A process for purifying semiconducting single-walled carbon nanotubes (sc-SWCNTs) extracted with a conjugated polymer, the process comprising exchanging the conjugated polymer with an s-tetrazine based polymer in a processed sc-SWCNT dispersion that comprises the conjugated polymer associated with the sc-SWCNTs. The process can be used for production of thin film transistors and chemical sensors. In addition, disclosed herein is use of an s-tetrazine based polymer for purification of semiconducting single-walled carbon nanotubes (sc-SWCNTs).

An object of the invention is to provide an organic semiconductor element having high mobility and excellent temporal stability under high humidity, and a manufacturing method thereof. Another object is to provide a novel compound suitable for an organic semiconductor. Still another object is to provide an organic semiconductor film having high mobility and excellent temporal stability under high humidity and a composition for forming an organic semiconductor film that can suitably form the organic semiconductor film. The organic semiconductor element according to the invention includes an organic semiconductor layer containing an organic semiconductor having a repeating unit represented by Formula 1. ##STR00001##

An organic photovoltaic device includes an anode and a cathode. The organic photovoltaic device includes an active layer between the anode and the cathode. The active layer includes a p-type material. The p-type material includes a donor-acceptor (DA) polymer. An acceptor unit of the DA polymer includes a functionalized pyranopyran-dione compound or a functionalized naphthyridine-dione compound.

The invention provides: a resin as a material of a composition for forming an organic film having high filling and planarizing properties and etching resistance; the composition; and a patterning process using the composition. Provided is a composition for forming an organic film, including: (I) a resin having a structure shown by a general formula (1) in which a ring structure AR containing an aromatic ring and a spiro structure SP bonded to four of the ARs are alternately repeated in at least a portion of a repeating unit; and (II) an organic solvent.

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There is provided an organic semiconductor composition containing the following (a) to (c), a method of manufacturing an organic thin film transistor using this composition, and an organic thin film transistor including (a) and (b) in an organic semiconductor layer: (a) an organic semiconductor polymer having a specific molecular weight and a specific structure; (b) an insulating polymer having a specific molecular weight; and (c) a solvent, in which a weight-average molecular weight Mw1 of the organic semiconductor polymer and a weight-average molecular weight Mw2 of the insulating polymer satisfy a relational expression below, and

0.1Mw1/Mw210

a content C1 mass % of the organic semiconductor polymer and a content C2 mass % of the insulating polymer in the organic semiconductor composition satisfy a relational expression below.

0.1C1/C210

The invention relates to polymers having at least one repeating unit of the following formula (I): wherein Ar.sup.1, Ar.sup.2, Ar.sup.3 and Ar.sup.4, R and X, and a, b, c, d, e and f can have the meanings defined in claim 1, to processes for the preparation thereof and to the use thereof in electronic or optoelectronic devices, in particular in organic electroluminescent devices, so-called OLEDs (OLED?Organic Light Emitting Diodes). The present invention also relates to electronic or optoelectronic devices, in particular organic electroluminescent devices, which contain said polymers.

The present teachings relate to curable linear polymers that can be used as active and/or passive organic materials in various electronic, optical, and optoelectronic devices. In some embodiments, the device can include an organic semiconductor layer and a dielectric layer prepared from such curable linear polymers. In some embodiments, the device can include a passivation layer prepared from the linear polymers described herein. The present linear polymers can be solution-processed, then cured thermally (particularly, at relatively low temperatures) and/or photochemically into various thin film materials with desirable properties.

A polymer includes a first repeating unit and a second repeating unit forming a main chain, the first repeating unit including at least one first conjugated system, and the second repeating unit including at least one second conjugated system and a multiple hydrogen bonding moiety represented by Chemical Formula 1.

A process for purifying semiconducting single-walled carbon nanotubes (sc-SWCNTs) extracted with a conjugated polymer, the process comprising exchanging the conjugated polymer with an s-tetrazine based polymer in a processed sc-SWCNT dispersion that comprises the conjugated polymer associated with the sc-SWCNTs. The process can be used for production of thin film transistors. In addition, disclosed herein is use of an s-tetrazine based polymer for purification of semiconducting single-walled carbon nanotubes (sc-SWCNTs).

The present invention relates to the technical field of n-type semiconductor materials. Disclosed are an n-type conjugated polymer, a preparation method therefor, and a use thereof. In the method, using a solvent as a reaction medium, a reaction monomer is reacted under the action of a substance having oxidability to obtain an n-type conjugated polymer. The n-type conjugated polymer comprises one or more polymerization units, and the polymerization unit are of a structure of formula (I) and/or a structure of formula (II), and/or in an enol-type transformation form corresponding thereto. According to the present invention, an aromatic diketone substance having active methylene is a raw material, and is subjected to a direct polymerization reaction by means of the substance having the oxidability. The reaction does not require a noble metal for catalysis, and the n-type conjugated polymer is not sensitive to the reaction atmosphere, has a simple process and low costs, and is suitable for commercial applications. The n-type conjugated polymer of the present invention has excellent electron transport capability, higher conductivity, and better electromagnetic wave shielding effect. The n-type conjugated polymer of the present invention is applied to an organic optoelectronic device, and can achieve an excellent photoelectric effect.

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