University researchers from Northumbria, Cambridge, Imperials, and Loughborough have developed a new approach that aims to simplify OLED architecture with high efficiency.
OLEDs are primarily used in TVs and smartphone screens which often get damaged easily due to their old age or daily usage.
(Photo : Patrick T. Fallon/AFP via Getty Images)
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Researchers Reveal What Weakens OLEDs' Lifespan, Structure
According to the researchers, the majority of the electric energy from an OLED gets converted to light. However, they found out that most of the energy is misdirected, leading to a weakened OLED structure.
If the OLED structure is weak, to begin with, it lowers its lifespan and efficiency, especially with blue light. The team developed a novel light-emitting molecule with incorporated shields that will regulate molecular interactions.
The researchers claimed that their creation would help "develop more efficient OLEDs that will drive down the energy consumption of our devices in the information era. As we all work towards net zero targets, this could have a significant impact for both manufacturers and consumers."
OLED Researchers Develop New Molecule to Boost Efficiency
The team detailed that while blue light-emitting pixels are necessary to produce a functional display, they could often be the source of the issues. The newly created molecule by the team has reduced the emissive layer of the blue pixel.
Despite the reduction, the team assured that the efficiency was retained. This could potentially be a solution to cost-efficient OLEDs in the future.
In addition, Dr. Daniel Congrave, co-corresponding author of the study from the University of Cambridge, said that the new molecule is "one of the narrowest emitting blue molecules out there, which is very useful for screens because it allows for high color purity."
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