From Nanofabrication to Self-fabrication – Tailored Chemistry for Control of Single Molecule Electronic Devices

Single molecule electronics is a field of research focused on the use of single molecules as electronics components. During the past 15 years the field has concentrated on development of test beds for measurements on single molecules. Bottom–up approaches to single molecule devices are emerging as alternatives to the dominant top–down nanofabrication techniques. One example is solution-based self-assembly of a molecule enclosed by two gold nanorod electrodes. This article will discuss recent attempts to control the self-assembly process by the use of supramolecular chemistry and how to tailor the electronic properties of a single molecule by chemical design

Deterministic assembly of linear gold nanorod chains as a platform for nanoscale applications

We demonstrate a method to assemble gold nanorods highly deterministically into a chain formation by means of directed capillary assembly. This way we achieved straight chains consisting of end-to-end aligned gold nanorods assembled in one specific direction with well-controlled gaps of [similar]6 nm between the individual constituents. We determined the conditions for optimum quality and yield of nanorod chain assembly by investigating the influence of template dimensions and assembly temperature. In addition, we transferred the gold nanorod chains from the assembly template onto a Si/SiO2 target substrate, thus establishing a platform for a variety of nanoscale electronic and optical applications ranging from molecular electronics to optical and plasmonic devices. As a first example, electrical measurements are performed on contacted gold nanorod chains before and after their immersion in a solution of thiol end-capped oligophenylenevinylene molecules showing an increase in the conductance by three orders of magnitude, indicating molecular-mediated transport

FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS

Review of measures taken by intergovernmental organizations to address sea turtle and seabird interactions in marine capture fisheries

From nanofabrication to self-fabrication--tailored chemistry for control of single molecule electronic devices

Single molecule electronics is a field of research focused on the use of single molecules as electronics components. During the past 15 years the field has concentrated on development of test beds for measurements on single molecules. Bottom–up approaches to single molecule devices are emerging as alternatives to the dominant top–down nanofabrication techniques. One example is solution-based self-assembly of a molecule enclosed by two gold nanorod electrodes. This article will discuss recent attempts to control the self-assembly process by the use of supramolecular chemistry and how to tailor the electronic properties of a single molecule by chemical design