Skip to main content Accessibility help
×
Home

Connected Electrodes by the Growth of Germanium Dioxide Nanowires

  • Chun-I Wu (a1) and Tim P. Hogan (a2)

Abstract

Germanium dioxide nanowires have gained significant interest lately due to the the bandgap of 2.44 eV, and high index of refraction, n=1.63. In this paper we aim at investigating the lateral growth of high density metal-catalyzed germanium dioxide nanowires between electrodes. The gaps between two electrodes varied. The catalyst metal was placed on the electrodes, followed by a thermal annealing process, resulting in lateral growth of germanium dioxide whiskers with several microns length and eventually the formation of bridge-like nanostructures. These whiskers have certain unique properties, such as a high surface-to-volume ratio and the capability of connecting two electrodes. Because of these properties, the growth of whiskers from the electrodes has the potential to be developed as electronic devices such as nanosensors. These products are characterized by scanning electron microscopy (SEM), as well as X-Ray diffraction (XRD).

Copyright

References

Hide All
1. Haraguchi, K., Hiruma, K., Katsuyama, T., Tominaga, K., Shirai, M., and Shimada, T., “Self-orgainized fabrication of planar GaAs nanowhisker arrays”, Appl. Phys. Lett., Vol. 69, pp 386387, 1996.
2. Haraguchi, K., Hiruma, K., Hosomi, K., Shirai, M., and Katsuyama, T., “Growth mechanism of planar-type GaAs nanowhiskers”, J. Vac. Sci. Technol. B, Vol. 15, pp 16851687, 1997
3. Islam, M. S., Sharma, S., Kamins, T. I., and Williams, R. S., “Ultrahigh-density silicon nanobridges formed between two vertical silicon surfaces”, Nanotechnology, Vol. 15, pp L5–L8, 2004.
4. Bai, Z.G., Yu, D.P., Zhang, H.Z., Ding, Y., Wang, Y.P., Gai, X.Z., Hang, Q.L., Xiong, G.C., and Feng, S.Q., “Nanoscale GeO2 wires synthesized by physical evaporation”, Chemical Physics Letters, vol. 317, pp504509, Feb. 2000.
5. Hidalgo, P., Mendez, B. and Piqueras, J., ‘GeO2 nanowires and nanoneedles grown by thermal deposition without a catalyst”, Nanotechnology, vol. 16, pp25212524, Sep. 2005.
6. Zhang, Y., Zhu, J., Zhang, Q., Yan, Y., Wang, N., and Zhang, X., “Synthesis of GeO2 nanorods by carbon nanotubes template”, Chemical Physics Letters, vol. 317, pp. 504509, Feb. 2000.
7. Tang, Y. H., Zhang, Y. F., Wang, N., Bello, I., Lee, C. S., and Lee, S. T., “Germanium dioxide whiskers synthesized by laser ablation”, Applied Physics Letters, vol. 74 (25), pp. 38243826, Feb. 1999.
8. Dang, H. Y., Wang, J., and Fan, S. S., “The synthesis of metal oxide nanowires by directly heating metal samples in appropriate oxygen atmospheres”, Nanotechnology, vol. 14, pp738741, May 2003.
9. Hu, J.-Q., Li, Q., Meng, X.-M., Lee, C.-S., and Lee, S.-T., “Synthesis and nanostructuring of patterned wires of GeO2 by thermal oxidation”, Advanced Materials, vol. 14, no. 19, pp13961399, Oct. 2002.
10. Wu, X. C., Song, W. H., Zhao, B., Sun, Y. P., and Du, J. J., “Preparation and photoluminescence properties of crystalline GeO2 nanowires”, Chemical Physics Letters, vol. 349, pp210214, Oct. 2001.
11. Wang, W. U., Chen, C., Lin*, K.-H., Fang*, Y., and Lieber, C. M., “Label-free detection of small-molecule–protein interactions by using nanowire nanosensors”, Perceedings of the National Academy of Sciences of the united States of America, Vol. 102, pp32083212, 2005

Keywords

Connected Electrodes by the Growth of Germanium Dioxide Nanowires

  • Chun-I Wu (a1) and Tim P. Hogan (a2)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed