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Development of a single crystalline CuGaSe2-based photocathode

Research Project

Project/Area Number 19H02822
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 36020:Energy-related chemistry
Research InstitutionKonan University

Principal Investigator

Ikeda Shigeru  甲南大学, 理工学部, 教授 (40312417)

Co-Investigator(Kenkyū-buntansha) 櫻井 岳暁  筑波大学, 数理物質系, 教授 (00344870)
野瀬 嘉太郎  京都大学, 工学研究科, 准教授 (00375106)
和田 隆博  龍谷大学, 先端理工学部, 教授 (20309115)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2021: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2020: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2019: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Keywords半導体光電極 / 太陽エネルギー変換 / 水分解水素製造 / 化合物半導体 / バルクおよび表面修飾 / 光電極 / 水分解水素発生 / 単結晶 / 人工光合成 / CuGaSe2単結晶 / 面方位制御 / 二酸化炭素の還元 / 水の分解 / エネルギー変換 / バルク物性制御 / シングルクリスタル / 欠陥・構造制御
Outline of Research at the Start

高効率な光電気化学的太陽エネルギー変換を実現するため、化合物半導体単結晶を利用した光電極を作製する。CuGaSe2を例として、第一原理計算、化学ポテンシャル図等を併用した理論的解析により、欠陥の種類と安定性を明らかにし、これらに基づいて、単結晶をベースとする光電極を精密合成する。また、各種分析法によってバルクおよび表面・界面の物性を評価・フィードバックしてさらなる高機能化をはかる。

Outline of Final Research Achievements

To improve device properties based on wide-gap chalcopyrite CuGaSe2 (CGS) for photoelectrochemical (PEC) water splitting, a high-quality single crystal was prepared. PEC hydrogen production was successfully demonstrated by applying appropriate post treatments to the wafer based on the thus-obtained CuGaSe2 single crystal. Moreover, we found influences of cutting directions of the single crystalline ingot on properties of PEC water reduction. Analyses of the single crystalline wafers indicated that formation of a cupper deficient layer (CDL) was effective for induction of efficient PEC functions. Based on this finding, PEC activity for water reduction over a CuGaSe2 thin film was evaluated with focusing on the impact of a CDL intentionally loaded on the top of the CuGaSe2 film. As a result, the CDL with an appropriate thickness was found to be effective for achieving a large current flow and relatively positive photocurrent onset.

Academic Significance and Societal Importance of the Research Achievements

太陽光を使った水分解水素製造は、化石資源を用いない水素製造法として注目される。我々が現在活用できる技術は、太陽光発電と水電解(PV+PEC)を組み合わせた方式であるが、設備等のコストに大きな課題がある。光電極による水分解は、一段で太陽光と水から水素を製造する技術であり、コスト面でPV+PECに比べて圧倒的に有利である。本研究では、そのような光電極の水素発生機能を向上でせるための電極設計指針を提案し、また、実際に高機能光電極が得られることも実証した。水分解水素製造技術とするには、酸素発生側の電極との接合が必要であるため、現在電極特性のさらなる向上と合わせて継続的に研究を進めている。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (25 results)

All 2022 2021 2020 2019

All Journal Article (14 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 14 results,  Open Access: 5 results) Presentation (11 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results)

  • [Journal Article] Self-flux method in sputtered BiVO4 films for enhanced photoelectrochemical performance2022

    • Author(s)
      J. Liu, N. Uezono, K. Tajima, S. Pawar, M. M. Islam, S. Ikeda, T. Sakurai
    • Journal Title

      ACS Appl. Energy Mater.

      Volume: 5 Issue: 4 Pages: 4191-4201

    • DOI

      10.1021/acsaem.1c03626

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Copper-based kesterite thin films for photoelectrochemical water splitting2021

    • Author(s)
      S. Ikeda
    • Journal Title

      High Temp. Mater. Process.

