Showing papers on "Nanoelectronics published in 1993"

Nanostructures based on molecular materials

Abstract: Part 1 Design of molecular functional units: molecular dual-path electron transfer of the photosynthetic metalloprotein plastocyamin from plants and a blue-green bacterium, H.E.M. Christensen et al photo-electric conversion with Langmuir-Blodgett films, M. Fujihira organic low dimensional system -: ESPRIT BR Action OLDS, E.G. Wilson the cellular automation and shift register - concepts of electronics on a molecular level, S. Roth molecular electronics - information techniques with functional molecular units, A. Naebauer et al semi-conductor nanotechnologies - tools for molecular processing. Part 2 Design and synthesis of specific molecules: molecular materials for nanoelectronics and nanophotonics - a quantum chemistry insight, J.L. Bredas polymer nanomaterials - ionic conductivity, relaxation and chromophore nonlinear optics, D. Li et al switching molecules for molecular electronics - ESPRIT BR Action MOLSWITCH, K. Schaumburg et al. Part 3 Assembly of molecules: polyion complexed Langmuir-Blodgett films, M. Fujihira and Y. Gotoh Langmuir-Blodgett films - a route to molecular electronics, I.R. Peterson building up two-dimensional molecular networks by the Langmuir-Blodgett technique, F. Porteu and S. Palacin investigation of alignment properties of Langmuir-Blodgett films, Y. Wei and J. Fang artificially made polar structures, L.M. Blinov intrinsic molecular semiconductory - design, electrical and magnetic properties, J.J. Andre submicronic molecular wires - electron and energy conduction at the nanometer scale, J. Simon transition metal soaps - composite inorganic-organic materials for columnar liquid crystals and gels, J.C. Marchon et al. Part 4 Characterization of molecular structures: change transport in metal/organic/metal-microstructures, M. Stoldt et al characterization and modification of molecular materials by scanning tunneling microscopy, J.P. Rabe photoemission spectroscopy - a basic tool for the study of molecular materials, W.R. Salaneck et al interface engineering of molecular materials, W. Goepel.

Nanotube structure and electronic properties probed by scanning tunneling microscopy

Abstract: Scanning tunneling microscopy (STM) has been used to investigate the structure and electronic properties of carbon nanotubes produced from a discharge between graphite electrodes. STM images of the nanotubes deposited onto polycrystalline gold substrates resolve the three‐dimensional structure of the nanotubes and show that these tubes often exist as tightly packed bundles. In addition, bias‐voltage dependent imaging studies indicate that the nanotubes studied are semiconductors. The implications of these new data to the application of nanotubes in structural composites and nanoelectronics is discussed.

Filament formation and the final resistance modeling in amorphous-silicon vertical programmable element

Abstract: Recent results on an amorphous-silicon vertical programmable element (PEL) made by ion implantation of single crystal silicon are presented. This device has already been demonstrated in 4 K and 16 K memory designs and EPGAs. It can be incorporated within conventional PMOS, NMOS, CMOS, bipolar, and BiCMOS designs. Its preprogrammed resistance exceeds 10/sup 7/ Omega , while its postprogrammed resistance can be 1 k Omega or lower. The ion-implanted programmable element (IPEL) and other vertical fuses offer unique features like a long retention time at elevated temperatures and very small footprint. They can be scaled down to nanoelectronics circuits with functional density exceeding 10/sup 9/ devices/cm/sup 2/. >

Direct STEM fabrication and characterization of self-supporting carbon structures for nanoelectronics

Abstract: A quantitative model is proposed to interpret the experimental results concerning the observed anomalous behavior of the thickness of growing self-supporting carbon-containing rods: a decrease in the thickness with increasing beam current. The model is based on the surface diffusion of hydrocarbon molecules and takes into account their ionization and desorption from the positively charged end of the growing rod. Possible causes of self-maintained oscillation instability of the rod growth are discussed. Procedures are recommended to optimize the fabrication of self-supporting carbon-containing structures of complicated configurations and to reduce the negative effect of the incident beam electrons during their testing.