D
David B. Holt
Researcher at United States Naval Research Laboratory
Publications - 9
Citations - 897
David B. Holt is an academic researcher from United States Naval Research Laboratory. The author has contributed to research in topics: Molecular electronics & Molecular wire. The author has an hindex of 9, co-authored 9 publications receiving 879 citations.
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Journal ArticleDOI
Metal-molecule contacts and charge transport across monomolecular layers: measurement and theory.
TL;DR: It is demonstrated that oligo(phenylene ethynylene), a conjugated organic molecule, acts like a molecular wire under symmetric contact conditions, but exhibits characteristics of a molecular diode when the connections are asymmetric.
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Effect of Bond-Length Alternation in Molecular Wires
James G. Kushmerick,David B. Holt,Steven K. Pollack,Mark A. Ratner,John C. Yang,Terence L. Schull,Jawad Naciri,Martin H. Moore,Ranganathan Shashidhar +8 more
TL;DR: Junction conductance as a function of molecular structure is consistent with I-V characteristics calculated from extended Hückel theory coupled with a Green's function approach, and can be understood on the basis of bond-length alternation.
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Electroclinic liquid crystals with large induced tilt angle and small layer contraction
TL;DR: Optical and x-ray scattering studies of a chiral, organosiloxane smectic-A liquid crystal indicate a large field induced optical tilt of up to 31 degrees accompanied by a very small contraction of thesmectic layers, suggesting that the molecules have a nonzero tilt even with no applied field.
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Understanding charge transport in molecular electronics.
J J. Kushmerick,Steven K. Pollack,John C. Yang,Jawad Naciri,David B. Holt,Mark A. Ratner,R. Shashidhar +6 more
TL;DR: An experimentally simple crossed‐wire tunnel junction is used to interrogate how factors such as metal‐molecule coupling, molecular structure, and the choice of metal electrode influence the current‐voltage characteristics of a molecular junction.
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Fabrication of a capillary immunosensor in polymethyl methacrylate.
TL;DR: A method for fabricating capillary-based immunosensors in a coupon milled from an inexpensive, commodity plastic (PMMA, plexiglass) is demonstrated and the key feature of the technique is the use of sol-gel technology to deposit a glass-like film on surfaces of the plastic capillary channels to facilitate antibody immobilization.