Abstract:
The invention relates to a substrate (1) carrying a composite electrode (2) on a main face (11), said composite electrode comprising an electroconductive network (21) consisting of strands of an electroconductive material based on metal and/or metallic oxide, and having a light transmission of at least 60 % at 550 nm, the space between the strands of the network being filled by a so-called insulating filling material. The composite electrode also comprises an electroconductive coating (22) covering the electroconductive network and electrically connected to the strands, said coating having a thickness higher than or equal to 40 nm, and a resistivity pi lower than 105 Ohm. cm and higher than the resistivity of the network. The coating forms a smoothed outer surface of an electrode. The composite electrode also comprises a square resistance lower than or equal to 10 Ohm/square. The invention also relates to the production of the composite electrode and to an organic electroluminescent device (100) comprising said electrode.
Abstract:
The invention relates to a substrate (1) for an organic light-emitting device (10), especially a transparent glass substrate, comprising, on a first main face (11), a lower electrode coating (3), the electrode coating (3) consisting of a thin-film multilayer comprising, in succession, at least: a contact layer (31) based on a metal oxide and/or metal nitride; a metallic functional layer (32) having an intrinsic electrical conductivity property; and an overlayer (34) based on a metal oxide and/or metal nitride, especially for matching the work function of said electrode coating, said substrate including a bottom layer (2), said bottom layer (2) covering said main face (11).
Abstract:
The invention concerns an organic light-emitting device comprising: a substrate, in particular a transparent substrate, a first electrode and a second electrode on a common surface of the substrate, the first electrode being at least semi-transparent or transparent, a light-emitting layer interposed between the first and second electrodes. The invention is characterized in that the first electrode comprises an electroconductive diffusion layer having not less than 2% blur. The invention also concerns the use of an electroconductive diffusion layer having not less than 2% blur as electrode nearest to the substrate of an organic light-emitting device.
Abstract:
The invention relates to a substrate (1) carrying a composite electrode (2) on a main face (11), said composite electrode comprising an electroconductive network (21) which is a layer consisting of strands of an electroconductive material based on metal and/or metallic oxide, and having a light transmission of at least 60 % at 550 nm, the space between the strands of the network being filled by a so-called electroconductive filling material. The composite electrode also comprises an electroconductive coating (22) which can be separate or not from the filling material covering the electroconductive network and electrically connected to the strands, said coating having a thickness higher than or equal to 40 nm, and a resistivity pi lower than 105 Ohm. cm and higher than the resistivity of the network. The coating forms a smoothed outer surface of an electrode. The composite electrode also comprises a square resistance lower than or equal to 10 Ohm/square. The invention also relates to the production of the composite electrode and to an organic electroluminescent device (100) comprising said electrode.
Abstract:
The invention concerns an encapsulated electroluminescent device (100) comprising an electroluminescent system (1) including an active electroluminescent layer (12) disposed on a protective substrate (2) and between two electrodes (11 to 13), a protective cover (3) of said electroluminescent layer (15), secured to the substrate, means of sealing out water and vapor, a protective device (50') on the perimeter of the device at at least one part, the protective device (50) is of at least one metallic part (5a, 5b) or at least one plastic or glass part having a metallic part, the metallic part or the metallic part serving at least 20 for a first electrical connection to one of the electrodes, or in that it comprises at least one electroconductive layer deposited on one of the edges of the section of the substrate or of the protective cap and extending between the protective device and the substrate or the protective cover, for a first electrical connection to one of the electrodes.
Abstract:
The invention relates to a substrate for an organic electroluminescent device (10) that bears a discontinuous electrode (2a-2c) with a metallic functional layer having an electric-conductivity intrinsic property between a contact layer and an upper layer, wherein the electrode has a square resistance lower than or equal to 5O/square for a functional layer thickness lower than 100 nm, the electrode being the form of at least one row of electrode areas, each electrode area having a first dimension (E) of at least 3 cm in the direction (X) of said row, the electrode areas of each row being separated from each other by a so-called intra-row distance (d1) lower than or equal to 0.5 mm. The invention also relates to an organic electroluminescent device (10) comprising the same, as well as to the manufacture of said electrode and said device.
Abstract:
The invention relates to a substrate for an organic light-emitting device (10), comprising a transparent substrate (1) of optical index n0 bearing, on a first main face (11), a transparent or semi-transparent first electrode coating (3), called the bottom electrode, having a sheet resistance less than or equal to 6 O/square and which contains the following multilayer stack: an antireflection sublayer (2) of given optical thickness L1 and optical index n1 such that the n1/n0 ratio is greater than or equal to 6/5; a first metal layer of given thickness e1; a first separating layer of given optical thickness L2; a second metal sheath, having an intrinsic electrical conductivity property, of given thickness e2; and a work-function-matching overlayer, L1 being between 20 nm and 120 nm, L2 being between 75 nm and 200 nm, and the sum of the thicknesses e1 + e2 of the first and second metal layers being less than or equal to 40 nm.
Abstract:
The subject of the present invention is a multilayer electrode (3), acid etching thereof and also organic light-emitting devices incorporating it. The multilayer electrode, known as a lower electrode for an organic light-emitting device (10), successively comprises: - a contact layer (31) based on a metal oxide and/or a metal nitride; a functional metallic layer (32) having intrinsic electrical conductivity properties; a thin blocking layer (32) directly on the functional layer, the layer comprising a metallic layer having a thickness less than or equal to 5 nm and/or a layer with a thickness less than or equal to 10 nm, which is based on a substoichiometric metal oxide, substoichiometric metal oxynitride or substoichiometric metal nitride; a coating comprising an overlayer based on a metal oxide (34) for adapting the work function.
Abstract:
The invention relates to a collection of sensors embodied as an imager with a detector block made from a photosensitive material, an addressing block optionally for signal processing of signals coming from the sensor(s) and an interconnection block, located between the detector block and the addressing block, said block having connector points. The above is characterised in that the photosensitive material of the detection block contains polymorphic silicon. The invention further relates to a production method.