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Published on: June 18, 2013
Super-long aligned TiO2/carbon nanotube arrays
1Key Laboratory of Cluster Science, Ministry of Education, Department of Chemistry, Beijing Institute of Technology, Beijing 100081, People's Republic of China.
Nanotechnology
|November 25, 2010
Summary
Millimeter-long titanium oxide/carbon nanotube (TiO(2)/CNT) arrays were fabricated using electrochemical coating. These aligned TiO(2)/CNT nanomaterials show improved electron transfer for advanced photoelectronic devices.
Area of Science:
- Materials Science
- Nanotechnology
- Electrochemistry
Background:
- Carbon nanotubes (CNTs) are crucial for nanomaterials.
- Titanium dioxide (TiO(2)) is a semiconductor with photocatalytic properties.
- Integrating TiO(2) with CNTs can enhance electronic properties.
Purpose of the Study:
- To develop millimeter-long aligned titanium oxide/carbon nanotube (TiO(2)/CNT) coaxial nanowire arrays.
- To investigate the photoelectronic properties of these novel arrays.
- To demonstrate their potential for device applications.
Main Methods:
- Electrochemical coating of CNTs with anatase TiO(2) nanoparticles.
- Characterization using scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy, and X-ray diffraction (XRD).
Main Results:
- Successfully prepared 5 mm long aligned TiO(2)/CNT coaxial nanowire arrays.
- Confirmed the uniform TiO(2) coating and crystalline structure.
- Observed minimized recombination of photoinduced electron-hole pairs.
- Demonstrated fast electron transfer to external circuits.
Conclusions:
- The millimeter-long aligned TiO(2)/CNT arrays are a significant advancement in macroscopic photoelectronic nanomaterials.
- The enhanced properties facilitate fabrication for diverse device applications.
- These nanomaterials show promise for photodetectors, photocatalytic systems, and beyond.
