The technology to improve tunnnel diode rectification performance

Introducing a nanoparticle layer into MIM tunnel diodes to significantly improve rectification performance!

Overview

・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).

Features・Outstandings

Product Application

・Optical rectenna　
・IR, THz detecter

Related Works

[1] Zen Liu, Shunsuke Abe, Makoto Shimizu, Hiroo Yugami Appl. Phys. Lett. 122, 093502 (2023)

IP Data

IP No.　 ： JP2023-088181　
Inventor ： SHIMIZU Makoto, LIU Zen, HIROO Yugami
keyword ： tunneldiode, improverectificationperformance, IR, THz, opticalrectenna