Morphological evolution of solution-grown cobalt-doped ZnO nanostructures and their properties
- Authors
- Qui Thanh Hoai Ta; Namgung, Gitae; Noh, Jin-Seo
- Issue Date
- 16-May-2018
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Co-doped ZnO nanostructures; Low-temperature solution method; Morphology; Crystal structure; Magnetic property
- Citation
- CHEMICAL PHYSICS LETTERS, v.700, pp.1 - 6
- Journal Title
- CHEMICAL PHYSICS LETTERS
- Volume
- 700
- Start Page
- 1
- End Page
- 6
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/3764
- DOI
- 10.1016/j.cplett.2018.04.002
- ISSN
- 0009-2614
- Abstract
- It is demonstrated that the morphology of Co-doped ZnO nanostructures can be easily altered by controlling Co-doping concentration. A facile low-temperature solution method was employed for the nanosynthesis. The morphology of the nanostructures changed from nanorods to nanoparticles, and to needle-like structures as the molar ratio of Co2+ ions increased. No noticeable changes in structural and optical properties were caused by the low concentration of Co-doping, while a magnetic transition was observed. At the very low Co concentrations below 0.3 at%, the nanostructures showed diamagnetism, whereas a paramagnetic behavior was observed at a concentration of 2.5 at%. (C) 2018 Elsevier B.V. All rights reserved.
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