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Absolute photoluminescence spectroscopy for diagnosis and optimization of next-generation quantum nano solar cells

Research Project

Project/Area Number 20K05254
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 28020:Nanostructural physics-related
Research InstitutionKanagawa Institute of Industrial Sclence and Technology (2021-2022)
The University of Tokyo (2020)

Principal Investigator

Tamaki Ryo  地方独立行政法人神奈川県立産業技術総合研究所, 戦略的研究シーズ育成プロジェクト, 研究員(任期有) (10767742)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords中間バンド型太陽電池 / 量子ドット太陽電池 / 絶対値発光分光 / 光閉じ込め構造 / 超高速分光 / テラヘルツ分光 / シングルショット分光 / 一般化プランク則 / ホットキャリア効果 / 出力電圧維持 / 時間分解分光 / 光マネジメント
Outline of Research at the Start

従来の単接合太陽電池の理論限界を超える、次世代高効率太陽電池の候補である量子ドット中間バンド型太陽電池を対象とし、これまで未達の「出力電圧の維持」を達成するための最適設計の解明を目指す。具体的には、量子ナノ構造のバンドエンジニアリングと光マネジメント技術をデバイス実装し、太陽電池内部の擬フェルミレベル分裂(出力電圧に相当)を直接観測する絶対値発光分光を量子ナノ構造に適用する手法を確立して、出力電圧の向上効果を確認する。最終的には最適化設計による「電圧維持」の達成とともに、次世代高効率デバイスの理論予測を実現するための方法論へとつなげる。

Outline of Final Research Achievements

In quantum nanostructured solar cells, bias voltage, temperature, and light concentration dependences of absolute photoluminescence (PL) spectra were analyzed quantitatively. In addition to the increase in quasi-Fermi level splitting due to the light concentration, we found that voltage enhancement could be obtained by utilizing the hot carrier effect. As for the light confinement structure, Fabry-Perot cavity could be realized more than 10-fold enhancement of the optical field by controlling the position of the quantum nanostructure in the stacking direction.

Academic Significance and Societal Importance of the Research Achievements

次世代高効率太陽電池の候補である量子ドット中間バンド型太陽電池において、絶対値発光分光による擬フェルミレベル分裂(内部電圧に相当)の定量解析と、光閉じ込め構造の設計及びデバイス実装に取り組んだ。高効率化実現に向けた電圧維持の要件達成と中間バンド型動作の原理実証に向けたデバイス設計指針を見出し、革新的原理に基づく次世代高効率太陽電池の特性向上に資する知見を得た。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (13 results)

All 2023 2022 2021 2020

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (10 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results)

  • [Journal Article] Electrical passivation of III-V multijunction solar cells with luminescent coupling effect2023

    • Author(s)
      Yu Jeco-Espaldon Bernice Mae, Tamaki Ryo, Giteau Maxime, Xu Hao, Ahsan Nazmul, King Richard R., Okada Yoshitaka
    • Journal Title

      Solar Energy Materials and Solar Cells

      Volume: 249 Pages: 112045-112045

    • DOI

      10.1016/j.solmat.2022.112045

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Pulse-to-pulse detection of terahertz radiation emitted from the femtosecond laser ablation process2022

    • Author(s)
      Tamaki Ryo, Kasai Tatsuki, Asai Gaku, Hata Daiki, Kubo Hajime, Takigawa Yuichi, Takeda Jun, Katayama Ikufumi
    • Journal Title

      Optics Express

      Volume: 30 Issue: 13 Pages: 23622-23622

    • DOI

      10.1364/oe.459588

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Resonant absorption for multilayer quantum well and quantum dot solar cells2022

    • Author(s)
      Giteau Maxime、Oteki Yusuke、Kitahara Kento、Miyashita Naoya、Tamaki Ryo、Okada Yoshitaka
    • Journal Title

      Journal of Photonics for Energy

      Volume: 12 Issue: 02 Pages: 022203-022203

    • DOI

      10.1117/1.jpe.12.022203

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Singleshot and high-sensitivity detection of terahertz waveforms using phase-offset electro-optic sampling and an echelon mirror2023

    • Author(s)
      Ikufumi Katayama, Ryo Tamaki
    • Organizer
      SPIE Photonics West
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 分散補償チャープパルス和周波分光法による高感度シングルショットテラヘルツ波形計測2023

    • Author(s)
      玉置 亮,鈴木 雅史,武田 淳,片山 郁文
    • Organizer
      第70回応用物理学会春季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Terahertz Time-Domain Spectroscopy using Chirped-Pulse Up-Conversion with Dispersion Compensation2022

    • Author(s)
      Ryo Tamaki, Masashi Suzuki, Jun Takeda, Ikufumi Katayama
    • Organizer
      15th Pacific Rim Conference on Lasers and Electro-Optics
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Chirped-Pulse Up-Conversion Spectroscopy Applicable to Terahertz Waveform Detection in Time-Domain2022

    • Author(s)
      Ryo Tamaki, Masashi Suzuki, Jun Takeda, Ikufumi Katayama
    • Organizer
      International Conference on Ultrafast Phenomena
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Chirped-pulse up-conversion spectroscopy with dispersion compensation using an Yb-doped fiber laser2022

    • Author(s)
      Ryo Tamaki, Masashi Suzuki, Jun Takeda, Ikufumi Katayama
    • Organizer
      The Third International Symposium on Frontiers in THz Technology
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 分散補償チャープパルス分光法によるテラヘルツ時間波形計測2022

    • Author(s)
      玉置亮,鈴木雅史,武田淳,片山郁文
    • Organizer
      日本物理学会2022年秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 分散補償チャープパルス分光法によるシングルショットテラヘルツ時間領域分光2022

    • Author(s)
      玉置亮,鈴木雅史,武田淳,片山郁文
    • Organizer
      第41回電子材料シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] 分散補償チャープパルス分光法によるシングルショット超高速応答計測2022

    • Author(s)
      玉置 亮、鈴木 雅史、武田 淳、片山 郁文
    • Organizer
      第69回応用物理学会春季学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] Fabry-Perot共振を用いた量子ドット太陽電池の光吸収率増強2021

    • Author(s)
      樗木悠亮、Maxime Giteau、福島啓、北原健渡、宮下直也、玉置亮、岡田至崇
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] InAs/GaAs量子ドット太陽電池における絶対値発光分光:電圧バイアス依存性2020

    • Author(s)
      玉置亮、庄司靖、Jean-Francois Guillemoles、岡田至崇
    • Organizer
      第39回電子材料シンポジウム
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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