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Germanium Nanowire Growth Below the Eutectic Temperature
Abstract
Nanowires are conventionally assumed to grow via the vapor-liquid-solid process, in which material from the vapor is incorporated into the growing nanowire via a liquid catalyst, commonly a low–melting point eutectic alloy. However, nanowires have been observed to grow below the eutectic temperature, and the state of the catalyst remains controversial. Using in situ microscopy, we showed that, for the classic Ge/Au system, nanowire growth can occur below the eutectic temperature with either liquid or solid catalysts at the same temperature. We found, unexpectedly, that the catalyst state depends on the growth pressure and thermal history. We suggest that these phenomena may be due to kinetic enrichment of the eutectic alloy composition and expect these results to be relevant for other nanowire systems.
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Cited by
Yoshida, H., Takeda, S., Uchiyama, T., Kohno, H., & Homma, Y. (2008) · Nano Letters · doi:10.1021/nl080452q · Cited by 567
Wolfsteller, A., Geyer, N., Nguyen-Duc, T.-K., Das Kanungo, P., Zakharov, N. D., Reiche, M., Erfurth, W., Blumtritt, H., Kalem, S., Werner, P., et al. (2010) · Thin Solid Films · doi:10.1016/j.tsf.2009.08.021 · Cited by 54
Chu, W. G., Wang, H. F., Guo, Y. J., Zhang, L. N., Han, Z. H., Li, Q. Q., & Fan, S. S. (2009) · Inorganic Chemistry · doi:10.1021/ic801885c · Cited by 33
Metadata
- Authors
- Kodambaka, S., Tersoff, J., Reuter, M. C., & Ross, F. M.
- Venue
- Science
- Published
- 2007-05-04
- Volume
- 316
- Issue
- 5825
- Pages
- 729-732
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2023356290
- Cited by
- 601
- References
- 0
- FWCI
- 42.75
- Type
- journal article
- Language
- en
- Open access
- closed
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- Kodambaka, S., Tersoff, J., Reuter, M. C., & Ross, F. M. (2007). Germanium Nanowire Growth Below the Eutectic Temperature. Science. https://doi.org/10.1126/science.1139105
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