      Volume: 40 Issue: 1 Pages: 446-460

    • DOI

      10.1515/htmp-2021-0050

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of incorporation of Ag into a kesterite Cu2ZnSnS4 thin film on its photoelectrochemical properties for water reduction2021

    • Author(s)
      S. Ikeda, T. H. Nguyen, R. Okamoto, I. Abdellaoui, M. M. Islam, T. Harada, R. Abe, T. Sakurai
    • Journal Title

      Phys. Chem. Chem. Phys.

      Volume: 24 Issue: 8 Pages: 468-476

    • DOI

      10.1063/5.0060494

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Enhancement of the photoelectrochemical properties of a CuGaSe2-based photocathode for water reduction induced by loading of a Cu-deficient layer at the p-n heterointerface2021

    • Author(s)
      S. Ikeda, R. Okamoto, S. Ishizuka
    • Journal Title

      Appl. Phys. Lett.

      Volume: 119

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of Radio-Frequency Power on the Composition of BiVO4 Thin-Film Photoanodes Sputtered from a Single Target2021

    • Author(s)
      Liu Jiaqi、Tajima Kazuya、Abdellaoui Imane、Islam Muhammad Monirul、Ikeda Shigeru、Sakurai Takeaki
    • Journal Title

      Energies

      Volume: 14 Issue: 8 Pages: 2122-2122

    • DOI

      10.3390/en14082122

    • NAID

      120007190951

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 3.17% efficient Cu2ZnSnS4-BiVO4 integrated tandem cell for standalone overall solar water splitting2021

    • Author(s)
      Huang Dingwang、Wang Kang、Li Lintao、Feng Kuang、An Na、Ikeda Shigeru、Kuang Yongbo、Ng Yunhau、Jiang Feng
    • Journal Title

      Energy & Environmental Science

      Volume: 14 Issue: 3 Pages: 1480-1489

    • DOI

      10.1039/d0ee03892j

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Mechanism of Incorporation of Zirconium into BiVO4 Visible-Light Photocatalyst2021

    • Author(s)
      Abdellaoui Imane、Islam Muhammad M.、Remeika Mikas、Kanno Sorai、Okamoto Riku、Tajima Kazuya、Pawar Sachin A.、Ng Yun Hau、Budich Christian、Maeda Tsuyoshi、Wada Takahiro、Ikeda Shigeru、Sakurai Takeaki
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 125 Issue: 6 Pages: 3320-3326

    • DOI

      10.1021/acs.jpcc.1c00339

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Synthesis of nano-sized tungsten oxide particles encapsulated in a hollow silica sphere and their photocatalytic properties for decomposition of acetic acid using Pt as a co-catalyst2020

    • Author(s)
      Harada Takashi、Yagi En、Ikeda Shigeru
    • Journal Title

      RSC Advances

      Volume: 10 Issue: 26 Pages: 15360-15365

    • DOI

      10.1039/d0ra01988g

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [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, Tsukasa Torimoto
    • Journal Title

      ACS Applied Nano Materials

      Volume: 3 Issue: 4 Pages: 3275-3287

    • DOI

      10.1021/acsanm.9b02608

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] MoSx-CdS/Cu2ZnSnS4-based thin film photocathode for solar hydrogen evolution from water2020

    • Author(s)
      Feng Kuang、Huang Dingwang、Li Lintao、Wang Kang、Li Jingbo、Harada Takashi、Ikeda Shigeru、Jiang Feng
    • Journal Title

      Applied Catalysis B: Environmental

      Volume: 268 Pages: 118438-118438

    • DOI

      10.1016/j.apcatb.2019.118438

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Preparation of a CuGaSe2 single crystal and its photocathodic properties2020

    • Author(s)
      Ikeda Shigeru、Fujita Wakaba、Okamoto Riku、Nose Yoshitaro、Katsube Ryoji、Yoshino Kenji、Harada Takashi
    • Journal Title

      RSC Advances

      Volume: 10 Issue: 66 Pages: 40310-40315

    • DOI

      10.1039/d0ra07904a

    • NAID

      120006936343

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Photocarrier Recombination Dynamics in BiVO4 for Visible-Light Driven Water Oxidation2020

