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欠陥フリー低鉛ペロブスカイトナノ結晶の基礎研究と光電デバイスへの応用

Research Project

Project/Area Number 18F18370
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section外国
Review Section Basic Section 28030:Nanomaterials-related
Research InstitutionThe University of Electro-Communications

Principal Investigator

沈 青  電気通信大学, 大学院情報理工学研究科, 教授 (50282926)

Co-Investigator(Kenkyū-buntansha) LIU FENG  電気通信大学, 情報理工学(系)研究科, 外国人特別研究員
Project Period (FY) 2018-11-09 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 2020: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2019: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2018: ¥600,000 (Direct Cost: ¥600,000)
Keywords量子ドット / ペロブスカイト / 低欠陥 / 太陽電池 / quantum dots / perovskite / less defect / solar cell / perovskite nanocrystals / perovskite solar cell / near-unity PL QY
Outline of Annual Research Achievements

In the research, we have proposed improved synthetic methods which can lead to significantly improved crystal quality and stability for the resulting perovskite Pb-based QD and Sn-Pb alloyed QD solutions. We have demonstrated that a high photoluminescence quantum yield of up to 100% can be obtained in the Pb-based perovskite QDs, signifying the achievement of almost complete elimination of the trapping defects. Ultrafast kinetic analysis evidences the negligible electron or hole trapping pathways in our QDs. Solar cells based on the high-quality QDs exhibit power conversion efficiency of over 12%. We expect the successful synthesis of the “ideal” perovskite QDs will exert profound influence on their applications to both QD-based light-harvesting and -emitting devices in the near future.

Research Progress Status

令和2年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和2年度が最終年度であるため、記入しない。

Report

(3 results)
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (17 results)

All 2021 2020 2019 Other

All Int'l Joint Research (3 results) Journal Article (6 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 6 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 7 results,  Invited: 6 results) Patent(Industrial Property Rights) (1 results)

  • [Int'l Joint Research] National Renewable Energy Laboratory(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] North China Electric Power University(中国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Center for Computational Energy Research/Department of Applied Physics/Eindhoven University of Technology(オランダ)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] The role of sodium in stabilizing tin-lead (Sn-Pb) alloyed perovskite quantum dots2021

    • Author(s)
      Jiang Junke、Liu Feng、Shen Qing、Tao Shuxia
    • Journal Title

      Journal of Materials Chemistry A

      Volume: 2 Issue: 20 Pages: 1000-1006

    • DOI

      10.1039/d1ta00955a

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Ultra-Halide-Rich Synthesis of Stable Pure Tin-Based Halide Perovskite Quantum Dots: Implications for Photovoltaics2021

    • Author(s)
      Liu Feng、Jiang Junke、Toyoda Taro、Kamarudin Muhammad Akmal、Hayase Shuzi、Wang Ruixiang、Tao Shuxia、Shen Qing
    • Journal Title

      ACS Applied Nano Materials

      Volume: 4 Issue: 4 Pages: 3958-3968

    • DOI

      10.1021/acsanm.1c00324

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Trioctylphosphine Oxide Acts as Alkahest for SnX2/PbX2: A General Synthetic Route to Perovskite ASnxPb1-xX3 (A = Cs, FA, MA; X = Cl, Br, I) Quantum Dots2020

    • Author(s)
      Liu Feng、Zhang Yaohong、Ding Chao、Kawabata Kentaro、Yoshihara Yasuha、Toyoda Taro、Hayase Shuzi、Minemoto Takashi、Wang Ruixiang、Shen Qing
    • Journal Title

      Chemistry of Materials

      Volume: 32 Issue: 3 Pages: 1089-1100

    • DOI

      10.1021/acs.chemmater.9b03918

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Near‐Infrared Emission from Tin-Lead (Sn-Pb) Alloyed Perovskite Quantum Dots by Sodium Doping2020

