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Structural and optical properties of hydrothermally grown zinc oxide nanorods on polyethersulfone substrates as a function of the growth temperature and duration
- Source :
- Thin Solid Films. 520:2449-2454
- Publication Year :
- 2012
- Publisher :
- Elsevier BV, 2012.
-
Abstract
- Zinc oxide (ZnO) nanorods were grown on polyethersulfone substrates with a seed layer by hydrothermal synthesis. The effects of the growth temperature and duration on the structural and optical properties of the ZnO nanorods were investigated by X-ray diffraction, field emission scanning electron microscope and photoluminescence measurements. Improvement of the structural properties was confirmed when the ZnO nanorods were grown at a moderate thermal energy. Thermal energies that were too high or too low resulted in structural degradation: low thermal energies did not provide enough energy for the ZnO growth, and high thermal energies contributed to improper growth by creating an uncommon flake-like structure. Photoluminescence measurements showed that the near-band-edge emission to deep-level emission peak ratio increases with increasing growth temperature at growth duration of 5 h.
- Subjects :
- Photoluminescence
Materials science
business.industry
Metals and Alloys
chemistry.chemical_element
Surfaces and Interfaces
Zinc
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Field emission microscopy
Chemical engineering
chemistry
X-ray crystallography
Materials Chemistry
Hydrothermal synthesis
Optoelectronics
Polymer substrate
Nanorod
business
Layer (electronics)
Subjects
Details
- ISSN :
- 00406090
- Volume :
- 520
- Database :
- OpenAIRE
- Journal :
- Thin Solid Films
- Accession number :
- edsair.doi...........0a130f0282507c372f45f047864bb3bb