Cd and In-doping in thin film SnO2 | Zendy

Juliana Schell | Zendy; Doru C. Lupascu | Zendy; A. W. Carbonari | Zendy; Ronaldo Domingues Mansano | Zendy; R. S. Freitas | Zendy; J. N. Gonçalves | Zendy; Thien Thanh Dang | Zendy; R. Vianden | Zendy

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Cd and In-doping in thin film SnO2

Author(s) -

Juliana Schell,

Doru C. Lupascu,

A. W. Carbonari,

Ronaldo Domingues Mansano,

R. S. Freitas,

J. N. Gonçalves,

Thien Thanh Dang,

R. Vianden

Publication year - 2017

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.4983669

Subject(s) - hyperfine structure , electric field gradient , doping , impurity , electric field , thin film , atomic physics , spectral line , materials science , lattice (music) , condensed matter physics , molecular physics , chemistry , analytical chemistry (journal) , nanotechnology , physics , organic chemistry , quantum mechanics , astronomy , chromatography , acoustics

In this paper, we investigate the effects of doping in the local structure of SnO2 by measuring the hyperfine interactions at impurity nuclei using the Time Differential Perturbed Gamma-Gamma Angular Correlation (TDPAC) method in addition to density functional theory simulations. The hyperfine field parameters have been probed as a function of the temperature in thin film samples. The experimental results reveal that 117Cd/In and 111In/Cd are incorporated and stabilized in the SnO2 lattice replacing the cationic site. Significant differences in the electric field gradient were observed from TDPAC measurements with both the probe nuclei. Furthermore, the absence of strongly damped spectra further indicates that implanted Cd atoms (for 117Cd/In probe nuclei measurements) easily occupy regular substitutional Sn sites with good stability. The simulated value for the electric field gradient obtained with the first oxygen neighbor removed is closer to the experimental value observed for 117Cd, which also indicates this configuration as stable and present in the sample

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