Type

Journal Article

Authors

Justin D. Holmes
Michael A. Morris
Christoph Marschner
Michaela Zirngast
Nikolay Petkov
Sven Barth
Richard G Hobbs

Subjects

Chemistry

Topics
nanowire material particle size morphology nanowires metals scanning electron microscopy semiconductor germanium catalysts x ray diffraction nanotechnology surface properties synthesis transmission electron microscopy crystal structure chemistry aspect ratio materials

Seedless growth of sub-10 nm germanium nanowires. (2010)

Abstract We report the self-seeded growth of highly crystalline Ge nanowires, with a mean diameter as small as 6 nm without the need for a metal catalyst. The nanowires, synthesized using the purpose-built precursor hexakis(trimethylsilyl)digermane, exhibit high aspect ratios (>1000) while maintaining a uniform core diameter along their length. Additionally, the nanowires are encased in an amorphous shell of material derived from the precursor, which acts to passivate their surfaces and isolates the Ge seed particles from which the nanowires grow. The diameter of the nanowires was found to depend on the synthesis temperature employed. Specifically, there is a linear relationship between the inverse radius of the nanowires and the synthesis temperature, which can be explained by a model for the size-dependent melting of simple metals.
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Full list of authors on original publication

Justin D. Holmes, Michael A. Morris, Christoph Marschner, Michaela Zirngast, Nikolay Petkov, Sven Barth, Richard G Hobbs

Experts in our system

1
Justin D. Holmes
University College Cork
Total Publications: 287
 
2
Michael A. Morris
University College Cork
Total Publications: 164
 
3
Christoph Marschner
University College Cork
Total Publications: 5
 
4
Nikolay Petkov
University College Cork
Total Publications: 64
 
5
Sven Barth
University College Cork
Total Publications: 10
 
6
Richard G. Hobbs
University College Cork
Total Publications: 11