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Nucleation and Growth of Germanium Nanowires Seeded by Organic Monolayer-Coated Gold Nanocrystals
Abstract
Germanium nanowires, ranging from 10 to 150 nm in diameter, were grown several micrometers in length in cyclohexane heated and pressurized above its critical point. Alkanethiol-protected gold nanocrystals, either 2.5 or 6.5 nm in diameter, were used to seed wire formation. Growth proceeded through a solution-liquid-solid mechanism at growth temperatures ranging from 300 to 450 degrees C. At temperatures exceeding 500 degrees C, large Ge particulates formed due to unfavorable growth kinetics. Temperature, the nature of the precursor, precursor concentration, and the Au:Ge ratio were determining factors in nanowire morphology. The Ge nanowires were characterized using a range of techniques, including XPS, XRD, high-resolution TEM and SEM, nanometer-scale EDS mapping, and DTA.
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Cited by
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Xia, Y., Yang, P., Sun, Y., Wu, Y., Mayers, B., Gates, B., Yin, Y., Kim, F., & Yan, H. (2003) · Advanced Materials · doi:10.1002/adma.200390087 · Cited by 8,559
Chemistry and Properties of Nanocrystals of Different Shapes
Burda, C., Chen, X., Narayanan, R., & El-Sayed, M. A. (2005) · Chemical Reviews · doi:10.1021/cr030063a · Cited by 7,230
Shape Control of Semiconductor and Metal Oxide Nanocrystals through Nonhydrolytic Colloidal Routes
Jun, Y., Choi, J., & Cheon, J. (2006) · Angewandte Chemie International Edition · doi:10.1002/anie.200503821 · Cited by 1,123
One‐Dimensional Composite Nanomaterials: Synthesis by Electrospinning and Their Applications
Lu, X., Wang, C., & Wei, Y. (2009) · Small · doi:10.1002/smll.200900445 · Cited by 874
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Fan, H. J., Werner, P., & Zacharias, M. (2006) · Small · doi:10.1002/smll.200500495 · Cited by 759
Metadata
- Authors
- Hanrath, T., & Korgel, B. A.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2002-01-22
- Volume
- 124
- Issue
- 7
- Pages
- 1424-1429
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W1966625307
- Cited by
- 291
- References
- 0
- FWCI
- 19.26
- Type
- journal article
- Language
- en
- Open access
- closed
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