Abstract: The present invention provides a pyrromethene boron complex represented by the general formula (1), a light emitting element material having high luminance efficiency, and a light emitting element: wherein X1 and X2 each may be the same or different, and are selected from the group consisting of an alkyl group, a cycloalkyl group, a heterocyclic group, an alkenyl group, a cycloalkenyl group, an alkynyl group, a hydroxyl group, a thiol group, an alkoxy group, a cycloalkoxy group, an alkylthio group, an aryl ether group, an aryl thioether group, an aryl group, a heteroaryl group, halogen and a cyano group. These functional groups may further have a substituent. Ar1 to Ar4 each may be the same or different, and are a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group. The aryl group and the heteroaryl group may be either a monocyclic ring or a fused ring.

Abstract: An organic-EL device includes an emitting-layer, first-layer adjacent to the emitting-layer near the anode, and second-layer adjacent to the emitting-layer near the cathode. The emitting-layer contains first, second and third compounds. The first-layer contains a compound of formula-(A). The second-layer contains a compound of formula-(B). The first, second and third compounds are a fluorescent compound of formula-(1), delayed-fluorescent compound of formula-(2), and compound of formula-(3), respectively. Singlet energies S1 of the first to third compounds satisfy S1(M3)>S1(M2)>S1(M1). In the formula-(A), Ra1-Ra5 etc. each represent a substituent etc. In the formula-(B), X1-X3 each represent N atom etc, Ar1 and Ar2 each represent a group of formula-(1B) etc. A represents the group of the formula-(1B). In the formula-(1B), HAr is of formula-(2B), a is 1 to 5, and L1 is a linking group etc. In the formula-(2B), X11-X18 each represent N atom etc, and Y1 represent O, S, or N atom etc.

Abstract: An object of the present invention is to provide a red-light-emitting material and a red-light-emitting element that have high luminous efficiency and excellent color purity. The present invention is a pyrromethene metal complex represented by a specific general formula.

Abstract: A semiconductor sensor includes: a substrate; a first electrode; a second electrode; and a semiconductor layer located between the first electrode and the second electrode. The semiconductor layer includes a semiconducting component to which target recognition molecules are bonded or attached, the target recognition molecule includes at least a target capture body X and a linking group L2, the target capture body X is a protein or nucleic acid having a molecular weight of 20,000 or higher and 200,000 or lower, and number of atom(s) N from the atom bonded to the semiconducting component or from the atom bonded to the group attached to the semiconducting component to the atom bonded to the atom originated from the target capture body X in the linking group L2 is 5 or more and 30 or less.

Abstract: A semiconductor element including a substrate, a first electrode, a second electrode, and a semiconductor layer disposed between the first electrode and the second electrode, wherein the semiconductor layer contains at least one selected from carbon nanotubes and graphene, and a relationship between a channel length LC and a channel width WC of the semiconductor element is 0.01?WC/LC?0.8. A semiconductor element having excellent switching characteristics and high detection sensitivity when used as a sensor is provided.

Abstract: An organic thin film light-emitting element having both high luminous efficiency and high durability can be provided using a light-emitting element material that comprises a compound having a specified carbazole skeleton.

Abstract: Provided are a light emitting device material which contains a compound having a carbazole skeleton of a specific structure and which makes it possible to achieve a light emitting device having both high luminance efficiency and durability; and a light emitting device using the light emitting device material.

Abstract: The present invention provides an organic thin-film light emitting device having both high luminance efficiency and durability due to the use of a light emitting device material containing a compound having a specific carbazole skeleton.

Abstract: Au organic thin film light-emitting element having both high luminous efficiency and high durability can be provided using a light-emitting element material that comprises a compound having a specified carbazole skeleton.

Abstract: A light emitting device material containing a pyrromethene compound represented by the general formula (1). It realized a luminescent element having a high luminescent efficiency and exellent color purity. Also provided is a luminescent element employing the materials.

Abstract: Disclosed is an organic electroluminescent element which has achieved both high luminous efficiency and low driving voltage by containing a light-emitting element material, which comprises a specific pyrene compound, in one of the layers that constitute the light-emitting element, preferably in a light-emitting layer or in an electron-transporting layer.

Abstract: The present invention provides a light emitting device material which enables a light emitting device having high efficiency and excellent chromatic purity and durability using a light emitting device material containing a pyrene compound represented by formula (1), wherein any one of R1 to R10 is a group represented by formula (2), or 1 to 4 substituents is/are group(s) represented by formula (3), and a light emitting device using the same.

Abstract: The present invention provides an organic thin-film light emitting device having both high luminance efficiency and durability due to the use of a light emitting device material containing a compound having a specific carbazole skeleton.

Abstract: A light emitting device material containing a pyrene compound of general formula (1) and a light emitting device.

Abstract: The present invention provides a light emitting device material containing a compound having a specific pyrene structure, capable of providing an organic thin-film light emitting device which enables high-efficiency light emission and low-voltage driving, and is also excellent in durability; and a light emitting device using the same.

Abstract: Provided are a light emitting device material which contains a compound having a carbazole skeleton of a specific structure and which makes it possible to achieve a light emitting device having both high luminance efficiency and durability; and a light emitting device using the light emitting device material.

Abstract: A light emitting device material containing a pyrene compound of formula (1) and a light emitting device.

Abstract: The present invention relates to an organic thin-film light emitting device containing an organic compound represented by formula (1) and a donor compound. the light emitting device can achieve both of the low-voltage driving operation and high luminance efficiency. YA1-Ar)n1??(1) (Y represents either substituted or unsubstituted pyrene, or substituted or unsubstituted anthracene. A1 is selected from the group consisting of a single bond, an arylene group, and a hetero arylene group. Ar is selected from the group consisting of a carbazolyl group, a dibenzofuranyl group, and a dibenzothiophenyl group. These groups may be substituted or unsubstituted, and n1 is an integer of 1 to 3.).

Abstract: Embodiments provide a light emitting device material characterized by containing an anthracene compound represented by the following general formula. where R19 to R37 are a hydrogen atom, alkyl group, cycloalkyl group, heterocyclic group or the like; n is 1 or 2; and A is a heteroarylene group or arylene group. Any one of the R19 to R27 and any one of the R28 to R37 are used for linking with A. The present teachings allow a light emitting device having high luminous efficiency and excellent durability.

Abstract: The present invention provides a light emitting device comprising at least an emissive layer existing between an anode and a cathode, which emits light by means of electric energy. The light emitting device contains a compound having a pyrromethene skeletal structure with a specific structure or a metal complex thereof and a naphthacene derivative, and thus the light emitting device has high luminance efficiency and excellent durability.