The present invention relates to a novel cathode buffer layer material, and an organic or organic/inorganic hybrid photoelectric device comprising same, and, if a novel compound of the present invention is applied to a cathode buffer layer of an organic photoelectric device such as organic solar cells, organic photodiode, colloidal quantum dot solar cell, and perovskite solar cell, a surface property of an electron transfer layer is improved via a high dipole moment of the novel compound, an electron can be easily extracted from a photoactive layer to a cathode electrode, and series resistance and leakage current can be reduced, thereby having a useful industrial effect, as performance of the organic or organic/inorganic hybrid photoelectric device being manufactured, such as an organic solar cell, organic photodiode, colloidal quantum dot solar cell, and perovskite solar cell, can be significantly improved.

A quantum dot (QD) composite material includes at least three QD structural units arranged sequentially along a radial direction. Among the at least three QD structural units, each QD structural unit at a center of the QD composite material and each QD structural unit at a surface of the QD composite material have a gradient alloy composition structure with an energy level width increasing along the radial direction from the center to the surface, along the radial direction, energy levels of adjacent gradient alloy composition structures of the QD structure units are continuous. A QD structural unit located between the QD structural units at the center and the QD structural units at the surface have a homogeneous alloy composition structure.

The present disclosure provides a display panel and a manufacturing method for the display panel. The display panel includes a substrate, a switch assembly disposed on the substrate, and a light-sensing assembly disposed on a side of the switch assembly. The switch assembly comprises an indium gallium zinc oxide (IGZO) layer.

The present invention provides a display panel and a manufacturing method thereof. The display panel includes a substrate, a light-shielding metal block and a transparent conductive block disposed on the substrate, a buffer layer disposed on the substrate, the light-shielding metal block, and the transparent conductive block, and an active layer pattern disposed on the buffer layer. The active layer pattern comprises a first conductive block, the first conductive block is disposed opposite to the transparent conductive block, the first conductive block is conductively formed by a semiconductor material, and the transparent conductive block and the first conductive block constitute two electrodes of a capacitor.

A thin film of metal oxide includes zinc (Zn); tin (Sn); silicon (Si); and oxygen (O). In terms of oxide, based on 100 mol % of total of oxides of the thin film, SnO.sub.2 is greater than 15 mol % but less than or equal to 95 mol %.

A display panel includes a first substrate including a first leading line, a second substrate including a cover plate, a first electrode disposed on the cover plate in a direction of the first substrate and extending from a non-light-emitting region to light-emitting region, and a second leading line disposed on the first electrode.

A multi-junction photovoltaic device comprises a first sub-cell and a second sub-cell, the second sub-cell overlying the first sub-cell such that incident light passes through the second sub-cell before the first sub-cell. The light-receiving surface of the second sub-cell comprises a layer of a transparent conductive material and one or more metal tracks extending in a first direction and in contact with the layer of transparent conductive material. A layer of electrically insulating material is provided on the light receiving surface of the second sub-cell located under one end of the one or more metal tracks at an edge of the device, and an electrically conductive pad is provided over the layer of electrical insulator and in electrical contact with the one or more metal tracks to provide electrical contact to an external circuit.

According to one or more embodiments, an organic light-emitting device includes: a first electrode; a second electrode; an emission layer between the first electrode and the second electrode; and a hole transport region between the first electrode and the emission layer. The hole transport region includes a first compound represented by Formula 1 and a second compound represented by Formula 2: ##STR00001##

A transparent display panel, including a substrate, a first electrode layer disposed on the substrate, a light-emitting structure layer disposed on the first electrode layer, and a second electrode layer disposed on the light-emitting structure layer; the first electrode layer includes a plurality of first electrode groups arranged along a first direction; each of the first electrode groups includes at least one first electrode extending along a second direction, the second direction intersects with the first direction; each of the at least one first electrode includes at least two first electrode blocks and at least one connecting part, and two adjacent first electrode blocks are electrically connected with each other by a corresponding connecting part.

A display panel and a method for manufacturing the same, and a display device. The display panel includes a first display area and a second display area. A light transmittance of the first display area is greater than a light transmittance of the second display area, and the display panel includes: a substrate; and a light-emitting element layer including a first electrode, a light-emitting structure located on the first electrode, and a second electrode assembly located on the light-emitting structure. The second electrode assembly includes: a light-transmitting electrode, at least partially located in the first display area; a light-transmitting block located in the first display area and stacked with the light-transmitting electrode; and a second electrode located in the second display area. A material of the second electrode and a material of the light-transmitting electrode nonbind with each other.