Abstract:
A thin film transistor comprises a layer of organic semiconductor material comprising a tetracarboxylic diimide naphthalene-based compound having, attached to each of the imide nitrogen atoms, an aromatic moiety, at least one of which moieties is substituted with at least one electron donating group. Such transistors can further comprise spaced apart first and second contact means or electrodes in contact with said material. Further disclosed is a process for fabricating an organic thin-film transistor device, preferably by sublimation deposition onto a substrate, wherein the substrate temperature is no more than 100° C.
Abstract:
The present invention relates to a light curable material comprising a splayed layered material, at least one aqueous dispersible polymerizer, and at least one aqueous soluble N-oxyazinium compound, wherein the polymerizer polymerizes upon exposure to light. The present invention also includes a method for curing a material comprising providing layered material, splaying the layered material, combining the splayed layered material with a polymerizer and an aqueous soluble N-oxyazinium compound, and subjecting the combination to light for a period of time sufficient to effect the polymerization of the polymerizer.
Abstract:
Disclosed is a multilayer film comprising a substrate bearing an aligned liquid crystal layer wherein the aligned liquid crystal layer contains an azolium salt represented by formula (I): whereinthe subscripts represent the ring positions and each X is independently N or C—R;each Z is independently N, N—R, C—(R)(R), O, S, SO2, SO, C═O, C═S, or C═NR;each R group is independently hydrogen or a substituent; andY is a charge balancing anion, which may be a separate moiety or part of an X, Z, or R;provided two or more X, Z and R groups may form a ring;provided the salt may be part of an oligomer or polymer.Such a film provides a predetermined increase in pre-tilt angle for use in liquid crystal devices.
Abstract:
A process for forming an aryl-aryl bond comprises the step of reacting an arene hydrocarbon compound with either (1) an organic oxidant selected from the group consisting of a quinone, a quinone imine, a quinone diimine, and a nitroarene, or (2) an oxidizing salt selected from the group consisting of a triarylaminium salt, an oxonium salt, and a nitrosium salt, or (3) a hypervalent iodine compound, each in the presence of a Brönsted or Lewis acid.
Abstract:
A method and a system for estimating a friction coefficient between a driven wheel and a surface. The method uses a Fourier series to calculate the friction coefficient. More specifically, a desired wheel slip ratio is calculated using received sensor readings related to a system state and a desired wheel speed determined from various system conditions or user inputs. A Fourier series is used to estimate the friction coefficient. The method is generally cycled many times each second to allow for varying road conditions by adjusting the Fourier series coefficients after each cycle. The system generally includes a wheel speed sensor and an accelerometer providing signals to a processor or various modules to perform the above method.
Abstract:
A color coded bead for use in a microarray for detecting target analytes, the bead comprising: a photochromic compound in a medium, the bead having a receptor molecule on its surface; wherein the photochromic compound confers on the bead a distinct optical signature; and wherein the receptor molecule is capable of binding to a target analyte.
Abstract:
A photocurable or thermally curable thiosulfate-containing polymer has (a) recurring units and (d) recurring units, shown as either Structure (I) or (II) and Structure (V) below: R represents the organic polymer backbone, G is a single bond or divalent linking group, Q+ is an organic charge balancing cation, M represents a charge balancing cation, and “a” represents at least 0.5 mol % and to 99.5 mol % of (a) recurring units; R″ represents the organic polymer backbone, G″ is a carbonyloxy group, R3 comprises a monovalent linear, branched, or carbocyclic non-aromatic hydrocarbon group having 1 to 18 carbon atoms, or it comprises a phenyl group having one or more such substituents, and “d” represents at least 0.5 mol % and to 99.5 mol % of (d) recurring units. These thiosulfate-containing polymers can be used to made dielectric compositions and gate dielectric layers in various devices.
Abstract:
A non-aqueous metal catalytic composition includes (a) a silver carboxylate-trialkyl(triaryl)phosphite complex comprising reducible silver ions in an amount of at least 2 weight %, (b) a silver ion photoreducing composition in an amount of at least 1 weight %, and (c) a photocurable component or a non-curable polymer or a combination of a photocurable component and a non-curable polymer. This non-aqueous metal catalytic composition can be used to form silver metal particles in situ during suitable reducing conditions. The silver metal can be provided in a suitable layer or pattern on a substrate, which can then be subsequently subjected to electroless plating to form electrically-conductive layers or patterns for use in various articles or as touch screen displays in electronic devices.
Abstract:
A non-aqueous metal catalytic composition includes (a) a silver complex comprising reducible silver ions, (b) an organic phosphite, (c) an oxyazinium salt silver ion photoreducing agent, (d) a hindered pyridine, (e) a photocurable component, a non-curable polymer, or combination of a photocurable component and a non-curable polymer, and (f) a photosensitizer different from all components (a) through (e) in the non-aqueous metal catalytic composition, in an amount of at least 1 weight %. This non-aqueous metal catalytic composition can be used to form silver metal particles in situ during suitable reducing conditions. The silver metal can be provided in a suitable layer or pattern on a substrate, which can then be subsequently subjected to electroless plating to form electrically-conductive layers or patterns for use in various articles or as touch screen displays in electronic devices.
Abstract:
The photocuring efficiency of an N-oxyazinium salt photoinitiator is increased by mixing it with an organic phosphine as a photoinitiator efficiency amplifier, and with an aryl aldehyde or alkyl aldehyde having a molecular weight of less than 1000. This mixture or photoinitiator composition can be used to cure acrylates or other photocurable compounds, particularly in an oxygen-containing environment.