Implantation of cobalt in SnO2 thin films studied by TDPAC
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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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SCHELL, JULIANA; LUPASCU, DORU C.; CARBONARI, ARTUR W.; MANSANO, RONALDO D.; DANG, THIEN T.; VIANDEN, REINER. Implantation of cobalt in SnO2 thin films studied by TDPAC. AIP Advances, v. 7, n. 5, p. 055304-1 - 055304-6, 2017. DOI: 10.1063/1.4983270. Disponível em: http://repositorio.ipen.br/handle/123456789/27825. Acesso em: 30 Dec 2025.
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