Nanostructures and thin films of transparent conductive oxides studied by perturbed angular correlations

• Type: Article in International Scientific Journal
• Date: 2013

Authors

barbosa, m. b. (Author) Other; goncalves, j. n. (Author) Other; redondo-cubero, a. (Author) Other; miranda, s. m. c. (Author) Other; simon, r. (Author) Other; kessler, p. (Author) Other; brandt, m. (Author) Other; henneberger, f. (Author) Other; nogales, e. (Author) Other; mendez, b. (Author) Other; johnston, k. (Author) Other; alves, e. (Author) Other; vianden, r. (Author) Other; araujo, j. p. (Author) FCUP; lorenz, k. (Author) Other; correia, j. g. (Author) Other

Journal

Title: Physica Status Solidi (B): Basic Research

Vol. 250

Pages: 801-808

ISSN: 0370-1972

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 5 Citations

Scopus - 4 Citations

Other information

Authenticus ID: P-005-1SR

DOI: 10.1002/pssb.201200923

Abstract (EN): 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

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8