Nissan Chemical Industries Limited

Nissan Chemical Industires, Ltd.

Nissan Chemical Corporation

Naoki Otani

Masahiro Ueda

Tadayuki Isaji

Takayoshi Kawasaki

Hitoshi Furusho

Nobuyuki Kakiuchi

Hirofumi Ota

Tatsuo Okauchi

Taku Kato

Naoki Nakaie

Shinichi Maeda

Tohru Minami

Provided is a production method for a carbon-based light-emitting material that generates light having a wavelength of 500 to 700 nm when exposed to excitation light having a wavelength of 300 to 600 nm. The production method comprises a step for mixing and heating a starting material containing ascorbic acid, an acid catalyst containing an inorganic acid, and a solvent.

Production method for carbon-based light-emitting material

Provided is a method for manufacturing a carbonaceous luminescent material in which a polycarboxylic-acid-containing starting material, an acid catalyst, and a solvent are mixed together and heated.

Method for manufacturing carbonaceous luminescent material

A charge-transporting thin film, which enables the achievement of an organic EL element having excellent durability in cases where the charge-transporting thin film is applied to a hole injection layer of the element, is obtained using a charge-transporting varnish that contains a charge-transporting substance, a nonionic fluorine-containing surfactant and an organic solvent, and wherein the nonionic fluorine-containing surfactant has, for example, a perfluoroalkenyl group-containing perfluorohydrocarbon structure represented by one of formulae (1)-(3) and an alkylene oxide structure. 

Charge-transporting varnish

Provided is a fluorine atom-containing polymer which is a condensation polymer of a fluorene derivative that provides a repeating unit represented by formula (1), a fluorene derivative that provides a repeating unit represented by formula (2) and a fluorene derivative that provides a repeating unit represented by formula (3). 

Fluorine atom-containing polymer and use of same

Provided are a fluorine-atom-containing polymer that is a condensation polymer of a fluorine-atom-containing triphenylamine derivative giving a repeating unit represented by formula (1) and a fluorine derivative giving a repeating unit represented by formula (2) and the use of this fluorine-atom-containing polymer. (In the formulas, A represents a fluoroalkanediyl group, at least one of Rand Rrepresents any of an alkoxyl group, an alkenyloxy group, an alkynyloxy group, an aryloxy group, a heteroaryloxy group, and an alkyl group including at least one ether structure, R-Rrepresent prescribed substituents, mand meach independently represent an integer of 0-4, nand nrepresent an integer of 0-3.)

Fluorine-atom-containing polymer and use thereof

Provided is a charge-transporting varnish which includes a charge-transporting material including fluorine atoms, a charge-transporting material not including fluorine atoms, a dopant material comprising heteropoly acid, and an organic solvent, said charge-transporting material including fluorine atoms being a polymer of weight-average 1,000 to 200,000 molecular weight obtained by condensing a triarylamine compound, an aryl aldehyde compound including fluorine atoms, and a fluorine derivative having a carbonyl group, and said charge-transporting material not including fluorine atoms being an oligoaniline compound. The charge-transporting varnish provides a thin film which, even in a case of being used as a single layer in contact with and in between an anode and a luminescent layer, is capable of achieving an organic EL element having superior luminance characteristics and durability.

Provided are a thin-film planarization method, a planarized thin-film formation method, and a thin-film formation varnish to be used in these methods, in which when forming a thin film using a thin-film formation varnish which includes an organic compound and an organic solvent, the varnish flow activation energy is set to no more than 28 kJ/mol.

Thin-film planarization method, planarized thin-film formation method, and thin-film formation varnish

A charge-transporting varnish which contains a charge-transporting substance containing fluorine atoms, a charge-transporting substance containing no fluorine atoms, a dopant substance composed of a heteropolyacid, and an organic solvent. The charge-transporting substance containing fluorine atoms is a polymer which is obtained by condensing a triaryl amine compound, an arylaldehyde compound containing fluorine atoms, a fluorene derivative having a carbonyl group and a carbazole derivative having an alkyl group or an alkyl group containing an ether structure in the N-position, and which has a weight average molecular weight of 1,000-200,000. The charge-transporting substance containing no fluorine atoms is an oligoaniline compound. A thin film formed from this charge-transporting varnish is capable of providing an organic EL element having excellent luminance characteristics and durability even in cases where the thin film is used as a single layer between a positive electrode and a light emitting layer in such a manner that the thin film is in contact with the positive electrode and the light emitting layer.

Disclosed is a phthalocyanine compound characterized by being represented by the formula (1) below. This phthalocyanine compound has good affinity to titania, and is suitably used for an organic thin film of an organic solar cell and the like. [In the formula, M represents a hydrogen atom or a central metal; Zand Zindependently represent a hydroxy group, an alkoxy group having 1 to 18 carbon atoms or a phenyl group; and Ar represents at least one aryl group selected from those represented by the following formulae (2) to (12). (In the formulae (2) to (12), Rto Rindependently represent a hydrogen atom, a halogen atom, a hydroxy group, an amino group, a silanol group, a thiol group, a carboxyl group, a phosphoric acid group, a phosphate group, an ester group, a thioester group, an amide group, a nitro group, a monovalent hydrocarbon group, an organoxy group, an organoamino group, an organosilyl group, an organothio group, an acyl group or a sulfone group.)]

Phthalocyanine compound

A thiophene compound having a phosphate group, for example, one represented by the formula [1]. The compound has high resistance to heat and oxidation and can be improved in solubility or dispersibility in various solvents. (In the formula, Rand Reach independently represents, e.g., hydrogen, halogeno, cyano, or phenyl optionally substituted by W; and Rto Reach independently represents &#x2014;OR, SR, or &#x2014;NR, provided that Rto Reach independently represents hydrogen, Calkyl, or phenyl optionally substituted by W and W represents halogeno, cyano, nitro, hydroxyl, mercapto, amino, formyl, carboxy, Calkyl, etc.)

Thiophene compound having phosphoric ester and process for producing the same

A thiophene compound having sulfonyl groups which is represented by the formula [1]. It has high heat resistance and high unsusceptibility to oxidation and can improve solubility and dispersibility in various solvents. [In the formula, Rand Reach independently represents hydrogen, halogeno, cyano, etc.; and Rand Reach independently represents Calkyl, Chaloalkyl, phenyl optionally substituted by W, thienyl optionally substituted by W, etc. (W represents chlorine, etc.).]

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Naoki Otani