摘要:
Thin film transistors in which the active layer is an ordered film of a pthalocyanine coordination compound with a field-effect mobility greater than 10.sup.-3 cm.sup.2 /Vs and a conductivity in the range of about 10.sup.-9 S/cm to about 10.sup.-7 S/cm at 20.degree. C. are disclosed. Examples of suitable pthalocyanines include copper pthalocyanine, zinc pthalocyanine, hydrogen pthalocyanine, and tin pthalocyanine. Thin film devices made of these materials have an on/off ratio of at least about 10.sup.4. It is advantageous if the device is fabricated using a process in which the substrate is heated to a temperature in the range of about 30.degree. C. to about 200.degree. C. when the film is formed thereon.
摘要:
Organic semiconductor material can be patterned from a solution onto a substrate by selectively wetting the substrate with the solution while applying a mechanical disturbance (such as stirring the solution while the substrate is immersed, or wiping the solution on the substrate). The organic semiconductor material can then be precipitated out of the solution, for example to bridge gaps between source and drain electrodes to form transistor devices. In some embodiments, the solution containing the organic semiconductor material can be mixed in an immiscible host liquid. This can allow the use of higher concentration solutions while also using less of the organic semiconductor material.
摘要:
According to example embodiments, a method includes dispersing carbon nanotubes in a mixed solution containing a solvent, the carbon nanotubes, and a dispersant, the carbon nanotubes including semiconducting carbon nanotubes, the dispersant comprising a polythiophene derivative including a thiophene ring and a hydrocarbon sidechain linked to the thiophene ring. The hydrocarbon sidechain includes an alkyl group containing a carbon number of 7 or greater. The hydrocarbon sidechain may be regioregularly arranged, and the semiconducting carbon nanotubes are selectively separated from the mixed solution. An electronic device includes semiconducting carbon nanotubes and the foregoing described polythiophene derivative.
摘要:
A method of manufacturing an organic semiconductor thin film includes coating an organic semiconductor solution on a substrate, and shearing the organic semiconductor solution in a direction that results in a shearing stress being applied to the organic semiconductor solution to form the organic semiconductor thin film, wherein a speed of the shearing is controlled such that an intermolecular distance of the organic semiconductor solution is adjusted.
摘要:
An example embodiment relates to a method of manufacturing an array of electric devices that includes attaching a platform including a micro-channel structure to a substrate. The method includes injecting first and second solutions into the micro-channel structure to form at least three liquid film columns, where the first and second solutions include different solvent composition ratios and the liquid columns each, respectfully, include different solvent composition ratios. The method further includes detaching the platform the substrate, removing solvent from the liquid film columns to form thin film columns, and treating the thin film columns under different conditions along a length direction of the thin film columns. The solvent is removed from the thin film columns and the thin film columns are treated under different conditions along a length direction of the thin film columns.
摘要:
Input devices are provided. In accordance with an example embodiment, an input device includes an interface layer that flexes in response to pressure, a plurality of sense electrodes, a dielectric between the sense electrodes and the interface layer, and interconnecting circuitry. The dielectric compresses or expands in response to movement of the interface layer, and exhibits dielectric characteristics that vary based upon a state of compression of the dielectric. The interconnecting circuitry is to the sense electrodes and provides an output indicative of both the position of each sense electrode and an electric characteristic at each sense electrode that provides an indication of pressure applied to the dielectric adjacent the respective sense electrodes.
摘要:
Nanostructures are doped to set conductivity characteristics. In accordance with various example embodiments, nanostructures such as carbon nanotubes are doped with a halogenated fullerene type of dopant material. In some implementations, the dopant material is deposited from solution or by vapor deposition, and used to dope the nanotubes to increase the thermal and/or electrical conductivity of the nanotubes.
摘要:
Organic semiconductor material can be patterned from a solution onto a substrate by selectively wetting the substrate with the solution while applying a mechanical disturbance (such as stirring the solution while the substrate is immersed, or wiping the solution on the substrate). The organic semiconductor material can then be precipitated out of the solution, for example to bridge gaps between source and drain electrodes to form transistor devices. In some embodiments, the solution containing the organic semiconductor material can be mixed in an immiscible host liquid. This can allow the use of higher concentration solutions while also using less of the organic semiconductor material.
摘要:
Provided are a method of forming an organic semiconductor thin film and a method of manufacturing a semiconductor device using the. According to example embodiments, a method of forming an organic semiconductor thin film at least may include exposing a lower substrate coated with an organic semiconductor solution using a method of generating a shearing stress to the portion of the lower substrate coated with the organic semiconductor solution. A guide structure may be formed adjacent to the organic semiconductor solution.
摘要:
Nanotube electronic devices exhibit selective affinity to disparate nanotube types. According to an example embodiment, a semiconductor device exhibits a treated substrate that selectively interacts (e.g., chemically) with nanotubes of a first type, relative to nanotubes of a second type, the respective types including semiconducting-type and metallic-type nanotubes. The selective interaction is used to set device configuration characteristics based upon the nanotube type. This selective-interaction approach can be used to set the type, and/or characteristics of nanotubes in the device.