https://physicsworld.com/a/deep-blue-leds-get-a-super-bright-non-toxic-boost/
Deep-blue LEDs get a super-bright, non-toxic boost – Physics World
Aug 21, 2025 - A new hybrid copper iodide semiconductor converts nearly all the photoenergy it receives into blue light
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https://www.rutgers.edu/news/scientists-develop-deep-blue-leds-expected-greatly-enhance-general-lighting
Scientists Develop Deep-Blue LEDs Expected to Greatly Enhance General Lighting | Rutgers University
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