Online citations, reference lists, and bibliographies.
← Back to Search

Cleaved-edge-overgrowth Nanogap Electrodes.

Sebastian M. Luber, M. Bichler, G. Abstreiter, M. Tornow
Published 2011 · Materials Science, Medicine

Cite This
Download PDF
Analyze on Scholarcy
We present a method to fabricate multiple metal nanogap electrodes of tailored width and distance in parallel, on the cleaved plane of a GaAs/AlGaAs heterostructure. The three-dimensional patterned structures are obtained by a combination of molecular-beam-epitaxial regrowth on a crystal facet, using the cleaved-edge-overgrowth (CEO) method, and subsequent wet selective etching and metallization steps. SEM and AFM studies reveal smooth and co-planar electrodes of width and distance of the order of 10 nm. Preliminary electrical characterization indicates electrical gap insulation in the 100 MΩ range with kΩ lead resistance. We propose our methodology to realize multiple electrode geometries that would allow investigation of the electrical conductivity of complex nanoscale objects such as branched organic molecules.
This paper references
Planar nanogap electrodes by direct nanotransfer printing.
S. Strobel (2009)
Single-molecule electrical junctions.
Y. Selzer (2006)
Silicon based nanogap device for studying electrical transport phenomena in molecule-nanoparticle hybrids.
S. Strobel (2008)
A silicon-on-insulator vertical nanogap device for electrical transport measurements in aqueous electrolyte solution
S. Strobel (2007)
Effect of local environment on molecular conduction: isolated molecule versus self-assembled monolayer.
Y. Selzer (2005)
Electrical conduction through single molecules and self-assembled monolayers
H. Akkerman (2008)
Alligator clips to molecular dimensions.
N. Prokopuk (2008)
Nanometre spaced electrodes on a cleaved AlGaAs surface
Sebastian M. Luber (2005)
Making contact : Connecting molecules electrically to the macroscopic world
H. Haick (2008)
Molecular electronics with single molecules in solid-state devices.
K. Moth-Poulsen (2009)
Observation of molecular orbital gating
Hyunwook Song (2009)
Technology Assessment of a Novel High-Yield Lithographic Technique for Sub-15-nm Direct Nanotransfer Printing of Nanogap Electrodes
Stefan Harrer (2009)
Etch Rates and Selectivities of Citric Acid/Hydrogen Peroxide on GaAs , Al0.3Ga0.7As , In0.2Ga0.8As , In0.53Ga0.47As , In0.52Al0.48As , and InP
G. Desalvo (1992)
Molecular electronics: some views on transport junctions and beyond.
C. Joachim (2005)
High-aspect-ratio nanogap electrodes for averaging molecular conductance measurements.
Sebastian M. Luber (2007)
Formation of a high quality two-dimensional electron gas on cleaved GaAs
L. Pfeiffer (1990)
Electron transport in molecular junctions
N. Tao (2006)
Nanogap Electrodes: Nanogap Electrodes (Adv. Mater. 2/2010)
T. Li (2010)

This paper is referenced by
Semantic Scholar Logo Some data provided by SemanticScholar