Daicel Corporation

The University of Tokyo

Takeshi Yokoo

Yasuyuki Akai

Youji Suzuki

Junichi Takeya

Toshihiro Okamoto

Daiji Ikeda

Tadanori Kurosawa

Yu Yamashita

Dinghai Cen

Provided is a compound that is excellent in chemical stability, has high solubility in a solvent, and exhibits excellent carrier mobility. A compound represented by Formula (1):

Compound and application thereof

Provided is a conductor material having high conductivity. The conductor material according to an embodiment of the present disclosure has a configuration in which a conjugated polymeric compound having an electron donating group containing a heteroatom in a side chain is doped with a dopant containing an anion selected from a nitrogen anion, a boron anion, a phosphorus anion and an antimony anion, and a counter cation. The anion is preferably an anion represented by Formula (1) below: where Rand Rare identical or different, and each represent an electron withdrawing group; and Rand Rmay be bonded to each other to form a ring with an adjacent nitrogen atom.

Conductor material

Provided is a dopant with which a conductor material having high electrical conductivity can be formed. The present disclosure relates to a dopant containing a radical cation represented by Formula (1) and a counter anion. In Formula (1), Rto Rmay be the same or different, and each denotes a monovalent aromatic group or a group represented by Formula (r). at least one of Rto Ris a group represented by Formula (r), and n indicates the valence of the radical cation and is equal to the quantity (n) of nitrogen atoms in the formula. In Formula (r), Ar, Ar, and Armay be the same or different, and each denotes a divalent aromatic group, and Ar, Ar, Ar, and Armay be the same or different, and each denotes a monovalent aromatic group optionally having a substituent represented by Formula (sb) below. Furthermore, m and n may be the same or different, and each represents an integer of 0 or greater.

Dopant and conductor material

An object of the present invention is to provide an ink composition for manufacturing an organic semiconductor device, the ink composition allowing an organic semiconductor material with a rigid main chain into an ink having an optimal solute concentration for a single-crystal formation process. The present invention provides an ink composition for manufacturing an organic semiconductor device, the ink composition including at least one solvent selected from Naphthalene Compound (A) and at least one solute. The isomer content of Naphthalene Compound (A) is preferably 2% or less in terms of a percentage for peak area with Naphthalene Compound (A) being 100% in gas chromatography. Naphthalene Compound (A): a compound represented by Formula (a), where in Formula (a), R is as defined in the description.

Ink composition for manufacturing organic semiconductor device

Provided is a composition for manufacturing an organic semiconductor device, the composition enabling formation of an organic semiconductor device that stably shows high carrier mobility. A composition for manufacturing an organic semiconductor device contains 2,3-dihydrobenzofuran as a solvent and an organic semiconductor material below, in which the water content of the solvent is 0.25 wt % or less. The organic semiconductor material: at least one compound selected from the group consisting of a compound represented by formula (1-1), a compound represented by formula (1-2), a compound represented by formula (1-3), a compound represented by formula (1-4), a compound represented by formula (1-5), and a compound represented by formula (1-6). wherein Xand Xare the same or different and each represent an oxygen atom, a sulfur atom, or a selenium atom, m is 0 or 1, nand nare the same or different and each represent 0 or 1, and Rand Rare the same or different and each represent a fluorine atom, a Calkyl group, a Caryl group, a pyridyl group, a furyl group, a thienyl group, or a thiazolyl group, in which 1 or 2 or more hydrogen atoms contained in the alkyl group may be substituted by a fluorine atom, and in which 1 or 2 or more hydrogen atoms contained in the aryl group, the pyridyl group, the furyl group, the thienyl group, and the thiazolyl group may be substituted by a fluorine atom or an alkyl group having 1 to 10 carbon atoms.

Composition for manufacturing organic semiconductor device

Provided is a solvent for organic transistor production. The solvent has excellent solubility for organic semiconductor materials and enables formation of an organic transistor having high crystallinity. The solvent according to the present invention for organic transistor production includes a solvent A represented by Formula (a). In the formula, Ring Z represents a ring selected from an aromatic carbon ring, a 5- to 7-membered alicyclic carbon ring, and a 5- to 7-membered heterocyclic ring; Rrepresents a group selected from oxo, thioxy, &#x2014;OR, &#x2014;SR, &#x2014;O(C&#x2550;O)R, &#x2014;RO(C&#x2550;O)R, and substituted or unsubstituted amino; and Rrepresents a group selected from hydrogen, C-Calkyl, aryl, and &#x2014;OR, where Rand Rmay be linked to each other to form a ring with one or more carbon atoms constituting Ring Z. 

Solvent for producing organic transistor

Solvent or solvent composition for organic transistor production, which is excellent in solubility of an organic semiconductor material, and which can form an organic transistor high in crystallinity. The solvent or solvent composition for organic transistor is a solvent or solvent composition for organic semiconductor material dissolution, and includes a solvent 'A' represented by the formula (R)N(R)&#x2014;C(&#x2550;O)&#x2014;(R)N(R) wherein Rto Rare the same or different, and each represents a Calkyl group, or Rand Rmay be bound to one another to form a ring together with the &#x2014;N(R)&#x2014;C(&#x2550;O)&#x2014;N(R)&#x2014; moiety as well as an organic semiconductor material.

Solvent or solvent composition for organic transistor production

Provided is an insulating coating composition. The composition is highly safe, in which an organic material to form an insulating film is dissolved highly stably. The composition can form an insulating film by coating, where the insulating film has a low relative permittivity, a high insulation resistance, and high wettability and allows an upper layer to be formed thereon by coating. The insulating coating composition according to the present invention contains a cyclic olefin copolymer and a solvent. The cyclic olefin copolymer is a copolymer between a cyclic olefin and a chain olefin. The solvent includes a compound represented by Formula (1) and having a normal boiling point of 100&#xb0; C. to lower than 300&#xb0; C. In Formula (1), Ring Z is a ring selected from a 5- or 6-membered saturated or unsaturated cyclic hydrocarbon and a benzene ring; and Ris selected from a hydrocarbon group and acyl. Ring Z has a substituent or substituents including the RO group. When Ring Z has two or more substituents, two of the substituents may be linked to each other to form a ring with a carbon atom or atoms constituting Ring Z. 

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Himeji, Japan

Takeshi Yokoo