Oligo(phenylethynylene) as a High Photoluminescence Quantum Yield Material and Its Distributed Feedback Laser Emission in Thin Films
✍ Scribed by T. Maillou; J. Le Moigne; V. Dumarcher; L. Rocha; B. Geffroy; J.-M. Nunzi
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 213 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0935-9648
No coin nor oath required. For personal study only.
✦ Synopsis
particles serve as the catalyst and direct the growth of boron nanowires via a vapor±liquid±solid (VLS) mechanism. In our experiments, however, no catalyst was used and no metal nanoparticle can be found at the tip of both stem and branches or at the junction region using TEM and SEM. We suggest that our use of magnetron sputtering to grow boron nanofeather arrays may involve a more complex vapor±solid mechanism that is yet to be determined.
In summary, large-scale arrays of well-aligned boron nanofeathers have been synthesized using a simple magnetron sputtering approach without the use of catalyst or template. The multiple junction structures and well-ordered alignment of the featherlike boron nanowires may offer opportunities to understand the fundamentals of boron chemistry, as well as for potential applications in the fabrication of various nanodevices. We believe that the approach presented here can be used to fabricate heterostructures with a bottom-up assembly of boron nanowires and other nanowires or nanotubes, such as Y-and/or T-junctions.