    • Author(s)
      Liu Feng、Jiang Junke、Zhang Yaohong、Ding Chao、Toyoda Taro、Hayase Shuzi、Wang Ruixiang、Tao Shuxia、Shen Qing
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 59 Issue: 22 Pages: 8421-8424

    • DOI

      10.1002/anie.201916020

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Atomistic and Electronic Origin of Phase Instability of Metal Halide Perovskites2020

    • Author(s)
      Jiang Junke、Liu Feng、Tranca Ionut、Shen Qing、Tao Shuxia
    • Journal Title

      ACS Applied Energy Materials

      Volume: 3 Issue: 12 Pages: 11548-11558

    • DOI

      10.1021/acsaem.0c00791

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] GeI2 Additive for High Optoelectronic Quality CsPbI3 Quantum Dots and Their Application in Photovoltaic Devices2019

    • Author(s)
      Liu Feng、Ding Chao、Zhang Yaohong、Kamisaka Taichi、Zhao Qian、Luther Joseph M.、Toyoda Taro、Hayase Shuzi、Minemoto Takashi、Yoshino Kenji、Zhang Bing、Dai Songyuan、Jiang Junke、Tao Shuxia、Shen Qing
    • Journal Title

      Chemistry of Materials

      Volume: 31 Issue: 3 Pages: 798-807

    • DOI

      10.1021/acs.chemmater.8b03871

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Phase stable and less-defect perovskite quantum dots: optical property, photoexcited carrier dynamics and application to solar cells2020

    • Author(s)
      Qing Shen
    • Organizer
      Webinar on Materials Science, Engineering and Technology (www.vebleo.com/mset)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Optical Property, Photoexcited Carrier Dynamics, and Photovoltaic Application2020

    • Author(s)
      Feng Liu, Chao Ding, Yaohong Zhang, Qing Shen: Phase Stable and Less-Defect Perovskite Quantum Dots
    • Organizer
      the 7th Conference on Science and Technology of Emerging Solar Energy Materials
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Phase Stable and Less-Defect Perovskite Quantum Dots, Optical Property, Photoexcited Carrier Dynamics and Application to Solar Cells2020

    • Author(s)
      Qing Shen
    • Organizer
      2020 MRS Fall Meeting
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Phase Stable and Less-Defect Perovskite Quantum Dots: Optical Property, Photoexcited Carrier Dynamics, and Application to Solar Cells2020

    • Author(s)
      Qing Shen
    • Organizer
      the 30th International Photovoltaic Science and Engineering Conference (PVSEC-30) & Global Photovoltaic Conference (GPVC 2020) (PVSEC-30 & GPVC 2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Phase Stable and Less-Defect Perovskite Quantum Dots: Optical Property, Photoexcited Carrier Dynamics, and Application to Solar Cells2020

    • Author(s)
      Qing Shen, Feng Liu, Chao, Ding and Yaohong Zhang
    • Organizer
      PRiME 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Enhanced Near-Infrared Emission from Cs(Pb/Sn)I3 Quantum Dots by Sodium Doping2019

    • Author(s)
      Feng Liu and Qing Shen
    • Organizer
      Materials Research Meeting
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Phase-Stable and High Optoelectronic Quality All-Inorganic Perovskite Quantum Dots and Their Application in Optoelectronic Devices2019

    • Author(s)
      Liu Feng、Ding Chao、Zhang Yaohong、Toyoda Taro、Hayase Shuzi、Shen Qing
    • Organizer
      2019 MRS Spring Meeting & Exhibit
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Patent(Industrial Property Rights)] 量子ドット、これを用いた光デバイス、及び量子ドットの作製方法2019

    • Inventor(s)
      劉鋒、沈青、張耀紅、丁超、早瀬修二
    • Industrial Property Rights Holder
      劉鋒、沈青、張耀紅、丁超、早瀬修二
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2019-209567
    • Filing Date
      2019
    • Related Report
      2019 Annual Research Report

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Published: 2018-11-12   Modified: 2024-03-26  

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