Unleashing a new era of color tunable nano-devices: Smallest ever light source with switchable colors formed

https://phys.org/news/2023-08-unleashing-era-tunable-nano-devices-smallest.html

"increase resolution, energy efficient... 2 coupled semiconductor nanocrystals emit light in 2 different colors, electric field tune relative emission from each center, changing color (reversible) without losing brightness... 1 constituent nanocrystals tuned to emit green, other red... detecting and measuring electric fields... display designs where each pixel can be individually controlled to produce different colors simplifying RGB display to smaller basis of pixels... displays, lighting, fast optical fiber-communication networks, field sensing"

Related: Scientists develop tunable colored films for displays and sensors
https://phys.org/news/2024-03-scientists-tunable-displays-sensors.html