Optoelectronic devices that emit warm and cool white light
Credit: © 2020 KAUST The advantages of light-emitting diodes (LEDs), such as their tiny size, low cost and excellent power efficiency, mean they are found everywhere in modern life. A KAUST team has recently developed a way of producing a white-light LED that overcomes some critical challenges. Blinking away on almost every modern electronic device, LEDs transmit messages in their own distinct shade of red, green or blue. The coloration of an LED comes from a semiconductor inside that emits over a narrow spectrum of optical wavelengths. The inability of LEDs to emit across a wider spectrum r...
Source: eurekalert.org