Nanostructures and thin films of transparent conductive oxides studied by perturbed angular correlations
authors Barbosa, MB; Goncalves, JN; Redondo-Cubero, A; Miranda, SMC; Simon, R; Kessler, P; Brandt, M; Henneberger, F; Nogales, E; Mendez, B; Johnston, K; Alves, E; Vianden, R; Araujo, JP; Lorenz, K; Correia, JG
nationality International
journal PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
author keywords CdZnO; density functional theory; Ga2O3; ion implantation; lattice location; perturbed angular correlations; ZnO
keywords HYPERFINE INTERACTIONS; BETA-GA2O3; ZNO; NANOWIRES
abstract The versatility of perturbed angular correlations (PAC) in the study of nanostructures and thin films is demonstrated, namely for the specific cases of ZnO/CdxZn(1-x)O thin films and Ga2O3 powder pellets and nanowires, examples of transparent conductive oxides. PAC measurements as a function of annealing temperature were performed after implantation of Cd-111m/Cd-111 (T-1/2 48 min) and later compared to density functional theory simulations. For ZnO, the substitution of Cd probes at Zn sites was observed, as well as the formation of a probe-defect complex. The ternary CdxZn(1-x)O (x = 0.16) showed good macroscopic crystal quality but revealed some clustering of local defects around the probe Cd atoms, which could not be annealed. In the Ga2O3 samples, the substitution of the Cd probes in the octahedral Ga-site was observed, demonstrating the potential of ion-implantation for the doping of nanowires. (C) 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
publisher WILEY-V C H VERLAG GMBH
issn 0370-1972
year published 2013
volume 250
issue 4
beginning page 801
ending page 808
digital object identifier (doi) 10.1002/pssb.201200923
web of science category Physics, Condensed Matter
subject category Physics
unique article identifier WOS:000318791900027
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journal impact factor 1.729
5 year journal impact factor 1.568
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