Abstract: Provided is a novel compound of Chemical Formula 1: wherein Ar1 and Ar2 are each independently a substituted or unsubstituted C6-15 aryl, R1 and R2 are each independently hydrogen or deuterium, n1 is an integer of 1 to 7, and n2 is an integer of 1 to 6. Also provided is an organic light-emitting device including the compound. When a compound of Chemical Formula 1 is used as a material for hole injection, hole transport, light emission, or electron transport and injection of an organic electroluminescent device, a device having low voltage, high efficiency, and long lifetime characteristics can be obtained.

Abstract: Provided is a novel compound of Chemical Formula 1: wherein in Chemical Formula 1: Ar1 is a substituted or unsubstituted C6-20 aryl; Ar2 is a substituted or unsubstituted phenyl or a substituted or unsubstituted naphthyl; L is phenylene or naphthalenediyl, wherein the phenylene or naphthalenediyl is unsubstituted or substituted with deuterium or a C6-60 aryl; R1 and R2 are each independently hydrogen or deuterium; n1 is an integer of 0 to 6; and n2 is an integer of 0 to 8, and an organic light emitting device including the same. When compounds of Chemical Formula 1 are applied to the light emitting layer of an organic light emitting device, a device having low voltage, high efficiency, and long lifetime characteristics can be obtained.

Abstract: A positive electrode additive for a lithium secondary battery can improve atmospheric stability. A method of manufacturing the same and a positive electrode for a lithium secondary battery includes the same. The positive electrode additive for a lithium secondary battery is used to manufacture the positive electrode for a lithium secondary battery and includes a lithium (Li)-based additive core and a coating layer of NbOXCy (0?x?2.5 and 0?y?1; where Nb=niobium, O=oxygen, C=carbon) formed on a surface of the additive core.

Abstract: An organic light emitting device having improved driving voltage, efficiency and lifetime is provided. The organic light emitting device comprises an anode, a cathode, and a light emitting layer between the anode and the cathode, and the light emitting layer comprises a compound represented by Chemical Formula 1, and a compound represented by Chemical Formula 2 or 3.

Abstract: An organic light emitting device comprising an anode, a cathode, and a light emitting layer between the anode and the cathode, the light emitting layer including a compound represented by Chemical Formula 1 and a compound represented by Chemical Formula 2, and having improved driving voltage, efficiency and lifetime is provided.

Abstract: Disclosed is an ionomer for a high-temperature polymer electrolyte membrane fuel cell, which includes a phosphorus (P)-containing functional group having proton conductivity and partially contains fluorine in the main chain thereof.

Abstract: A magnetic transfer apparatus includes: a magnetomotive force source providing magnetic flux, a first magnetic flux distribution circuit connected to one end of the magnetomotive force source, having a single input terminal and a plurality of output terminals, and distributing the magnetic flux, and a second magnetic flux distribution circuit connected to the other end of the magnetomotive force source, having a single output terminal and a plurality of input terminals, and collecting the distributed magnetic flux. The output terminals of the first magnetic flux distribution circuit are disposed to be adjacent to each other to form a pair with the input terminals of the second magnetic flux distribution circuit.

Abstract: Provided is an organic light emitting device having improved driving voltage, efficiency and lifetime, the device comprising: an anode; a cathode; and a light emitting layer therebetween, wherein the light emitting layer comprises a compound of Chemical Formula 1 and a compound of Chemical Formula 2: wherein: any one of R?1 to R?12 is Chemical Formula 3, and the rest are hydrogen or deuterium: R1 is hydrogen, deuterium, or a substituted or unsubstituted C6-30 aryl or C2-60 heteroaryl containing one or more of N, O and S; Ar1, Ar2, Ar?1, and Ar?2 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing one or more of N, O and S; and the other substituents are as defined in the specification.

Abstract: Provided is an organic light emitting device comprising an anode; a cathode; and a light emitting layer therebetween, the light emitting layer comprising a compound of Chemical Formula 1 and a compound of Chemical Formula 2, the device having improved driving voltage, efficiency and lifetime: wherein: any one of R?1 to R?12 is Chemical Formula 3, and the rest are hydrogen or deuterium: Ar1, Ar2, Ar?1, and Ar?2 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing any one or more of N, O and S; R1 is hydrogen, deuterium, or a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing any one or more of N, O and S; and the other substituents are as defined in the specification.

Abstract: The present disclosure provides a seat cushion extension device for a fold-and-dive seat. The seat cushion extension device may include a pair of seat cushion side frames arranged at a predetermined interval, a seatback frame rotatably connected to the pair of seat cushion side frames and having a guide pin formed on an outer surface thereof, a seat cushion frame, a pair of links rotatably connected between the pair of seat cushion side frames and a front end of the seat cushion frame, and a pair of extension frames. Each of the pair of extension frames may have a front end connected to the seat cushion frame, and a rear end formed with a guide hole, into which a guide pin may be inserted. The seat cushion extension device may facilitate a forward extension of a seat cushion regardless of a position of a seatback of the fold-and-dive seat.

Abstract: Provided is an organic light-emitting device having improved driving voltage, efficiency and lifespan, the device comprising an anode, a cathode, and a light emitting layer including a light emitting layer that includes a compound of Chemical Formula 1 and a compound of Chemical Formula 2 between the anode and the cathode: where Ar1 and Ar2 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing at least one of N, O and S; R1 is each independently hydrogen or deuterium; R2 to R6 and R9 to R11 are each independently hydrogen or deuterium; one of R7 and R8 is ?and the other is hydrogen or deuterium; Ar3 and Ar4 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing at least one of N, O and S; and the other substituents are as defined in the specification.

Abstract: A magnetic transfer apparatus includes: a magnetomotive force source providing magnetic flux, a first magnetic flux distribution circuit connected to one end of the magnetomotive force source, having a single input terminal and a plurality of output terminals, and distributing the magnetic flux, and a second magnetic flux distribution circuit connected to the other end of the magnetomotive force source, having a single output terminal and a plurality of input terminals, and collecting the distributed magnetic flux. The output terminals of the first magnetic flux distribution circuit are disposed to be adjacent to each other to form a pair with the input terminals of the second magnetic flux distribution circuit.

Abstract: Disclosed is a group III-V compound-based micro light-emitting diode that includes an optimized passivation layer, and thus, is capable of reducing leakage current in a micro light-emitting diode. More particularly, the micro light-emitting diode includes a passivation layer that includes first and second passivation layers formed using different deposition methods, thereby being capable of efficiently reducing leakage current of sidewalls and thus improving the efficiency of a micro light-emitting diode.