摘要:
This invention is generally related to a method of making a molecule-surface interface comprising at least one surface comprising at least one material and at least one organic group wherein the organic group is adjoined to the surface and the method comprises contacting at least one organic group precursor with at least one surface wherein the organic group precursor is capable of reacting with the surface in a manner sufficient to adjoin the organic group and the surface. The present invention is directed to hybrid molecular electronic devices having a molecule-surface interface. Such hybrid molecular electronic devices may advantageously have either a top or bottom gate electrode for modifying a conductivity of the devices.
摘要:
Compositions containing a transporter component and a signaling component and a method for using said compositions for analyzing porous media and flowing liquid streams, specifically for measuring pressure, temperature, relative abundance of water, pH, redox potential and electrolyte concentration. Analytes may include petroleum or other hydrophobic media, sulfur-containing compounds. The transporter component includes an amphiphilic nanomatenal and a plurality of solubilizing groups covalently bonded to the transporter component. The signaling component includes a plurality of reporter molecules associated with the transporter component. Said reporter molecules may be releasable from the transporter component upon exposure to at least one analyte. The reporter molecules may be non-covalently associated with the transporter component, or the reporter molecules are covalently bonded to the transporter component. Furthermore, said compositions and methods may be used to actively enhance oil recovery and for remediation of pollutants.
摘要:
Drilling fluids comprising graphenes and nanoplatelet additives and methods for production thereof are disclosed. Graphene includes graphite oxide, graphene oxide, chemically-converted graphene, and functionalized chemically-converted graphene. Derivatized graphenes and methods for production thereof are disclosed. The derivatized graphenes are prepared from a chemically-converted graphene through derivatization with a plurality of functional groups. Derivatization can be accomplished, for example, by reaction of a chemically-converted graphene with a diazonium species. Methods for preparation of graphite oxide are also disclosed.
摘要:
In various embodiments, electronic devices containing switchably conductive silicon oxide as a switching element are described herein. The electronic devices are two-terminal devices containing a first electrical contact and a second electrical contact in which at least one of the first electrical contact or the second electrical contact is deposed on a substrate to define a gap region therebetween. A switching layer containing a switchably conductive silicon oxide resides in the gap region between the first electrical contact and the second electrical contact. The electronic devices exhibit hysteretic current versus voltage properties, enabling their use in switching and memory applications. Methods for configuring, operating and constructing the electronic devices are also presented herein.
摘要:
The present invention is directed toward methods of selectively functionalizing carbon nanotubes of a specific type or range of types, based on their electronic properties, using diazonium chemistry. The present invention is also directed toward methods of separating carbon nanotubes into populations of specific types or range(s) of types via selective functionalization and electrophoresis, and also to the novel compositions generated by such separations.
摘要:
Re-programmable antifuses and structures utilizing re-programmable antifuses are presented herein. Such structures include a configurable interconnect circuit having at least one re-programmable antifuse, wherein the at least one re-programmable antifuse is configured to be programmed to conduct by applying a first voltage across it and is configured to be re-programmed not to conduct by applying second voltage across it, wherein the second voltage is higher than the first voltage. Additionally, the re-programmable antifuses may be configured to a permanently conductive state by applying an even higher voltage across it.
摘要:
Electronic devices comprising a dielectric material, at least one carbon sheet, and two electrode terminals are described herein. The devices exhibit non-linear current-versus-voltage response over a voltage sweep range in various embodiments. Uses of the electronic devices as two-terminal memory devices, logic units, and sensors are disclosed. Processes for making the electronic devices are disclosed. Methods for using the electronic devices in analytical methods are disclosed.
摘要:
The present invention is directed toward methods of attaching or grafting carbon nanotubes (CNTs) to silicon or other surfaces, wherein such attaching or grafting occurs via functional groups on either or both of the CNTs and silicon surface. The present invention is also directed to the novel compositions produced by such methods. Previous work by Applicants has demonstrated covalent attachment of arenes via aryldiazonium salts to Si (hydride passivated single crystal or poly Si; or , p-doped, n-doped or intrinsic), GaAs, and Pd surfaces. In the case of Si, this provides a direct arene-Si bond with no intervening oxide. Applicants have also reported on the use of aryldiazonium salts for the direct covalent linkage of arenes to single wall carbon nanotubes (SWNTs) where the nanotubes can exist either as bundles or individual structures (when surfactant-wrapped). In some embodiments, the present invention is directed to a merger of these two technologies to afford the covalent attachment of individualized (unroped) SWNTs to Si surfaces.
摘要:
The present invention utilizes non-halogenated aromatic compounds as flame retardants for polymer containing materials. Specifically, the compounds may be various non-halogenated aromatics such as the aromatic boronic acids. Suitable aromatic compounds include 1,4-benzenediboronic acid, and phenylboronic acid, although other non-halogenated compounds may be utilized. Various polymer-containing materials may utilized the flame retardants of the present invention. Examples include the polyethylenes, polypropylenes, polycarbonates, acrylonitrile-butadiene-styrenes, and high impact polystyrenes.
摘要:
An integrated circuit structure including a plurality of transistors; a plurality of thin-film conductor interconnects, interconnected to form electronic circuits in a predetermined electrical configuration; and a plurality of pairs of contact pads, connected to the thin-film conductor interconnects, each adjacent pair of contact pads including a first pad of a first conductive material and a second pad of a second conductive material, and being electrically connected only by a conductive oligomer of a precisely determined number of units.