期刊
JOURNAL OF CRYSTAL GROWTH
卷 480, 期 -, 页码 78-84出版社
ELSEVIER
DOI: 10.1016/j.jcrysgro.2017.10.011
关键词
Characterization; Crystal morphology; Nanostructures; Oxides; Tungstates
资金
- Latvian National Research Program IMIS2
A comparative study of heterostructured CuO/CuWO4 core/shell nanowires and double-layer thin films was performed through X-ray diffraction, confocal micro-Raman spectroscopy and electron (SEM and TEM) microscopies. The heterostructures were produced using a two-step process, starting from a deposition of amorphous WO3 layer on top of CuO nanowires and thin films by reactive DC magnetron sputtering and followed by annealing at 650 degrees C in air. The second step induced a solid-state reaction between CuO and WO3 oxides through a thermal diffusion process, revealed by SEM-EDX analysis. Morphology evolution of core/shell nanowires and double-layer thin films upon heating was studied by electron (SEM and TEM) microscopies. A formation of CuWO4 phase was confirmed by X-ray diffraction and confocal micro-Raman spectroscopy. (C) 2017 Elsevier B.V. All rights reserved.
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