The reporter learned from the China University of Science and Technology that Professor Yao Hongbin’s school group of the School of Chemistry and Materials Science has developed a simple and highly efficient method for synthesizing soluble Cu-I cluster-based hybrid fluorescent materials and using their aggregation-induced luminescence (AIE). A series of high-efficiency light-emitting water-based inks have been produced. Related research results were published in the recent issue of the German Journal of Applied Chemistry.
In recent years, Cu-I cluster-based hybrid materials have attracted attention due to their excellent photoluminescence characteristics and low cost compared to other precious metal-based luminescent materials. However, Cu-I cluster-based hybrid materials have been reported so far. - I cluster-based hybrid materials are mostly insoluble powder materials, which imposes great restrictions on their application.
Prof. Yao Hongbin’s research group successfully prepared a novel Cu-I cluster-based hybrid material with high solubility through a simple ligand exchange method, and confined the new material to smaller-sized microemulsion droplets. To study its AIE effect, it was found that the micro-emulsion without fluorescence gradually exhibits fluorescence due to the accumulation of Cu-I hybrid clusters due to solvent volatilization, and that with the passage of time, the increasingly enhanced aggregation state also leads to its The fluorescence intensity increases. In addition, a series of Cu-I cluster-based hybrid nanoparticles with different luminescent properties can be obtained by controlling the ligand species, and their photoluminescence covers the entire visible spectrum. These hybrid nanoparticles are in aqueous solution. All have good dispersibility, synthesizing its environment-friendly and high-efficiency luminescent properties, is a good choice for preparing high-efficiency fluorescent ink.
This work pioneered the AIE effect of Cu-I cluster-based hybrid materials, which is of great significance for the development of new AIE materials. In addition, such Cu-I cluster-based fluorescent inks are used in anti-counterfeiting labels, optoelectronic devices, and biological materials. The imaging and other aspects have important application prospects. Immediately after the publication of the work, it was followed by the magazine "Nature" and reported as a research highlight.
