Defect properties of ZnO nanowires revealed from an optically detected magnetic resonance study
2013 (English)In: Nanotechnology, ISSN 0957-4484, E-ISSN 1361-6528, Vol. 24, no 1, 015701- p.Article in journal (Refereed) Published
Optically detected magnetic resonance (ODMR) complemented by photoluminescence measurements is used to evaluate optical and defect properties of ZnO nanowires (NWs) grown by rapid thermal chemical vapor deposition. By monitoring visible emissions, several grown-in defects are revealed and attributed to Zn vacancies, shallow (but not effective mass) donor and exchange-coupled pairs of Zn vacancies and Zn interstitials. It is also found that the intensity of the donor-related ODMR signals is substantially lower in the NWs compared with that in bulk ZnO. This may indicate that formation of native donors is suppressed in NWs, which is beneficial for achieving p-type conductivity.
Place, publisher, year, edition, pages
Institute of Physics , 2013. Vol. 24, no 1, 015701- p.
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-87238DOI: 10.1088/0957-4484/24/1/015701ISI: 000312272500023OAI: oai:DiVA.org:liu-87238DiVA: diva2:587258
Funding Agencies|Swedish Research Council|621-2010-3971|World-Class University Programme through NRF||Korean government (MEST)|R31-10026|Swedish government strategic research area in materials science on functional materials at Linkoping University|2009-00971|2013-01-142013-01-142015-05-28