Recently, a collaborative research effort involving Heilongjiang University, Tsinghua University (both in China), and the National University of Singapore has achieved a significant milestone. Their findings, which have been published in the prestigious journal Nature, mark a successful leap in overcoming a long-standing challenge: achieving efficient electroluminescence in insulating rare earth nanocrystals.
The study introduces an innovative organic semiconductor sensitization strategy. It leverages functionalized organic ligands, which act as 'optoelectronic bridges,' to facilitate efficient energy transfer to these insulating nanocrystals. This approach has dramatically enhanced the efficiency of electroluminescent devices, boosting their performance by a staggering 76 times. Moreover, the research team has achieved full-spectrum luminescence within a single device by finely regulating rare earth ions.
This groundbreaking achievement holds immense strategic importance for China's rare earth industry. It provides vital technological support for transitioning from merely exporting raw rare earth materials to exporting high-value-added technologies. Furthermore, it paves the way for a novel material system that can significantly advance next-generation information technologies, including ultra-high-definition displays, near-infrared communication, and biomedical applications.
