oled organic material
In general, there are 2-3 different types of compounds used in an OLED: Hole-transport materials: Easily oxidized and conduct positive charges (holes). Electron-transport materials: Easily reduced and conduct negative charges (electrons). Emissive materials: Holes and electrons recombine and emit light.
OLED and PLED Materials. There are two main classes of organic light-emitting diodes: OLEDs (small-molecule based light emitting diodes) and PLEDs (polymer light emitting diods). A typical double-heterostructure small-molecule OLED consists of three organic layers sandwiched between electrodes.
Novaled offers OLED product manufacturers a unique combination of proprietary technology, materials and expertise, and is currently the only company licensing and selling organic conductivity doping technology and materials for use in the commercial mass production of …
OLED (Organic Light Emitting Diodes) Dow is a technology leader in active matrix OLED (organic light emitting diode) emissive materials, and has been involved in their development for the last decade.
Novaled® Materials . OLEDs consist of several functional layers, such as charge transport layers and the emissive layer. Novaled is developing numerous materials for non-emissive layers, including dopant, transport and interlayer materials.
OLED Materials for Display and Lighting. Whether modern materials for vacuum evaporation processes or inks for printing processes: As a leading technology partner, we transform innovation into marketable products and offer a unique portfolio of premium materials for organic light-emitting diodes – from well-established materials to cutting-edge
With a VTE process, the thin layers of organic material in an OLED are deposited in a high-vacuum environment. An alternate approach for manufacturing a small molecule OLED involves solution processing of the various organic materials in an OLED using techniques such as spin coating or inkjet printing onto the substrate.
OLED technology: materials, devices and display technologies. Figure 1. Basic OLED device structure. electrodes, as depicted in Fig. 1. Organic electrolu- minescent (OEL) materials, based on π-conjugated molecules, are almost insulators, and light is produced by recombination of holes and electrons which have to be injected at the electrodes.
How OLEDs Work. Like an LED, an OLED is a solid-state semiconductor device that is 100 to 500 nanometers thick or about 200 times smaller than a human hair. OLEDs can have either two layers or three layers of organic material; in the latter design, the third layer helps transport electrons from the cathode to the emissive layer.
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