Applications, molecular electronics fabrication

Reactions on the surface are interesting. The adsorptions of unsaturated organic molecules on the surface provide a means for fabricating well-ordered monolayer films. Thin film organic layers can be used for diverse applications such as chemical and biological sensors, computer displays, and molecular electronics. 

Molecular electronics was bom in the 1990s as a branch of nanotechnology dealing with the study and application of molecular building blocks for the fabrication of electronic components [1-3]. Today, after more than 15 years of intense... 

This chapter describes different synthetic approaches towards the fabrication of candidate molecules for use in molecular electronics applications with an emphasis on thiol end-capped jr-conjugated molecules, followed by a survey of the electronic transmission properties in two- and three-terminal devices. 

Organic materials are used in the existing electronics industries mainly for passive purposes insulating and structural support materials. There are, however, exceptions, such as photoresists, liquid crystal displays, and electrocopying. More challenging to many researchers in a diversity of fields is the application of organic conductors from the viewpoint of the fabrication of molecular electronics, to which this chapter is devoted. 

Tweezers, scissors and screwdrivers are primitive tools compared to computers, but their importance and wide applicability to daily life cannot be ignored. Similarly, molecular scale mechanical devices would be very useful in nanotechnology. For example, a molecular robot that fabricates molecular wires and molecular machines that could penetrate deep inside the body would provide huge contribution in the fields of molecular electronics and medicine, respectively. 

Pure organic functional PE and TCNQ thin films were successfully fabricated. The influence of several ICB parameters on the film structure was studied. A single crystalline PE and TCNQ thin film was obtained at critical deposition parameters. Moreover, the moire fringe of the thin film was obtained at critical deposition parameters. Moreover, the moire fringe of the thin film was observed in the TEM analysis of the structure of the TCNQ thin film. The achievement of an organic single crystalline thin film offers the prospect of application of organic TCNQ films in molecular electronic devices. 

A very recent research line is the initiation and investigation of chemical reactions at surfaces for the fabrication of oligomeric/polymeric nanostructures from molecular monomers and thereby, going from supramolecular to covalent interactions. The prospect of obtaining molecular structures with improved mechanical stability as well as intermolecular charge transport by interlinking the monomeric units is very exciting. Moreover, there are clear indications that this research field will pave the way toward the realization of robust and functional molecular nanostructures for future applications in (molecular) electronics, sensors, catalysis, and so on. 

The wealth of information obtained on the general principles of crystalline bacterial cell surface layers, particularly on their structure, assembly, surface, and molecular sieving properties have revealed a broad application potential. Above all, the repetitive physicochemical properties down to the subnanometer-scale make S-layer lattices unique self-assembly structures for functionalization of surfaces and interfaces down to the ultimate resolution limit. S-layers that have been recrystallized on solid substrates can be used as immobilization matrices for a great variety of functional molecules or as templates for the fabrication of ordered and precisely located nanometer-scale particles as required for the production of biosensors, diagnostics, molecular electronics, and nonlinear optics [2,3,6]. 

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