Clay/europium-based technology integrates light emission and color control promising dual-mode multifunctional displays

https://www.eurekalert.org/news-releases/1072268

"low voltage stimulated materials instantaneously undergo electrochemical reactions producing different colors... smectite clay membranes combine luminescent/ coloration molecules on electrodes instead of electrolyte, making europium(III) complexes providing vibrant luminescence, and heptyl viologen derivatives enabling striking color changes, more efficient/ stable... then applyed smectite, HV2+, Eu(hfa)3(TPPO)2 hybrid films onto indium tin oxide electrodes... more sustainable/ versatile"