Development of infrared detectors based on plasmonics and thermoelectrics

2021 Fiscal Year Final Research Report

• Project/Area Number: 20K21138
• Research Category: Grant-in-Aid for Challenging Research (Exploratory)
• Allocation Type: Multi-year Fund
• Review Section: Medium-sized Section 29:Applied condensed matter physics and related fields
• Research Institution: National Institute for Materials Science
• Principal Investigator: Harada Takayuki 国立研究開発法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, 独立研究者 (90609942)
• Project Period (FY): 2020-07-30 – 2022-03-31
• Keywords: 酸化物 / デバイス / 薄膜 / 検出器

Outline of Final Research Achievements

High-resolution infrared detectors have wide range of applications such as medical apparatus, night-vision sensors in automobiles and aircraft, non-destructive inspection of buildings and structures, ocean and geological exploration, evaluation of electronic components, and infrared astronomy. In this project, we aimed to develop an infrared detector based on a new principle by combining metal nanostructures that can efficiently collect infrared energy and thermoelectric materials that converts temperature gradient into electrical signals.

Free Research Field

薄膜ヘテロ構造

Academic Significance and Societal Importance of the Research Achievements

本研究では、光エネルギーを効率的に吸収する金属ナノ構造と熱電材料を組み合わせて新しい光検出器を開発することを目標とした。研究期間内に検出器の開発には至らなかったが、高画素数の検出器を開発するために必要な、大面積で赤外線の透過性が高い下部電極の作製に成功した。この下部電極の上に熱電材料と金属ナノ構造を作製し、新しい光検出器の開発につなげたい。