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Control of intraband optical transition sensitized in infrared wavelength region and application for ultra-high sensitive infrared sensor

Research Project

Project/Area Number 20K21004
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 21:Electrical and electronic engineering and related fields
Research InstitutionKobe University

Principal Investigator

Kita Takashi  神戸大学, 工学研究科, 教授 (10221186)

Co-Investigator(Kenkyū-buntansha) 原田 幸弘  神戸大学, 工学研究科, 助教 (10554355)
朝日 重雄  神戸大学, 工学研究科, 助教 (60782729)
Project Period (FY) 2020-07-30 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2021: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2020: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Keywords赤外線センサー / バンド内光学遷移 / 量子ナノ構造 / 量子ドット / バンド内遷移
Outline of Research at the Start

量子ドットとヘテロ界面を融合した量子ナノ構造におけるバンド内光学遷移エンジニアリングは物理的に新しく、量子ドット形状による光学遷移選択の制御が可能になる。また、電子を満たした量子ドットに表面プラズモンが局在して励起されると、半導体ナノ粒子では一般に近赤外および中赤外領域で共鳴的に大きな分極が誘起されるので、赤外光に高感度に応答する。大きなバンドギャップの半導体を利用できるので熱励起キャリアの生成を抑制しつつ赤外光吸収を同時に実現できるため、室温で動作する超高感度な量子型赤外光センシングを実現できる。

Outline of Final Research Achievements

We have developed an infrared sensing device with a quantum nano-structure of a heterointerface containing quantum dots. This device exhibits effective intraband photo-absorption at the hertointerface which is enhanced by quantum dots. The central part of our device is an Al0.3Ga0.7As/GaAs heterostructure containing InAs/GaAs quantum dots. In this device, the electrons that have been accumulated at the heterointerface are transferred to the conduction band of the Al0.3Ga0.7As barrier by absorbing infrared photons and the following drift due to the electric field at the interface. These intraband transitions at the heterointerface are sensitized by the quantum dots. According to theoretical calculations, strong localized plasmon modes enhances the electro-magnetic wave of the infrared signal light.

Academic Significance and Societal Importance of the Research Achievements

本研究はバンド内光学遷移のエンジニアリングを通じた新しい原理で動作する量子型高効率赤外線センサーである。量子ドットを内包するシンプルなヘテロ構造でありながら室温において市販されているフォトセンサーの光検出能を凌駕することが明らかになり、新しい超高感度量子型赤外線センサーに波及する。また、バンド内光学遷移のエンジニアリングは常温動作する高感度な量子型赤外線センシングを含む未踏の赤外波長領域の光センシングデバイス実現につながる根本であり、近赤外域からテラヘルツ波長帯にまで及ぶ光センシングへの波及効果も予想され、社会的意義も大きい。

Report

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

    (30 results)

All 2022 2021 2020 Other

All Int'l Joint Research (2 results) Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (21 results) (of which Int'l Joint Research: 7 results,  Invited: 4 results) Remarks (2 results)

  • [Int'l Joint Research] ニューサウスウェールズ大学(オーストラリア)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] ミラノビコッカ大学(イタリア)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Voltage Boost Effects in Two-Step Photon Upconversion Solar Cells with a Modulation-Doped Structure2021

    • Author(s)
      K. Watanabe, S. Asahi, Y. Zhu, and T. Kita
    • Journal Title

      Journal of Applied Physics

      Volume: 130 Issue: 8 Pages: 085701-085701

    • DOI

      10.1063/5.0058518

    • NAID

      120007143560

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Two-photon photocurrent spectra of InAs quantum dot-in-well intermediated-band solar cells at room temperature2021

    • Author(s)
      Y. Zhu, S. Asahi, N. Miyashita, Y. Okada, and T. Kita
    • Journal Title

      Journal of Applied Physics

      Volume: 130 Issue: 12 Pages: 124505-124505

    • DOI

      10.1063/5.0060569

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Two-Step Excitation Induced Photovoltaic Properties in an InAs Quantum Dot-In-Well Intermediate-Band Solar Cell2021

    • Author(s)
      Y. Zhu, S. Asahi, K. Watanabe, N. Miyashita, Y. Okada, and T. Kita
    • Journal Title

      J. Appl. Phys.

      Volume: 129 Issue: 7 Pages: 074503-074503

    • DOI

      10.1063/5.0036313

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Infrared Photodetector Sensitized by InAs Quantum Dots Embedded Near an Al0.3Ga0.7As/GaAs Heterointerface2020

    • Author(s)
      T. Murata, S. Asahi, Stefano Sanguinetti, and T. Kita
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1

    • DOI

      10.1038/s41598-020-68461-w

    • NAID

      120006876707

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Reciprocal Relation Between Intraband Carrier Generation and interband Recombination at the Heterointerface of Two-Step Photon Up-Conversion Solar Cells2020

    • Author(s)
      N. Kinugawa, S. Asahi, and T. Kita
    • Journal Title

      Physical Review Applied

      Volume: 14 Issue: 1

    • DOI

      10.1103/physrevapplied.14.014010

    • NAID

      120006888548

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] Control of Quantum-Dot Growth for Novel Solar Cells2022

    • Author(s)
      T. Kita
    • Organizer
      ISPlasma2022 / IC-PLANTS2022
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 2段階フォトンアップコンバージョン太陽電池における ヘテロ界面のバンド内遷移の光吸収率2022

    • Author(s)
      朝日 重雄、H.Mahamu、喜多 隆
    • Organizer
      第69回応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 正孔フォトンアップコンバージョン太陽電池の赤外光照射による光電流制御2022

