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A simple route towards tubular ZnO
Jun Zhang1, Lingdong Sun, Chunsheng Liao
1State Key Laboratory of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Lab in Rare Earth Materials and Bioinorganic Chemistry, Peking University, Beijing 100871, China.
Chemical Communications (Cambridge, England)
|July 18, 2002
Summary
Researchers synthesized tubular zinc oxide (ZnO) with strong ultraviolet photoluminescence. The hollow ZnO tubules, formed via thermal treatment, show potential for optical applications.
Area of Science:
- Materials Science
- Nanotechnology
- Solid State Chemistry
Background:
- Zinc oxide (ZnO) is a semiconductor with diverse applications.
- Controlled synthesis of nanostructured ZnO is crucial for advanced functionalities.
- Photoluminescence properties of ZnO are sensitive to its morphology and structure.
Purpose of the Study:
- To synthesize tubular ZnO nanostructures.
- To investigate the structural and optical properties of the synthesized ZnO.
- To explore the potential of ZnO tubules for photoluminescent applications.
Main Methods:
- Thermal treatment of a zinc precursor (Zn(NH3)4^2+) in ethanol solvent.
- Transmission Electron Microscopy (TEM) for structural analysis.
- Photoluminescence spectroscopy at room temperature.
Main Results:
- Formation of hollow ZnO tubules with diameters of approximately 450 nm and lengths of approximately 4 microns.
- ZnO tubules are composed of polycrystalline ZnO.
- Observation of strong ultraviolet (UV) photoluminescence at approximately 385 nm at room temperature.
Conclusions:
- The synthesis method effectively produces tubular ZnO nanostructures.
- The tubular ZnO exhibits significant UV photoluminescence, indicating potential for optoelectronic devices.
- The morphology and polycrystalline nature of the tubules influence their optical properties.