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At the Paul Scherrer Institute (PSI), researchers have discovered a green luminescent substance that could enable OLEDs to deliver high light yields inexpensively and on a large scale.
Many of the materials that have been considered for OLEDs contain expensive additives such as iridium, making their large-scale application impractical. The researchers at PSI turned to the copper-containing compound CuPCP. Copper is a relatively inexpensive metal, and the compound CuPCP can be easily produced in large quantities.
CuPCP gives off an intense green glow not only when current is applied, but also under UV light. Courtesy of University of Bremen/Matthias Vogt.
At the Swiss Light Source (SLS) and the x-ray free-electron laser…