The present invention relates to an organic light emitting diode including an anode electrode, a cathode electrode, at least one emission layer and at least one organic semiconductor layer, wherein the at least one emission layer and the at least one organic semiconductor layer are arranged between the anode electrode and the cathode electrode and the organic semiconductor layer includes a substantially metallic rare earth metal dopant and a first matrix compound, the first matrix compound including at least two phenanthrolinyl groups as well as to a method for preparing the same.

The present invention provides for an inorganic nanostructure-organic polymer heterostructure, useful as a thermoelectric composite material, comprising (a) an inorganic nanostructure, and (b) an electrically conductive organic polymer disposed on the inorganic nanostructure. Both the inorganic nanostructure and the electrically conductive organic polymer are solution-processable.

The fabrication and characterization of large scale inverted organic solar array fabricated using all-spray process is disclosed. Solar illumination has been demonstrated to improve transparent solar photovoltaic devices. The technology using SAM has potential to revolute current silicon-based photovoltaic technology by providing a complete solution processable manufacturing process. The semi-transparent property of the solar module allows for applications on windows and windshields. The inventive modules are more efficient than silicon solar cells in artificial light environments. This significantly expands their use in indoor applications. Additionally, these modules can be integrated into soft fabric substances such as tents, military back-packs or combat uniforms, providing a highly portable renewable power supply for deployed military forces.

An optical device (10) has a joining structure in which a first conductive film (110) and a second conductive film (130) are joined to each other. The first conductive film (110) that constitutes the joining structure is constituted by a transparent conductive material and the like. In addition, the second conductive film (130) that constitutes the joining structure is constituted by a metal material. A transition region, in which the transparent conductive material and the metal material are mixed, exists between the first conductive film (110) and the second conductive film (130). The transparent conductive material includes, for example, a conductive polymer.

The display device includes light-emitting elements. Each of light-emitting elements includes a light-emitting layer containing quantum dots each including a core and a shell larger in energy gap than the core; and a hole-transport layer, adjacent to the light-emitting layer, containing a p-type doping material and an organic hole-transport material. The plurality of light-emitting elements includes: a first light-emitting element including a first light-emitting layer as the light-emitting layer; a second light-emitting element including a second light-emitting layer as the light-emitting layer; and a third light-emitting element including a third light-emitting layer as the light-emitting layer. A peak wavelength of light emitted by the first light-emitting layer is longer than a peak wavelength of light emitted by the second light-emitting layer. The peak wavelength of the light emitted by the second light-emitting layer is longer than a peak wavelength of light emitted by the third light-emitting layer.

From a viewpoint of achieving a high-performance organic light-emitting element, ensuring a certain degree of flatness in a coating film obtained by a wet film forming method may not be sufficient. As a result, a desired performance of an organic light-emitting element to be obtained, may not be obtained. Therefore, an object of the present invention is to provide an ink composition for an organic light-emitting element, which can prevent the generation of waviness. There is provided an ink composition for an organic light-emitting element, including: an organic light-emitting element material; a leveling agent; and a solvent, in which the leveling agent is a block copolymer formed by performing copolymerization of at least a siloxane monomer and a hydrophobic monomer.

An organic light emitting diode includes a first electrode and a second electrode overlapping each other, an emission layer disposed between the first electrode and the second electrode, and a hole transport layer disposed between the first electrode and the emission layer, the hole transport layer having a refractive index in a range of 1.0 to 1.6, in which the organic light emitting diode has a microcavity structure between the first electrode and the second electrode.

A photovoltaic device is provided. The photovoltaic device includes a metal salt layer disposed adjacent to a perovskite layer. The metal salt layer diffuses into the perovskite layer. Methods for fabricating the photovoltaic device are also provided.

The present disclosure provides a light-emitting device, a manufacturing method thereof, and a display device. The light-emitting device includes an anode, a cathode, a light-emitting layer between the anode and the cathode, and a hole transport layer between the anode and the light-emitting layer. The hole transport layer includes a first compound and a second compound, and an absolute value of an energy level of the highest occupied molecular orbital of the second compound is greater than or equal to 5 eV and less than or equal to 6.5 eV.

The present invention relates to a method for manufacturing a photovoltaic device comprising: —forming a porous first conducting layer on one side of a porous insulating substrate, —coating the first conducting layer with a layer of grains of a doped semiconducting material to form a structure, —performing a first heat treatment of the structure to bond the grains to the first conducting layer, —forming electrically insulating layers on surfaces of the first conducting layer, —forming a second conducting layer on an opposite side of the porous insulating substrate, —applying a charge conducting material onto the surfaces of the grains, inside pores of the first conducting layer, and inside pores of the insulating substrate, and—electrically connecting the charge conducting material to the second conducting layer.