Researchers at the University of Utah have crafted pi-conjugated polymers into wheel-shaped molecules that could make organic light-emitting diodes more energy efficient. "We made a molecule that is perfectly symmetrical, and that makes the light it generates perfectly random," said physicist John Lupton, who led the research team. "It can generate light more efficiently because it is scrambling the polarization. That holds promise for future OLEDs that would use less electricity and thus increase battery life for phones, and for OLED light bulbs that are more efficient and cheaper to operate," he said.

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