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TADF Materials


Thermally activated delayed fluorescence (TADF) materials are an alternative to fluorescent and phosphorescent compounds as light emitters for organic light-emitting diodes (OLEDs). TADF emitters can harness triplet state electrons, maximizing the internal quantum efficiency of TADF OLEDs. Advances in molecular engineering have led to the development of TADF materials with efficient intramolecular charge transfer, contributing to high device efficiencies.

TADF molecules, commonly referred to as third-generation OLED materials, offer the potential for high OLED efficiencies without the use of heavy metals. TADF OLED devices are set to be cheaper as TADF materials are available at a lower cost than fluorescent and phosphorescent materials. Current research aims to create a stable blue emitter with a usable lifetime something that has proved difficult with earlier generation OLED materials.

Explore our extensive range of TADF materials, including TPBi, 4CzIPN and CzSi, to find high-performance materials at an affordable price.

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Browse TADF Materials by Collection


TADF Host Materials Collection

TADF Host Materials

TADF Host Materials

Explore our range of TADF host materials.

TADF Host Materials Collection

MR-TADF Materials

MR-TADF Materials

Explore our range of MR-TADF materials.

Browse TADF Materials


Related categories: OLED materials, transport layer materials, OLED dopant materials, OLED host materials

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Resources and Support


thermally activated delayed fluorescence Thermally Activated Delayed Fluorescence (TADF)

Thermally Activated Delayed Fluorescence (TADF) is a mechanism by which triplet state electrons can be harvested to generate fluorescence.

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MR-TADF Multi-Resonance Thermally Activated Delayed Fluorescence (MR-TADF)

Multiple resonance thermally activated delayed fluorescence (MR-TADF) is a light emitting process engaging the same working principle as thermally activated delayed fluorescence (TADF).

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Intramolecular charge transferWhat is Intramolecular Charge Transfer (ICT)?

Intramolecular charge transfer (ICT) refers to the transfer of charge within a single molecule (intra = “within” in Latin). In molecules containing one or more electron donor and acceptor groups, ICT can occur if the molecule is in an excited state.

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How are Solar Panels Made? Step by Step Process Exciplex and Excimer: Formation and Emission

An exciplex (or excited complex) is a complex formed from two different molecules, where one molecule is in an excited state (donor) and the other is in the ground state (acceptor). Both are typically conjugated semiconducting molecules. This short-lived complex will occur when the molecules are in close proximity to one another, and it results in a lower energy than if the two existed separately in their excited and ground states.

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MR-TADF Molecular Design Principles of MR-TADF Materials

The design of multiple resonance thermally activated delayed fluorescent (MR-TADF) materials requires careful selection of molecular scaffolds and substituents to achieve the desired photophysical properties i.e. color and color purity.

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MR-TADF Hyperfluorescence: The Next Generation of OLED

Hyperfluorescence organic light-emitting diodes (HF-OLEDs) represent the 4th generation of OLED technology. Find out more.

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