We developed a hybrid copper–iodide compound called CuI(Hda). It emits deep-blue light at about 449 nanometres and has an almost-perfect photoluminescence quantum yield — a measure of emission ...

LEDs are everything, from some of the largest TV screens you can buy, to the types of bulbs that you use in your home. But, not all LED materials are the same. Some are OLEDs or QLEDs, while others ...