<ul><li>Scientists at Linköping University in Sweden are developing perovskite LEDs that are cheaper, easier to make, and more colorful.</li><li>A study conducted by researchers analyzed the environmental impact of perovskite LEDs and suggested replacing gold with cheaper and safer materials like copper, aluminum, or nickel.</li><li>The main challenge for perovskite LEDs is their current lifespan, which needs to be improved to at least 10,000 hours for real-world applications.</li><li>With further advancements, perovskite LEDs have the potential to replace traditional LEDs, providing a brighter, cheaper, and more environmentally friendly lighting solution.</li></ul>

Scientists develop cheaper and greener LEDs that could change the future

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