News Column

Investigators from IBM Report New Data on Nanowires

February 14, 2014

By a News Reporter-Staff News Editor at Science Letter -- Current study results on Nanowires have been published. According to news reporting out of Yorktown Heights, New York, by NewsRx editors, research stated, "In the growth of nanoscale device structures, the ultimate goal is atomic-level precision. By growing III-V nanowires in a transmission electron microscope, we measured the local kinetics in situ as each atomic plane was added at the catalyst-nanowire growth interface by the vapor-liquid-solid process."

Our news journalists obtained a quote from the research from IBM, "During growth of gallium phosphide nanowires at typical V/III ratios, we found surprising fluctuations in growth rate, even under steady growth conditions. We correlated these fluctuations with the formation of twin defects in the nanowire, and found that these variations can be suppressed by switching to growth conditions with a low V/III ratio. We derive a growth model showing that this unexpected variation in local growth kinetics reflects the very different supply pathways of the V and III species."

According to the news editors, the research concluded: "The model explains under which conditions the growth rate can be controlled precisely at the atomic level."

For more information on this research see: Atomic-Scale Variability and Control of III-V Nanowire Growth Kinetics. Science, 2014;343(6168):281-284. Science can be contacted at: Amer Assoc Advancement Science, 1200 New York Ave, NW, Washington, DC 20005, USA. (Springer -; Science -

Our news journalists report that additional information may be obtained by contacting Y.C. Chou, IBM Corp, Div Res, TJ Watson Res Center, Yorktown Hts, NY 10598, United States. Additional authors for this research include K. Hillerich, J. Tersoff, M.C. Reuter, K.A. Dick and F.M. Ross (see also Nanowires).

Keywords for this news article include: New York, United States, Nanotechnology, Yorktown Heights, Emerging Technologies, North and Central America

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Source: Science Letter

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