| 研究課題/領域番号 |
22J11167
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| 配分区分 | 補助金 |
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| 研究機関 | 東北大学 |
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研究代表者 |
LIU ZHEN 東北大学, 工学研究科, 特別研究員(DC2)
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| 研究期間 (年度) |
2022-04-22 – 2024-03-31
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| キーワード | Energy harvesting / High rectification / Optical rectenna / Tunnel diode / MIM diode / Nanoparticles / Electric field |
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| 研究実績の概要 |
During this year, the progress mainly including 3 parts:
1. Clarify the electron tunneling behavior in MIM diodes with electric field concentration effect. Establish a comprehensive model for electron tunneling that considers the configuration and effect of the MIM diode.
2. Design and fabricate MIM diodes with nanoparticles (NPs) to achieve electric field concentration effect. Optimize the configuration of the MIM diode using finite element method and fabricate a platinum NPs array using atomic layer deposition.
3. Characterize the MIM diode with NPs, and demonstrate a significant improvement of ~300 times in rectification performance comparing with the MIM diode without NPs.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
2: おおむね順調に進展している
理由
The rectification performance model of metal-insulator-metal (MIM) diodes with comprehensive configuration under optical illumination has been established, and a high-yield fabrication method for MIM diodes has also been developed. Optical rectennas for harvesting mid-infrared radiation have been designed and are currently in the process of fabrication. In the next steps, reliable fabrication processes will be further developed, and the rectification performance of these optical rectennas for mid-infrared radiation will be characterized. In consideration of the above situation, I think this research is progressing as expected.
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| 今後の研究の推進方策 |
In the future, the MIM diodes with high rectification performance that have been developed will be integrated into the ongoing development of optical rectennas for harvesting mid-infrared radiation energy. Furthermore, novel configuration methods will be explored to significantly enhance the input power density thus improve the rectification efficiency of the radiation.
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