing LLC.

Place, publisher, year, edition, pages
AMER INST PHYSICS , 2016. Vol. 119, no 10, 105702- p.
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:liu:diva-127440DOI: 10.1063/1.4943263ISI: 000372976900033OAI: oai:DiVA.org:liu-127440DiVA: diva2:925216
Note

Funding Agencies|Swedish Research Council [621-2010-3971]; Linkoping Linnaeus Initiative for Novel Functional Materials (LiLI-NFM) - Swedish Research Council [2008-6582]; Norwegian Research Council through the FRINATEK program (WEDD project)

Available from: 2016-04-30 Created: 2016-04-26 Last updated: 2016-04-30

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Stehr, Jan EricChen, WeiminBuyanova, Irina
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