Abstract: Provided are a molecular electronic device and a method of fabricating the molecular electronic device. The molecular electronic device includes a substrate, an organic dielectric thin film formed over the substrate, a molecular active layer formed on the organic dielectric thin film and having a charge trap site, and an electrode formed on the molecular active layer. The organic dielectric thin film may be immobilized on the electrode or a Si layer by a self-assembled method. The organic dielectric thin film may include first and second molecular layers bound together through hydrogen bonds. An organic compound may be self-assembled over the substrate to form the organic dielectric thin film. The organic compound may include an M?-R-T structure, where M?, R and T represent a thiol or silane derivative, a saturated or unsaturated C1 to C20 hydrocarbon group which is substituted or unsubstituted with fluorine (F), and an amino(—NH2) or carboxyl (—COOH) group, respectively.

Abstract: Systems and methodologies are provided for forming three dimensional memory structures that are fabricated from blocks of individual polymer memory cells stacked on top of each other. Such a polymer memory structure can be formed on top of control component circuitries employed for programming a plurality of memory cells that form the stacked three dimensional structure. Such an arrangement provides for an efficient placement of polymer memory cell on a wafer surface, and increases amount of die space available for circuit design.

Abstract: The present invention relates to an organic semiconductor material in which carbon nanotubes are dispersed in a conjugated polymer, and the weight fraction of the carbon nanotubes is 3 percent or less relative to the conjugated polymer. According to the present invention, an organic semiconductor material having a high carrier mobility can be supplied industrially. Furthermore, high-performance organic semiconductor devices, e.g., organic thin film transistor devices and organic photovoltaic devices, can be provided.

Abstract: The invention includes a switchable circuit device. The device comprises a first conductive layer and a porous silicon matrix over the first conductive layer. A material is dispersed within pores of the porous silicon matrix, and the material has two stable states. A second conductive layer is formed over the porous silicon matrix. A current flow between the first and second conductive layers is influenced by which of the stable states the material is in.

Abstract: The present invention is concerned with the adsorption of chiral molecules at surfaces or interfaces, with the arrangement and properties of adsorbed chiral molecules, and with devices and methods based thereupon. In particular, an apparatus allows the influence of the magnetic environment of the adsorbed chiral molecules by means of a magnetic field. The new observed orientation of the adsorbed chiral molecules caused by the chiro-magnetic effect, and the possible applications, are disclosed too.

Abstract: An article of manufacture including an organic structure and inorganic atoms bonded to specific locations on the organic structure.

Abstract: A bulk-doped semiconductor that is at least one of the following: a single crystal, an elongated and bulk-doped semiconductor that, at any point along its longitudinal axis, has a largest cross-sectional dimension less than 500 nanometers, and a free-standing and bulk-doped semiconductor with at least one portion having a smallest width of less than 500 nanometers. Such a semiconductor may comprise an interior core comprising a first semiconductor; and an exterior shell comprising a different material than the first semiconductor. Such a semiconductor may be elongated and may have, at any point along a longitudinal section of such a semiconductor, a ratio of the length of the section to a longest width is greater than 4:1, or greater than 10:1, or greater than 100:1, or even greater than 1000:1.

Abstract: An organic electronic device of the present invention includes a substrate, at least two electrodes formed on the substrate, a conductive organic thin film that is formed on the substrate and electrically connects the electrodes, and a coating film for coating at least a portion of the electrodes. The conductive organic thin film is a polymer of organic molecules containing a conjugated-bondable group, and one end of each of the organic molecules is chemically bonded to the surface of the substrate and the conjugated-bondable groups in the organic molecules are polymerized with other conjugated-bondable groups to form a conjugated bond chain. The coating film electrically connects the electrodes to the conductive organic thin film and achieves a smaller connection resistance than that in the case where the electrodes and the conductive organic thin film are connected directly.

