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Fabrication of highly efficient photofunctional devices with heterojunctioned quantum dots

Research Project

Project/Area Number 18K19128
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 36:Inorganic materials chemistry, energy-related chemistry, and related fields
Research InstitutionNagoya University

Principal Investigator

Torimoto Tsukasa  名古屋大学, 工学研究科, 教授 (60271029)

Project Period (FY) 2018-06-29 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2019: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2018: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords量子ドット / 発光材料 / 光電気化学 / 光触媒 / 多元半導体 / I-III-VI族 / 量子ドット光触媒 / 粒子組成制御 / I-III-VI族半導体 / ナノ粒子 / エネルギー変換デバイス / 組成制御 / ヘテロ接合 / 発光
Outline of Final Research Achievements

We developed a solution-phase method for synthesizing high-quality multinary quantum dots (QDs) composed of less toxic elements, in which harmful defect sites for photo-generated charge carriers were mostly eliminated. Furthermore, the chemical compositions of QDs were precisely controlled to tune their electronic energy structures. The obtained QDs exhibited photoluminescence properties, photoelectrochemical properties, and photocatalytic activities, being dependent on the sizes and shapes of QDs and their chemical compositions. These results indicate that less-toxic multinary quantum dots obtained in this study are useful as photo-functional materials in practical applications.

Academic Significance and Societal Importance of the Research Achievements

低毒性なI-III-VI族元素をベースとする多元半導体量子ドットを液相化学合成法により作製した。さらに異なる半導体と接合させる、あるいは多元量子ドットの粒子組成を空間的に変調させることによって、粒子内部にヘテロ接合を形成させ、多元量子ドットの光化学特性を大きく向上することができた。本研究で開発した新規な低毒性多元量子ドットは、実用化が可能な材料であり、様々な分野での利用が期待される。

Report

(3 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • Research Products

    (17 results)

All 2020 2019 2018

All Journal Article (10 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 9 results,  Open Access: 4 results) Presentation (6 results) (of which Int'l Joint Research: 4 results,  Invited: 6 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Temperature dependences of photoluminescence intensities observed from AgInGaS and AgInGaS/GaSx core-shell nanoparticles2020

    • Author(s)
      Masayoshi Ichimiya, Tatsuya Kameyama, Tsukasa Torimoto, Taro Uematsu, Susumu Kuwabata, Masaaki Ashida
    • Journal Title

      Journal of Nanophotonics

      Volume: 14 Issue: 01 Pages: 016010-016010

    • DOI

      10.1117/1.jnp.14.016010

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Tailored Photoluminescence Properties of Ag(In,Ga)Se2 Quantum Dots for Near-Infrared In Vivo Imaging2020

    • Author(s)
      Tatsuya Kameyama, Hiroki Yamauchi, Takahisa Yamamoto, Toshiki Mizumaki, Hiroshi Yukawa, Masahiro Yamamoto, Shigeru Ikeda, Taro Uematsu, Yoshinobu Baba, Susumu Kuwabata, and Tsukasa Torimoto
    • Journal Title

      ACS Appl. Nano Mater.

      Volume: 3 Pages: 3275-3287

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Enhanced Photoelectrochemical Properties of Zn-Ag-In-Te Nanocrystals with High Energy Photon Excitation2019

    • Author(s)
      Kameyama Tatsuya、Sugiura Kouta、Kuwabata Susumu、Okuhata Tomoki、Tamai Naoto、Torimoto Tsukasa
    • Journal Title

      ChemNanoMat

      Volume: 5 Issue: 8 Pages: 1028-1035

    • DOI

      10.1002/cnma.201900241

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Direct surface modification of semiconductor quantum dots with metal-organic frameworks2019

    • Author(s)
      Kumagai Kohei、Uematsu Taro、Torimoto Tsukasa、Kuwabata Susumu
    • Journal Title

      CrystEngComm

      Volume: 21 Issue: 37 Pages: 5568-5577

    • DOI

      10.1039/c9ce00769e

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Core Nanoparticle Engineering for Narrower and More Intense Band-Edge Emission from AgInS2/GaSx Core/Shell Quantum Dots2019

    • Author(s)
      Hoisang Watcharaporn、Uematsu Taro、Yamamoto Takahisa、Torimoto Tsukasa、Kuwabata Susumu
    • Journal Title

      Nanomaterials

      Volume: 9 Issue: 12 Pages: 1763-1763

    • DOI

      10.3390/nano9121763

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 高性能な“低毒性”量子ドットを開発!2019

    • Author(s)
      鳥本司,亀山達也,上松太郎,桑畑進
    • Journal Title

      化学

      Volume: 74 Pages: 44-48

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Wavelength-Tunable Band-Edge Photoluminescence of Nonstoichiometric Ag-In-S Nanoparticles via Ga3+ Doping2018

