Merck has announced the successful launch of the HyperOLED project, a € 4 million project funded by the European Union's Horizon 2020 research and innovation program.
Within the scope of this project, Merck, as the project coordinator, will be in close collaboration with an excellent consortium of four European partners: Microoled (France), Fraunhofer-IOF (Germany), Durham University (UK) and Intelligentsia Consultants (Luxembourg).
With the broad expertise of the consortium spanning the development and production of hyperfluorescence OLEDs, the HyperOLED project will directly target high-growth potential applications.
Over a three-year period, the HyperOLED project will develop materials and device architectures for high-performance, hyperfluorescent organic light-emitting diodes (OLEDs) for use in display applications and solid state lighting.
The main objective of the HyperOLED project is to develop innovative high performance OLEDs by combining thermally activated delayed fluorescence (TADF) molecular hosts with novel, specifically adapted shielded fluorescence emitters.
The HyperOLED project will directly contribute to the development of thin, organic and large area Electronics (TOLAE), which is an emerging technology with high growth potential.
The project will help to create reliable TOLAE-enabled devices with increased functionality, improved performance and longer lifetimes.
Accordng to the consortium these new OLEDs promise to be:
- more cost-efficient to manufacture because they are based on white OLED stacks that are easier to produce compared to current solutions
- reduce the number of layers in the OLED stacks, around 20-40% of organic materials can be saved, tact times can be reduced and less manufacturing equipment will be required
This is expected to lead to considerable savings throughout the whole value chain, including solvents, educts, catalysts in material synthesis, energy saving in purification by sublimation as well as energy saving in OLED production.
Furthermore, the special properties of TADF molecular hosts and novel shielded fluorescence emitters, the improvement in OLED performance is expected to eliminate the need for expensive and rare metals (e.g. iridium and platinum), creating additional environmental and cost-saving impacts.
The HyperOLED project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement number 732013.
The overall goal of the HyperOLED project is to develop materials and matching device architectures for high-performance, hyperfluorescence organic light emitting diodes (OLEDs) for use in display applications and solid state lighting. The innovative OLEDs will be realised by combining thermally activated delayed fluorescence (TADF) molecular hosts with novel shielded fluorescence emitters, targeting saturated blue emission of very high efficiency, especially at high-brightness levels. Further efficiency gains will be achieved through molecular alignment to enhance light outcoupling from the hyperfluorescence OLEDs. Using shielded emitters will enable simpler device structures to be used, keeping drive voltages low to be compatible with low voltage CMOS back plane electronics. This will enable demonstration of the concept’s feasibility for high-brightness, full-colour OLED microdisplays as one application example.
To develop the hyperfluorescence OLEDs, the following scientific and technical objectives will be targeted:
- Objective 1: Develop shielded emitters
- Objective 2: Develop TADF hosts
- Objective 3: Photo-physically characterise the shielded emitters and TADF hosts
- Objective 4: Anisotropic molecular orientation for enhanced performance
- Objective 5: Design and test prototype hyperfluorescence OLEDs
- Objective 6: Fabricate and evaluate demonstration hyperfluorescence microdisplays
To show the project’s overall goal has been achieved, multiple blue and white stack unit prototypes (2 x 2 mm² on 30x30mm glass substrates with ITO) will be integrated into a high-brightness microdisplay demonstrator (based on MICROOLED’s 0.38’’ WVGA CMOS backplane) and tested that demonstrate significant improvements in functionality, performance, manufacturability and reliability.