OLED and PLED Materials

There are two main classes of organic light-emitting diods: OLEDs (small-molecule based light emitting diodes) and PLEDs (polymer light emitting diods). Figure 1 shows a

schematic of double-heterostructure small-molecule OLED consisting of three organic layers sandwiched between the 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) typically 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.


PLEDs have relatively simple architectures, shown schematically in Figure 2. The light-emitting polymer (LEP) layer of a PLED combines 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.