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OLED and PLED Materials

Blaze Display Technology Co., Ltd. | Updated: Sep 21, 2015

There are two main classes of organic light-emitting diods: 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. The organic layers adjacent to cathode and anode are the electron transport layer (ETL) and the hole transport layer (HTL), respectively. Emissive layer (EML) usually consists of light-emitting dyes or dopants dispersed in a suitable host material (often same as HTL or ETL material). This section of the catalog features products suitable for use in each of the OLED layers. Additional Light-Emitting Dopants and Fluorescent Dyes are available in the Photonic and Optical Materials section of the catalog.

Schematic of a double heterostructure OLED consisting of a hole transport layer (HTL), electron transport layer (ETL), emissive layer (EML), and the electrodes.


PLEDs have relatively simple architectures, with the light-emitting polymer (LEP) layer combining host, emitter and charge transport functions in a single solution-processed layer of the device. We offer a wide selection of LEPs in several major chemical classes proved to be useful for PLED research, including poly(phenylene vinylene) (PPV) and polyfluorene (PFO) polymers. Please refer to Substrates and Electrodes section for a selection of inorganic (Au, ITO, LiF) materials and substrates commonly used in OLED and PLED research.

Schematic illustration of a polymer light emitting diode (PLED). HIL = hole injection layer, usually a spin-cast film of an inherently conductive polymer (ICP).


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