Provided are a polymer semiconductor including a first structural unit represented by Chemical Formula 1 and a second structural unit represented by Chemical Formula 2, a stretchable polymer thin film including the same, and an electronic device.

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Definitions of Chemical Formulas 1 and 2 are as described in the detailed description.

A semiconductor memory device includes a plurality of semiconductor patterns extending in a first horizontal direction and separated from each other in a second horizontal direction and a vertical direction, each semiconductor pattern including a first source/drain area, a channel area, and a second source/drain area arranged in the first horizontal direction; a plurality of gate insulating layers covering upper surfaces or side surfaces of the channel areas; a plurality of word lines on the upper surfaces or the side surfaces of the channel areas; and a plurality of resistive switch units respectively connected to first sidewalls of the semiconductor patterns, extending in the first horizontal direction, and separated from each other in the second horizontal direction and the vertical direction, each resistive switch unit including a first electrode, a second electrode, and a resistive switch material layer between the first and second electrodes and including carbon nanotubes.

A metal complex having at least one N-heterocyclic carbene ligand. The metal complex provides a blue emission. This is useful for organic light emitting diode (OLED) components where blue emitters have trailed behind the advances of red and green emitters.

Provided are organometallic compounds including a ligand L.sub.A of the following Formula I

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Also provided are formulations including these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.

A compound including a first ligand L.sub.A of Formula I,

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is disclosed. In Formula I, ring B is a 5- or 6-membered ring; X.sup.1, X.sup.2, and X.sup.3 are each CR.sup.A or N; R is a 5- or 6-membered carbocyclic or heterocyclic ring, which can be further fused or substituted; and (1) when ring B is an unfused 6-membered ring, X.sup.1 and X.sup.2 are N, and X.sup.3 is C; and (2) when ring B is a fused 6-membered ring, ring B has the structure of Formula II,

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In this structure, the wavy line indicates the point of connection to ring A; Q.sup.1 to Q.sup.6 are each C or N; and, when proviso (2) applies, (I) at least one of X.sup.1, X.sup.2, and X.sup.3 is N; or (II) R is two or more fused or unfused 5- or 6-membered carbocyclic or heterocyclic rings, or (III) at least ring A or R is substituted with a partially or fully deuterated alkyl or partially or fully deuterated cycloalkyl group.

A wavelength conversion member including a wavelength conversion layer containing a fluoride phosphor, quantum dots, a surfactant, and a resin. The fluoride phosphor contains fluoride particles having a specific composition and having particle size values within specific ranges. The quantum dots include at least one selected from a first crystalline nanoparticle and a second crystalline nanoparticle. The first crystalline nanoparticle has a specific composition. When irradiated with light having a wavelength of 450 nm, the first crystalline nanoparticle emits light having an emission peak at a wavelength in a range from 510 nm to 535 nm, and a full width at half maximum of the emission peak of the first crystalline nanoparticle is in a range from 10 nm to 30 nm. The second crystalline nanoparticle includes a chalcopyrite-type crystalline structure, and a full width at half maximum of the emission peak of the second crystalline nanoparticle is 45 nm or less.

An organic electroluminescence device includes: a cathode; an anode; and an organic thin-film layer disposed between the cathode and the anode, the organic thin-film layer having one or more layers including an emitting layer, in which the emitting layer includes a first material represented by the following formula (1) and a second material in a form of a fluorescent dopant material. ##STR00001##

A method for depositing a conductive coating on a surface is provided, the method including treating the surface by depositing fullerene on the surface to produce a treated surface and depositing the conductive coating on the treated surface. The conductive coating generally includes magnesium. A product and an organic optoelectronic device produced according to the method are also provided.

The present invention describes diazadibenzofuran or diazadibenzothiophene derivatives substituted by carbazole, fluorene, phenanthrene, benzofuran and/or benzothiophene groups, especially for use in electronic devices. The invention further relates to a process for preparing the compounds of the invention and to electronic devices comprising these.

The present invention relates to an organic electroluminescent device, particularly to an organic light emitting diode (OLED) including an ETL stack of at least two electron transport layers, wherein the first electron transport layer comprises a first electron transport matrix compound and the second electron transport layer comprises second electron transport matrix compound and a redox n-dopant, and a device comprising the OLED.