A groundbreaking study has unveiled a novel coating that allows rare earth materials to emit light when powered by electricity. This innovation, spearheaded by a collaborative team from Heilongjiang University, Tsinghua University, and the National University of Singapore, was recently published in the prestigious journal Nature. Rare earth nanocrystals, known for their vibrant and stable light emission, have traditionally been limited in electric-driven applications like LEDs and OLEDs due to their insulating properties. ‘It’s akin to running in a heavy winter coat,’ explained Han Sanyang, an associate professor at Tsinghua University, highlighting the challenge of electricity reaching these materials. The team’s solution involves a specialized molecular coating that acts as an ‘energy-conversion layer,’ efficiently transferring electrical energy to the nanocrystals, which then produce adjustable, high-purity light. This breakthrough paves the way for applications in human health monitoring, non-invasive testing, and agricultural lighting. The researchers are now refining the technology, particularly for healthcare and infrared uses.
Scientists design new coating for rare earth materials to glow when powered by electricity
