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Density-controlled growth and passivation of ZnO nanorod arrays by electrodeposition
- Source :
- Thin Solid Films. 638:426-432
- Publication Year :
- 2017
- Publisher :
- Elsevier BV, 2017.
-
Abstract
- Here we established a simple electrochemical method of synthesizing ZnO nanomaterials with high quality and the ability to control the nanostructures' density For ZnO nanorod growth, a thin layer of Al doped ZnO (AZO) was deposited on glass substrates and ZnO nanorod arrays were grown on these substrates from aqueous solution containing Zn(NO 3 ) 2 and NH 4 NO 3 . It was found that the density, morphology, and quality of the nanorod arrays can be controlled by changing the applied potentials or the concentration of NH 4 NO 3 in the solution as growing and etching were carried out simultaneously. Moreover, the nanorod density decrease resulted in an improvement of the quality of the as-grown nanorods. Scanning electron microscope (SEM), transmission electron microscopy (TEM), photoluminescence and X-ray diffraction (XRD) have been used to characterize the samples. The density of ZnO nanorods can be controlled by varying the concentrations of the precursor solutions or applied potentials. Passivated low-density ZnO nanorod arrays with high quality were fabricated.
- Subjects :
- Materials science
Passivation
Scanning electron microscope
Doping
Metals and Alloys
Nanotechnology
Crystal growth
02 engineering and technology
Surfaces and Interfaces
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Nanomaterials
Chemical engineering
Transmission electron microscopy
Materials Chemistry
Nanorod
Thin film
0210 nano-technology
Subjects
Details
- ISSN :
- 00406090
- Volume :
- 638
- Database :
- OpenAIRE
- Journal :
- Thin Solid Films
- Accession number :
- edsair.doi...........d4b34f6dfa8ca0ca404934163f7c0ee6