Hokkaido Univ. Technology ：Red light emitter (ultraviolet light excitation type)：HK24-004
Europium light emitting body having high brightness and high heat resistance
Phosphors are used in lighting and displays, and in recent years, fluorescent dyes, as well as inorganic phosphors, have been attracting attention. Organic-inorganic hybrid materials composed of organic molecules and rare earth elements emit strong light when excited by ultraviolet light and have high color purity, making them promising for use in lighting effects that are more beautiful than conventional light-emitting materials. The present invention relates to a rare earth complex composed of europium (Eu) and organic molecules. By introducing a fused polycyclic aromatic group into the ligand of this complex, it has a large molar absorption coefficient for visible ultraviolet light, highly efficient energy transfer to Eu(III), and high-intensity emission. This complex also has high heat resistance, approaching 300℃.
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The revenue generated from technology transfer is reinvested into universities and researchers as new research funding, which is used to create further research outcomes. To ensure the smooth operation of this cycle, known as the "Intellectual Creation Cycle," we will actively promote technology transfer. The types of seeds we handle include patents, know-how, databases, and programs. We have established a collaborative framework by concluding basic technology transfer agreements with the following universities (as of June 1, 2025): - Tohoku University - Hirosaki University - Iwate University - Akita University - Fukushima University - Yamagata University - Tohoku Gakuin University - Iwate Medical University - Fukushima Medical University - Aizu University - Miyagi University - Hokkaido University - Muroran Institute of Technology - Showa Medical University
