Hokkaido Univ. Technology：Optical wavelength conversion transparent film：HK25-006
A coated luminous material that absorbs ultraviolet light and emits red light
Complexes composed of the rare earth element Eu (europium) and organic molecules are materials that absorb only ultraviolet light and emit red light with high brightness and color purity, and are being developed for use in displays, lighting, and sensors. Conventional rare earth complexes have low solubility and are prone to crystallization, making them difficult to fabricate transparent molded objects or use as films directly applied to plates, etc. The present invention realizes a transparent, coatable optical wavelength conversion film by mixing a clarifying agent that reduces crystallinity into the rare earth complex. Furthermore, because it absorbs only ultraviolet light and transmits visible light, it can be used in applications such as agricultural films to promote plant growth.
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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
