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Advancement in OLED Technology Set to Transform Technology Displays


Apr 3, 2024

A new multidisciplinary research project managed by the University of St. Andrews has the potential to improve the efficiency of televisions, computer screens, and lighting systems. Researchers from the Organic Semiconductor Centre in the School of Physics and Astronomy and the School of Chemistry have introduced a novel approach to designing efficient light-emitting materials. Their work was recently published in the journal Nature.

Light-emitting materials play a crucial role in organic light-emitting diodes (OLEDs), which are now commonly used in mobile phone displays, smartwatches, some televisions, and automotive lighting systems. The latest generation of emitter materials being developed aim to improve OLED efficiency at low brightness levels but face challenges as efficiency decreases at higher brightness levels required for lighting and outdoor applications, known as ‘efficiency roll-off.’

By identifying specific material features to address efficiency roll-off, the researchers led by Professors Ifor Samuel and Eli Zysman-Colman have developed guidelines to help OLED researchers create materials that maintain high efficiency at high brightness. This advancement opens up opportunities for the latest materials to be used in displays, lighting, and medical applications.

Professor Zysman-Colman highlighted that the research findings provide a clearer understanding of the connection between emitter material properties and OLED performance. Professor Samuel added that their new approach will contribute to the development of bright, efficient, and colorful OLEDs that consume less power. With their work recognized by Nature, there is optimism for industrial interest in implementing these advancements to achieve more efficient and cost-effective LEDs in various applications.

By editor

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