Abstract: A novel memory cell is provided with an active region including a molecular system and ionic complexes distributed in the molecular system. A pair of write electrodes are arranged for writing information to the memory cell. The active region is responsive to an electric field applied between the pair of write electrodes for switching between an on state and an off state. The active region has a high impedance in the off state and a low impedance in the on state. A pair of read electrodes is used to detect whether the active region is in the on state or in the off state to read the information from the memory cell. Read electrodes may be made of different materials having different work functions to reduce leakage current.

Abstract: Systems and methodologies are provided for forming a diode component integral with a memory cell to facilitate programming arrays of memory cells created therefrom. Such a diode component can be part of a PN junction of memory cell having a passive and active layer with asymmetric semiconducting properties. Such an arrangement reduces a number of transistor-type voltage controls and associated power consumption, while enabling individual memory cell programming as part of a passive array. Moreover, the system provides for an efficient placement of memory cells on a wafer surface, and increases an amount of die space available for circuit design.

Abstract: A rectifier device, based on a novel operation principle completely different from that of conventional molecular electronic devices, is made by coupling two or more molecules or molecule arrays (11) at certain joints. By making use of the phenomenon that transfer of an excited state or exciton from one molecule or molecule array to another molecule or molecule array coupled thereto progresses asymmetrically due to spatial asymmetry at the joint, a rectifying function related to the transfer of the excited state of exciton is obtained. Additionally, by controlling the rectification property in addition to the rectification function, an ion sensor device or a switching device is made. A resistor device may be inserted in the rectifier device.

Abstract: A memory array comprising nanoscale wires is disclosed. The nanoscale wires are addressed by means of controllable regions axially and/or radially distributed along the nanoscale wires. In a one-dimensional embodiment, memory locations are defined by crossing points between nanoscale wires and microscale wires. In a two-dimensional embodiment, memory locations are defined by crossing points between perpendicular nanoscale wires. In a three-dimensional embodiment, memory locations are defined by crossing points between nanoscale wires located in different vertical layers.

Abstract: This invention provides approaches to improve the signal to noise ratio (S/N) in electrochemical measurements (e.g., amperometry, voltammetry, etc.). In particular, a method is described wherein the faradaic current is temporally dissociated from the charging current associated with reading the charge of a redox-active species (e.g., a self-assembled monolayer (SAM)). This method, designated herein as open circuit potential amperometry (OCPA), quantitatively reads the charge of the redox species bound to (electrically coupled to) an electrode surface, while discriminating against both charging current(s) and amperometric signal(s) that arise, e.g., from diffusion-based species in solution.

Abstract: A compliant free-standing multilayer membrane is provided of the cross-sectional formula: [(Pcat?Pan)nPcat/Met/(Pcat?Pan)nPcat]m wherein (Pcat31 Pan) represents a bilayer of an anionic polymer and a cationic polymer between at least one layer of Met; n is about 1-50, m is about 1-10; Met is an inert metal nanoparticle; Pcat is a cationic polymer and Pan is an anionic polymer, preferably prepared by a spin-assisted layer-by-layer assembly on a sacrificial substrate layer.

Abstract: A molecule is wired into an electronic circuit by attaching a metal nanoparticle to the molecule and then electrically connecting a metal nanoparticle to the electric circuit. The metal nanoparticle interconnects can bridge the gap between small molecules and conventional electric circuits. An optical second harmonic also may be generated by impinging optical radiation having a first frequency on an array of molecularly bridged metal nanoparticles, to generate optical energy at a second frequency that is twice the first frequency. Red to blue light conversion thereby may be provided.

Abstract: A memory cell is provided with a pair of electrodes, and an active layer sandwiched between the electrodes and including a molecular system and ionic complexes distributed in the molecular system. The active layer having a high-impedance state and a low-impedance state switches from the high-impedance state to the low-impedance state when an amplitude of a writing signal exceeds a writing threshold level, to enable writing information into the memory cell. The active layer switches from the low-impedance state to the high-impedance state when an amplitude of an erasing signal having opposite polarity with respect to the writing signal exceeds an erasing threshold level, to enable erasing information from the memory cell.