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

Silicon Based Nanogap Device For Studying Electrical Transport Phenomena In Molecule-nanoparticle Hybrids.

S. Strobel, Rocío Murcia Hernández, A. Hansen, M. Tornow
Published 2008 · Chemistry, Medicine

Cite This
Download PDF
Analyze on Scholarcy
We report the fabrication and characterization of vertical nanogap electrode devices using silicon-on-insulator substrates. Using only standard silicon microelectronic process technology, nanogaps down to 26 nm electrode separation were prepared. Transmission electron microscopy cross-sectional analysis revealed the well defined material architecture of the nanogap, comprising two electrodes of dissimilar geometrical shape. This asymmetry is directly reflected in transport measurements on molecule-nanoparticle hybrid systems formed by self-assembling a monolayer of mercaptohexanol on the electrode surface and the subsequent dielectrophoretic trapping of 30 nm diameter Au nanoparticles. The observed Coulomb staircase I-V characteristic measured at T = 4.2 K is in excellent agreement with theoretical modelling, whereby junction capacitances of the order of a few 10(-18) farad and asymmetric resistances of 30 and 300 MΩ, respectively, are also supported well by our independent estimates for the formed double barrier tunnelling system. We propose our nanoelectrode system for integrating novel functional electronic devices such as molecular junctions or nanoparticle hybrids into existing silicon microelectronic process technology.
This paper references
Comparison of Electronic Transport Measurements on Organic Molecules
Adi Salomon (2003)
High-aspect-ratio nanogap electrodes for averaging molecular conductance measurements.
Sebastian M. Luber (2007)
A silicon structure for electrical characterisation of nanoscale elements
P. Sazio (2001)
Novel one-dimensional nanogap created with standard optical lithography and evaporation procedures.
S. Dirk (2005)
Mesoscopic phenomena in solids
B. Altshuler (1991)
Nanometre spaced electrodes on a cleaved AlGaAs surface
Sebastian M. Luber (2005)
Evaluation of the capacitive force between an atomic force microscopy tip and a metallic surface
S. Hudlet (1998)
Variation of the Coulomb staircase in a two-junction system by fractional electron charge.
Hanna (1991)
Fabrication of nanoscale gaps in integrated circuits
R. Krahne (2002)
A silicon-on-insulator vertical nanogap device for electrical transport measurements in aqueous electrolyte solution
S. Strobel (2007)
Structure and growth of self-assembling monolayers
F. Schreiber (2000)
Electron transport in molecular junctions
N. Tao (2006)
Architectures for molecular electronic computers. I. Logic structures and an adder designed from molecular electronic diodes
J.C. Ellenbogen (2000)
Adsorbed .omega.-hydroxy thiol monolayers on gold electrodes: evidence for electron tunneling to redox species in solution
C. Miller (1991)
Single Electronics: A Correlated Transfer of Single Electrons and Cooper Pairs in Systems of Small Tunnel Junctions
D. Averin (1991)
Assembly of metal nanoparticles into nanogaps.
R. J. Barsotti (2007)
Influence of metal-molecule contacts on decay coefficients and specific contact resistances in molecular junctions
G. Wang (2007)
Intrinsic noise of the single-electron transistor.
Korotkov (1994)
Electrical conduction through single molecules and self-assembled monolayers
H. Akkerman (2008)
An approach to transport measurements of electronic molecules
I. Amlani (2002)

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