    • Author(s)
      豊友太、朝日重雄、H. Mahamu、M. P. Nielsen、N. J. Ekins-Daukes、喜多隆
    • Organizer
      第69回応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Lateral Photoconductivity of Multiple-Stacked InAs/GaAs Quantum Dot Structure for Photoconductive Antenna Device2021

    • Author(s)
      T. Kaizu, I. Kohama, Y. Minami, T. Kitada, Y. Harada, O. Kojima, T. Kita, and O. Wada
    • Organizer
      Compund Semiconductor Week(CSW)2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Collection of Photocarriers Varied by Effective Electron Intraband Excitation in an InAs Quantum Dot-in-Well Intermediate Band Solar Cell2021

    • Author(s)
      Y. Zhu, S. Asahi, and T. Kita
    • Organizer
      48th IEEE Photovoltaic Specialists Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Two-step up-conversion solar cells: recent progress and future direction2021

    • Author(s)
      S. Asahi, and T. Kita
    • Organizer
      8th International Workshop Epitaxial Growth and Fundamental Properties of Semiconductor Nanostructures (SemiconNano2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Control of Carrier Dynamics in Quantum Dots for Intermediate-Band Solar Cells2021

    • Author(s)
      T. Kita
    • Organizer
      2021 International Conference on Solid State Devices
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 正孔のアップコンバージョンを利用した2段階フォトンアップコンバージョン太陽電池のバンド内遷移過程2021

    • Author(s)
      朝日重雄、M. P .Nielsen、池田一真、N. J. Ekins-Daukes、喜多隆
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] On the Simulation of Two-Step Photocurrent Generation in an InAs Quantum Dot -in-Well Intermediate Band Solar Cell2021

    • Author(s)
      Y. Zhu, S. Asahi, and T. Kita
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 太陽電池のエネルギー変換効率と高効率化への道2021

    • Author(s)
      喜多隆
    • Organizer
      令和3年度 応用物理学会 多元系化合物・太陽電池研究会 年末講演会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Up-Converted Photocurrent Enhancement in Modulation-Doped Two-Step Photon Up-Conversion Solar Cells2020

    • Author(s)
      K. Watanabe, S. Asahi, Y. Zhu, and T. Kita
    • Organizer
      47th IEEE Photovoltaic Specialists Conference
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Intensive-Light-Induced Backtracking Voltage Phenomenon: An Insight into Intermediate-Band Solar Cell Output Performance2020

    • Author(s)
      Y. Zhu, S. Asahi, and T. Kita
    • Organizer
      47th IEEE Photovoltaic Specialists Conference
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Efficiency Compensation from Intraband Transitions of Opposite Carrier in a Quantum Dot-in-Well Intermediate Band Solar Cell2020

    • Author(s)
      Y. Zhu, S. Asahi, and T. Kita
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 変調ドープした二段階フォトンアップコンバージョン太陽電池における電圧上昇効果2020

    • Author(s)
      渡辺航平、朝日重雄、喜多隆
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] Development of Mid-Infrared Photodetector Can Operate Under Room Temperature with High Sensitivity Using Intraband Transition2020

    • Author(s)
      K. Nakabayashi, S. Asahi, and T. Kita
    • Organizer
      第39回電子材料シンポジウム
    • Related Report
      2020 Research-status Report
  • [Presentation] Performance Analysis of an InAs/GaAs/Al0.3Ga0.7As Quantum Dot-in-Well Intermediate Band Solar Cell Under Two-Step Photoexcitations2020

    • Author(s)
      Y. Zhu, S. Asahi, K. Watanabe and T. Kita
    • Organizer
      第39回電子材料シンポジウム
    • Related Report
      2020 Research-status Report
  • [Presentation] Dramatic Enhancement of Current and Voltage in Modulation-Doped Two-Step Photon Up-Conversion Solar Cells2020

    • Author(s)
      K. Watanabe, S. Asahi, Y. Zhu, and T. Kita
    • Organizer
      第39回電子材料シンポジウム
    • Related Report
      2020 Research-status Report
  • [Presentation] 正孔のアップコンバージョンを利用した2段階フォトンアップコンバージョン太陽電池の追加赤外光による光電流減少メカニズム2020

    • Author(s)
      朝日重雄、M. Nielsen, N.J. Ekins-Daukes, 喜多隆
    • Organizer
      第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] Performance Degradation of Quantum Dot-in-Well Intermediate Band Solar Cell Under Intense Bi-Color Barrier and Intraband Photoexcitations2020

    • Author(s)
      Y.Zhu, S. Asahi, and T. Kita
    • Organizer
      第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 変調ドープした二段階フォトンアップコンバージョン太陽電池における光励起効率の向上2020

    • Author(s)
      渡辺航平、朝日重雄、喜多隆
    • Organizer
      第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 変調ドープによるフォトンアップコンバージョン太陽電池の特性制御2020

    • Author(s)
      渡辺航平、朝日重雄、Yaxing Zhu、喜多隆
    • Organizer
      日本材料学会半導体エレクトロニクス部門委員会
    • Related Report
      2020 Research-status Report
  • [Remarks] 神戸大学フォトニック材料学研究室

    • URL

      https://www.research.kobe-u.ac.jp/eng-photonics/

    • Related Report
      2021 Annual Research Report
  • [Remarks] 神戸大学フォトニック材料学研究室

    • URL

      http://www.research.kobe-u.ac.jp/eng-photonics/

    • Related Report
      2020 Research-status Report

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Published: 2020-08-03   Modified: 2023-01-30  

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