    • Author(s)
      Tatsuya Kameyama, Marino Kishi, Chie Miyamae, Dharmendar Kumar Sharma, Shuzo Hirata, Takahisa Yamamoto, Taro Uematsu, Martin Vacha, Susumu Kuwabata, and Tsukasa Torimoto
    • Journal Title

      ACS Applied Mater. Interfaces

      Volume: 10 Issue: 49 Pages: 42844-42855

    • DOI

      10.1021/acsami.8b15222

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Narrow band-edge photoluminescence from AgInS2 semiconductor nanoparticles by the formation of amorphous III-VI semiconductor shells2018

    • Author(s)
      Taro Uematsu, Kazutaka Wajima, Dharmendar Kumar Sharma, Shuzo Hirata, Takahisa Yamamoto, Tatsuya Kameyama, Martin Vacha, Tsukasa Torimoto, and Susumu Kuwabata
    • Journal Title

      NPG Asia Mater.

      Volume: 10 Issue: 8 Pages: 713-726

    • DOI

      10.1038/s41427-018-0067-9

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Photoluminescence characterization of ZnS-AgInS2 (ZAIS) nanoparticles adsorbed on plasmonic chip studied with fluorescence microscopy2018

    • Author(s)
      Wataru Minoshima, Ryuya Ito, Takayuki Takiyama, Tatsuya Kameyama, Tsukasa Torimoto, and Keiko Tawa
    • Journal Title

      J. Photochem. Photobiol. A: Chem.

      Volume: 367 Pages: 347-354

    • DOI

      10.1016/j.jphotochem.2018.08.032

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Two-photon absorption spectrum of solid solution nanocrystals of ZnS-AgInS22018

    • Author(s)
      Yasutaka Suzuki, Shozo Onishi, Kazuya Matsumoto, Takayuki Takiyama, Tatsuya Kameyama, Tsukasa Torimoto, and Jun Kawamata
    • Journal Title

      Chem. Lett.

      Volume: 47 Pages: 1475-1477

    • DOI

      10.1246/cl.180718

    • NAID

      130007534800

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Ionic Liquid/Metal Sputtering Technique for Preparation of Metal and Alloy Nanoparticles2020

    • Author(s)
      Tsukasa Torimoto, Tatsuya Kameyama, and Susumu Kuwabata
    • Organizer
      ISPlasma2020/IC-PLANTS2020
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Solution-phase Syntheses of Multinary Semiconductor Nanocrystals Composed of Less-toxic Elements and Their Photochemical Properties2019

    • Author(s)
      Tsukasa Torimoto, Tatsuya Kameyama, Susumu Kuwabata
    • Organizer
      The 13th Pacific Rim Conference of Ceramic Societies (PACRIM13),
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Controllable Photoluminescence Property of Ag(In,Ga)S2 Quantum Dots2019

    • Author(s)
      Tsukasa Torimoto, Tatsuya Kameyama, Marino Kishi, Chie Miyamae, Taro Uematsu, Susumu Kuwabata
    • Organizer
      The 10th Integrated Molecular/Materials Science & Engineering (IMSE-10)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Size- and composition-dependent localized surface plasmon resonance of colloidal Au-Ag nanorings2019

    • Author(s)
      Tsukasa Torimoto, Kosuke Sasamoto, Tatsuya Kameyama
    • Organizer
      The International Symposium Plasmonics and Nanophotonics (iSPN2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Preparation of Dumbbell-Shaped Nanocrystals Composed of ZnS-AgInS2 Solid Solution and Their Photocatalytic H2 Evolution Activity2018

    • Author(s)
      T. Torimoto, S. Koyama, T. Kameyama
    • Organizer
      233rd ECS Meeting
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Photocatalytic H2 Evolution Activity of Dumbbell-shaped Nanocrystals Composed of ZnS-AgInS2 Solid Solution2018

    • Author(s)
      T. Kameyama, S. Koyama, T. Yamamoto, S. Kuwabata, T. Torimoto
    • Organizer
      Materials Challenges in Alternative and Renewable Energy (MCARE 2018)
    • Related Report
      2018 Research-status Report
    • Invited
  • [Patent(Industrial Property Rights)] 分離装置および固定相部材およびナノ粒子の分離方法2019

    • Inventor(s)
      鳥本 司,亀山達矢,山口奈緒子,竹岡敬和,坪井泰之,石原 一
    • Industrial Property Rights Holder
      名古屋大学、公立大学法人大阪
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2019-084653
    • Filing Date
      2019
    • Related Report
      2019 Annual Research Report

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Published: 2018-07-25   Modified: 2021-02-19  

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