Purely Organic Thermally Activated Delayed Fluorescence Materials for Organic Light‐Emitting Diodes

By M. Wong, E. Zysman‐Colman. Advances in Materials, 2017

1,543 citations recorded by the source corpus.

The design of thermally activated delayed fluorescence (TADF) materials both as emitters and as hosts is an exploding area of research. The replacement of phosphorescent metal complexes with inexpensive organic compounds in electroluminescent (EL) devices that demonstrate comparable performance metrics is paradigm shifting, as these new materials offer the possibility of developing low‐cost lighting and displays. Here, a comprehensive review of TADF materials is presented, with a focus on linking their optoelectronic behavior with the performance of the organic light‐emitting diode (OLED) and related EL devices. TADF emitters are cross‐compared within specific color ranges, with a focus on blue, green–yellow, orange–red, and white OLEDs. Organic small‐molecule, dendrimer, polymer, and exciplex emitters are all discussed within this review, as is their use as host materials. Correlations are provided between the structure of the TADF materials and their optoelectronic properties. The success of TADF materials has ushered in the next generation of OLEDs.

Subfields: Electrical and Electronic Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/6593eb5bff019851ddb24e15506f30ced049c860

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In Electrical and Electronic Engineering

1. S. Reineke
2. Hajime Nakanotani
3. R. Friend
4. J. Brédas
5. Chihaya Adachi
6. Karl Leo
7. Henning Sirringhaus
8. G. Horowitz

In Materials Chemistry

1. Hajime Nakanotani
2. S. Reineke
3. R. Friend
4. Chihaya Adachi
5. Karl Leo

Citations in the corpus

• Fast spin-flip enables efficient and stable organic electroluminescence from charge-transfer states (2020, background): “Recent developments have shown that purely organic emitters exploiting thermally activated delayed fluorescence (TADF) in OLEDs can achieve nearly 100% internal quantum efficiencies (IQE).(13,14,15,16,17) However, severe issues still plague TADFbased OLEDs: for example, operational stability and eff”