Tohoku University Technology: The technology to improve tunnnel diode rectification performance : T22-255
Introducing a nanoparticle layer into MIM tunnel diodes to significantly improve rectification performance!
・Metal/insulator/metal tunnel diodes (MIM tunnel diodes) are used when rectifying signals of frequencies in the infrared and terahertz regions. ・ However, it is difficult to improve the rectification performance because there is a trade-off between electrical resistance and asymmetry. ・ The invention has solved the above issue by introducing metallic nanoparticle layers (NPs) into the MIM tunnel diodes and changing the tunnel barrier at forward and backward biases by the effect of electric field concentration. ・ Since the invention has greatly improved rectifying performance compared to tunnel diodes without NPs,the present tunnel diodes can be expected to be used to high-frequency devices (Optical rectenna, IR, THz detector).
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The revenue generated from technology transfer is reinvested as new research funding for universities and researchers, and is utilized to create further research outcomes. To ensure the smooth operation of this cycle, known as the "Intellectual Creation Cycle," we will vigorously promote technology transfer. The types of seeds we handle include patents, know-how, databases, and programs. We have established a collaborative framework by signing 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, and Showa Medical University.
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