摘要:
A charge-transporting varnish comprising a solution or dispersion of at least one charge-transporting polymer comprising repeating units represented by the general formula (1) in at least one solvent, wherein the polymer is at least one polymer selected from among polyimide precursors having number-average molecular weights of 1,000 to 100,000 and polyimides obtained by cyclodehydration of the precursors; a charge-transporting varnish comprising a solution or dispersion in at least one solvent of both a charge-transporting substance consisting of a charge-transporting oligoaniline derivative having a number-average molecular weight of 250 to 5,000 or a charge-transporting organic material consisting of the substance and a charge-receiving dopant and at least one charge-transporting polymer comprising repeating units represented by the general formula (1); charge-transporting thin films formed by using the varnishes; and organic electroluminescent devices provided with the thin films: (1) wherein Ar1 to Ar3 are each independently monovalent aryl; Ar4 to Ar7 are each independently divalent aryl; X1 and X2 are each independently a divalent organic group; X3 and X4 are each independently a single bond, —O—, —S—, —C(O)NH—, —NHC(O)—, imino which may be substituted with a monovalent hydrocarbon group, alkylene of 1 to 5 carbon atoms which may have a branched structure, or alkylenedioxo of 1 to 5 carbon atoms which may have a branched structure; n is 0 or a positive integer of 3 or below; and i and j are each independently 0 or 1.
摘要:
Using a charge transporting organic compound made of a polymer whose polymer main chain has a fluorene derivative, which is substituted with an amino group having an aromatic ring or heterocyclic ring, connected thereto at the 9 position thereof, e.g. a compound represented by the following formula (1), in a charge transporting thin film, the resulting organic EL element ensures low voltage drive, a high luminance, a very long life and no imperfections.
摘要:
Using a charge transporting organic compound made of a polymer whose polymer main chain has a fluorene derivative, which is substituted with an amino group having an aromatic ring or heterocyclic ring, connected thereto at the 9 position thereof, e.g. a compound represented by the following formula (1), in a charge transporting thin film, the resulting organic EL element ensures low voltage drive, a high luminance, a very long life and no imperfections.
摘要:
A polyimide-containing liquid crystal alignment treating agent having a structure of the formula (I) incorporated therein, wherein Q is a single bond or a divalent organic group, R1 to R4 represent aromatic groups, and R1 to R4 may be the same as, or different from, one another.
摘要:
An organic electroluminescence device capable of solving the problem of realization of low-voltage driving and high luminance which is important for the prolongation of the life thereof, the organic electroluminescence device comprising a luminous layer composed of a single or a plurality of organic compound thin films interposed between a positive electrode and a negative electrode, characterized in that at least one layer containing a compound having carbenium ion is arranged therein; and a charge transport material (e.g., hole transport material for the organic electroluminescence device) characterized in that a compound having carbenium ion is contained therein.
摘要:
Disclosed is a charge-transporting material comprising a heteropoly acid compound such as phosphomolybdic acid as a charge-transporting substance. Also disclosed is a charge-transporting varnish comprising the charge-transporting material and an organic solvent, wherein the charge-transporting substance is dissolved in the organic solvent. It becomes possible to provide a charge-transporting material which comprises a substance having high solubility in an organic solvent, charge-transporting properties, and an ability to oxidize hole transport materials, and a charge-transporting varnish comprising the charge-transporting material.
摘要:
Any of the oligoaniline compounds with a triphenylamine structure represented by the formula (1) exhibits satisfactory light emitting efficiency and brightness performance when used in either an OLED device or a PLED device and is further satisfactory in the solubility in organic solvents so as to be applicable to various coating methods. (each of R1 and R2 independently is a hydrogen atom, an optionally substituted monovalent hydrocarbon group, t-butoxycarbonyl, etc.; each of R3 to R34 independently is a hydrogen atom, hydroxyl, silanol, thiol, carboxyl, a phosphoric group, a phosphoric ester group, ester, thioester, amido, nitro, an optionally substituted monovalent hydrocarbon group, etc.; and each of m and n is an integer of 1 or greater provided that they satisfy the relationship m+n≦20).
摘要:
By using a charge-transporting thin film which is made of charge-transporting varnish containing, as an electron-acceptor material, a 1,4-benzodioxane sulfonic acid compound represented by the formula (1) below especially in an OLED device or a PLED device, there can be realized excellent EL device characteristics such as low driving voltage, high luminous efficiency and long life.
摘要:
Provided are charge-transporting varnishes that can form satisfactory thin films and can provide organic EL elements that can exhibit excellent emission efficiency and luminance characteristics when used for EL elements that have a structure on a substrate. The charge-transporting varnishes comprise quinone diimine derivatives represented by general formula (1) that are oligoaniline derivatives or oxides thereof, electron-accepting dopant substances or hole-accepting dopant substances, and at least one kind of silane compound. [In the formula, R1, R2 and R3 each independently represents a hydrogen atom, a halogen atom, a hydroxyl group, etc. A and B each independently represents a divalent group represented by general formula (2) or (3). (In the formulas, R4-R11 each independently represents a hydrogen atom, a halogen atom, a hydroxyl group, etc.) m and n are each independently integers of 1 or greater and satisfy m+n≦20.]
摘要:
A charge-transporting varnish comprising a phenylamino-N,N′-diphenylquinonediimine derivative represented by the formula (1) as a charge-transporting substance. It becomes possible to provide a charge-transporting varnish comprising an oxidized oligoaniline, which has a high solubility in various organic solvents and also has a good filtration property because the varnish has no aggregation property. (wherein R1 represents a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group; and R2 to R19 independently represent a hydrogen atom, a hydroxyl group, an amino group, a silanol group, a thiol group, a carboxyl group, a phosphoric acid group, a phosphate ester group, an ester group, a thioester group, an amide group, a nitro group, a substituted or unsubstituted monovalent hydrocarbon group, an organooxy group, an organoamino group, an organosilyl group, an organothio group, an acyl group, a sulfone group or a halogen atom.)