construction of photo-thermal energy conversion system via plasmonics and fractal anti-reflection surfaces

2018 Fiscal Year Final Research Report

• Project/Area Number: 16K04884
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Nanomaterials chemistry
• Research Institution: Yokohama National University
• Principal Investigator: NISHIJIMA Yoshiaki 横浜国立大学, 大学院工学研究院, 准教授 (60581452)
• Research Collaborator: JUODKAZIS Saulius
• Project Period (FY): 2016-04-01 – 2019-03-31
• Keywords: メタ表面 / ブラックシリコン / 光熱変換・発電システム / 光吸収効率

Outline of Final Research Achievements

We have achieved to fabricate the plasmonic meta surface, which is absorption type of plasmonic materials and black silicon nano-micro structures for low reflectance and high absorption materials. Especially, we have achieved to construction of materials over 90% absorption in near infrared to mid infrared wavelength, which is used for un-used solar light energy from sun light.
From experimental and simulation analysis, we confirmed to realize voltaic system with photo-thermal energy conversions.

Free Research Field

ナノ材料

Academic Significance and Societal Importance of the Research Achievements

従来の太陽電池で使用できない中赤外や遠赤外の波長から、熱を介して電気エネルギーを取り出すことができるシステムを実現する材料を開発することに成功した。これは、再生可能エネルギーの利用効率を極限的に高めることに役立つ社会的意義を有する。