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journal article·2017-05-01Open access

Implantation of cobalt in SnO2 thin films studied by TDPAC

Juliana Schell, Doru C. Lupascu, Artur Wilson Carbonari, Ronaldo Domingues Mansano, Thien Thanh Dang, Reiner Vianden

AIP Advances· Volume 7· Issue 5
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Abstract

Here we report time differential perturbed angular correlation (TDPAC) results of Co-doped SnO2 thin films. Making use of stable Co and radioactive 111In implanted at the Bonn Radioisotope Separator with energies of 80 keV and 160 keV, respectively, it was possible to study the dopant incorporation and its lattice location during annealing. The hyperfine parameters have been probed as a function of temperature in vacuum. Two quadrupole interactions were observed. At high temperatures the dominant fraction for the probe nuclei can be assigned to the Cd-incorporation at the cation substitutional site in a highly disordered structure, obtained after implantation, to high crystallinity for the measurements at 873 K and 923 K. The similarity in TDPAC spectra obtained in undoped SnO gives indirect evidence that In and Co diffuse to different depths during the annealing process. Other interpretations will be discussed.
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Research context

BiomaterialsMaterials processing

OpenAlex topics: Nuclear Physics and Applications · Gas Sensing Nanomaterials and Sensors · Atomic and Subatomic Physics Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

European Organization for Nuclear Research (CERN) 1 , CH-1211 Geneva, Switzerland

University of Duisburg-Essen 2 Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), , 45141 Essen, Germany

Universidade de São Paulo 3 Instituto de Pesquisas Energéticas e Nucleares, , 05508-000 São Paulo, Brazil

Universidade de São Paulo 4 Escola Politécnica, , 05508-010 São Paulo, Brazil

Universität Bonn 5 Helmholtz-Institut für Strahlen- und Kernphysik, , Nussallee 14-16, 53115 Bonn, Germany

Funding

Conselho Nacional de Desenvolvimento Científico e Tecnológico · Bundesministerium für Bildung und Forschung · Deutscher Akademischer Austauschdienst

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