2022年第83回応用物理学会秋季学術講演会

講演情報

シンポジウム(口頭講演)

シンポジウム » 【現地会場のみでの開催】ヘテロ材料が拓く新機能

[20p-A307-1~9] 【現地会場のみでの開催】ヘテロ材料が拓く新機能

2022年9月20日(火) 13:00 〜 16:45 A307 (A307)

石塚 尚吾(産総研)、今泉 充(宇宙機構)

14:30 〜 14:45

[20p-A307-4] Design of Metal-Insulator-Metal Diodes for Optical Rectennas Operating at Various Wavelengths

〇(DC)Zhen Liu1、Makoto Shimizu1、Kazuma Kakuta1、Hiroo Yugami1 (1.Tohoku Univ.)

キーワード:MIM diode, Optical rectenna

Rectennas (short for “rectifying antennas”) devices consist of an antenna-coupled rectifying element to absorb the incident radiation energy and convert it into direct current (DC). The optical rectennas provide an exciting energy harvesting technique to directly rectify solar and thermal electromagnetic radiation. A crucial component of optical rectennas is the metal-insulator-metal (MIM) diode to rectify the ultrahigh frequency close to petahertz.
The main focus of this study is to correlate the potential barrier properties of MIM diodes with suitable operating wavelengths. A design framework of MIM diodes is expected to discuss with various operating wavelengths. Moreover, shaping the barrier potential is an attractive approach to breaking the trade-off relationship. Some methods to control the barrier potential for improving the performance of the MIM diode will introduce in the presentation, such as using the double insulators with different bandgaps, and applying the electrical field concentration effect to generate greater responsivity and asymmetry.