Provided is an intrinsically stretchable organic solar cell, a manufacturing method thereof, and an electronic device comprising the same. The intrinsically stretchable organic solar cell of the present invention is characterized that wherein excellent interfacial bonding among stretchable constituent elements constituting each layer is induced so that the constituent elements are seamlessly integrated into a single system, thereby ensuring excellent initial power conversion efficiency (PCE), and mechanical robustness showing that 70% or more of initial PCE is maintained in spite of repetitive tensile strains. Thus, the organic solar cell is useful for an electronic device applied to any one selected from a group consisting of sensors, electronic skins, flexible displays, and stretchable displays.

The optical multilayer film, which comprises a laminate in which a base layer, a primer layer, a hard coat layer, a first refractive layer, and a second refractive layer are sequentially laminated, has a very low reflectance and enhanced optical characteristics by adjusting the in-plane retardation of the base layer and the refractive indices of the respective layers. Thus, the optical component and the display device, which comprise the optical multilayer film, have a low reflectance and excellent other optical characteristics.

It is an object of the present invention to provide a polymer organic EL element that has a low driving voltage, high light emission efficiency, and a long lifespan. The present invention provides an organic electroluminescence element having a pair of electrodes and at least one organic layer between the electrodes, wherein the organic layer is constituted by two or more high molecular weight compounds including at least high molecular weight compounds α and β, and the high molecular weight compound α has a substituted triarylamine structural unit represented by a general formula (1) below and has a weight average molecular weight of 10,000 or more and less than 1,000,000 in terms of polystyrene. For the symbols in the formula, see the Description.

##STR00001##

The present specification relates to a polymer and an organic light emitting device using the same, wherein the polymer is represented by the following Chemical Formula 1:

E1-[A].sub.a—[B].sub.b—[C].sub.c-E2  [Chemical Formula 1] Wherein A, B, C, E1, E2, a, b and c are described herein.

A method comprised of combining

##STR00001## form a solution containing a polymer

##STR00002##

In this polymer R, R′, and R″ are independently selected from the group consisting of: H, Cl, F, CN, alkyl, alkoxy, alkylthio, ester, ketone and aryl groups; and X is selected from aryl groups.

The present disclosure relates to a device that includes a first layer that includes at least one of a semiconducting material, a hole transport material (HTM), and/or an electron transport material (ETM), a second layer, and a third layer that includes a material that is at least one of transparent or conductive, where the second layer is positioned between the first layer and the third layer, the first layer, the second layer, and the third layer are in electrical contact with each other, and the third layer has a first thickness between greater than zero nm and about 100 nm. In some embodiments of the present disclosure, the semiconducting material may include a perovskite.

A light-emitting element containing a light-emitting material with high light emission efficiency is provided. The light-emitting element includes a high molecular material and a guest material. The high molecular material includes at least a first high molecular chain and a second high molecular chain. The guest material has a function of exhibiting fluorescence or converting triplet excitation energy into light emission. The first high molecular chain and the second high molecular chain each include a first skeleton, a second skeleton, and a third skeleton, and the first skeleton and the second skeleton are bonded to each other through the third skeleton. The first high molecular chain and the second high molecular chain have a function of forming an excited complex.

The invention relates to novel compounds containing one or more units derived from 2,6-disubstituted-[1,5]naphthyridine or 1,6-disubstituted-1H-[1,5]naphthyridine-2-one, to methods for their preparation and educts or intermediates used therein, to mixtures and formulations containing them, to the use of the compounds, mixtures and formulations as organic semiconductors in organic electronic (OE) devices, especially in organic photovoltaic (OPV) devices and organic photodetectors (OPD), and to OE, OPV and OPD devices comprising these compounds, mixtures or formulations.

As a means for providing an electroluminescent device capable of achieving high luminance, high efficiency, and at the same time excellent device life-span, a polymer having an overlap index of greater than or equal to about 0.00001 and less than or equal to about 1.8, and a polymer including a structural unit represented by Chemical Formula (1) are provided:

##STR00001##

The invention relates to organic semiconducting compound and organic photoelectric components containing the organic semiconducting compound. The organic semiconducting compound is designed with a novel chemical structure, so that the compound demonstrates a good response value in the infrared light range, which is suitable for organic photoelectronic components, such as organic photodetector (OPD) or organic field-effect transistor (OFET), which come with a wavelength range of better absorbance and lower interference rate when in use.