Michigan University Researchers Design New Fluorescent Blue OLED

Engineering scientists at the University of Michigan have developed a new fluorescent blue organic light emitting diode (OLED) with high efficiency.

OLEDs, which t already have applications in computers, TVs, and cell phones, as well as in a wide range of light sources, are seen as next generation of display technology. Light emitting efficiency of fluorescent OLEDs is less when compared to phosphorescent OLEDs.

However, John Kieffer, professor at University of Michigan, and Changgua Zhen, graduate student of the Department of Materials Science and Engineering, release their study findings that have surpassed the earlier results. The new findings show that the efficiency of fluorescent OLEDs might change. Fluorescent OLEDs’ maximum efficiency limit has been 5% traditionally. But, Kieffer and his team have now designed a fluorescent OLED with an efficiency of approximately 10%. The U-M team has designed the blue OLED material using computer simulations in Singapore.

Kieffer states that their findings forecast a bright future for efficient fluorescent OLEDs and make them ideal for lighting and flat-panel display applications. The study has been published as a paper titled, “Achieving Highly Efficient Fluorescent Blue Organic Light-Emitting Diodes Through Optimizing Molecular Structures and Device Configuration." The Institute of Materials Research and Engineering (IMRE) and the Michigan Memorial Phoenix Energy Institute (MMPEI) have provided funding for the U-M scientist’ new research.