    • Author(s)
      I. Abdellaoui, M.M. Islam, M. Remeika, Y. Higuchi, T. Kawaguchi, T. Harada, C. Budich, T. Maeda, T. Wada, S. Ikeda, and T. Sakurai
    • Journal Title

      J. Phys. Chem. C

      Volume: 124 Issue: 7 Pages: 3962-3972

    • DOI

      10.1021/acs.jpcc.9b10621

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Photocathode Characteristics of a Spray-Deposited Cu2ZnGeS4 Thin Film for CO2 Reduction in a CO2-Saturated Aqueous Solution2019

    • Author(s)
      Ikeda Shigeru、Fujikawa Shotaro、Harada Takashi、Nguyen Thi Hiep、Nakanishi Shuji、Takayama Tomoaki、Iwase Akihide、Kudo Akihiko
    • Journal Title

      ACS Applied Energy Materials

      Volume: 2 Issue: 9 Pages: 6911-6918

    • DOI

      10.1021/acsaem.9b01418

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Photoelectrochemical CO2 Reduction to Formate with the Sacrificial Reagent Free System of Semiconductor Photocatalysts and Formate Dehydrogenase2019

    • Author(s)
      Tomoya Ishibashi, Masanobu Higashi, Shigeru Ikeda, Yutaka Amao
    • Journal Title

      ChemCatChem

      Volume: 11 Issue: 24 Pages: 6227-6235

    • DOI

      10.1002/cctc.201901563

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] 自己フラックス法を用いたスパッタリングによるBiVO4薄膜の光電気化学特性向上2022

    • Author(s)
      J. Liu, 上園波輝, 田島和哉, S.A Pawar, M. M. Islam, 池田 茂, 櫻井岳暁
    • Organizer
      2021年度応用物理学会多元系化合物・太陽電池研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Photoelectrochemical Applications of Chalcopyrite and Kesterite Compound Thin Film2021

    • Author(s)
      S. Ikeda
    • Organizer
      The 4th Energy Future Conference (EF4)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] CuGaSe2単結晶を用いた光電極での水の光電気化学的還元反応2020

    • Author(s)
      藤田わかば, 勝部涼司, 野瀬嘉太郎, 吉野賢二, 池田 茂
    • Organizer
      第9回JACI/GSCシンポジウム
    • Related Report
      2020 Annual Research Report
  • [Presentation] CuGaSe2単結晶光電極による水の還元反応2020

    • Author(s)
      藤田わかば, 吉野賢二, 勝部涼司, 野瀬嘉太郎, 原田隆史, 池田 茂
    • Organizer
      第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 光触媒および光電気化学的手法による水分解2020

    • Author(s)
      池田 茂
    • Organizer
      崎大学農学工学総合研究科農工定期セミナー特別講演会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Electric and Photoelectrochemical Properties of CuGaSe2 Single Crystal2020

    • Author(s)
      S. Ikeda, W. Fujita, Y. Nose, R. Katsube, K. Yoshino, T. Harada
    • Organizer
      Pacific Rim Meeting on Electrochemical and Solid-state Science (PRiME 2020)
    • Related Report
      2020 Annual Research Report
  • [Presentation] Cu(InGa)Se2バルク結晶のオフストイキオメトリー制御と物性2019

    • Author(s)
      藤田わかば, 勝部涼司, 野瀬嘉太郎, 吉野賢二, 池田 茂
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Recombination mechanism in BiVO4 photocatalyst studied by photoluminescence2019

    • Author(s)
      I. Abdellaoui, K. Tajima, T. Kawaguchi, S. Ikeda, M. M. Islam, T. Sakurai
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Preparation of a CuGaSe2 bulk crystal and its photoelectrochemical properties2019

    • Author(s)
      W. Fujita, T. Wada, K. Yoshino, Y. Nose, T. Harada, S. Ikeda
    • Organizer
      International Conference on Artificial Photosynthesis-2019 (ICARP2019)
    • Related Report
      2019 Annual Research Report
  • [Presentation] Photoelectrochemical CO2 reduction over a spray-deposited Cu2ZnGeS4 thin film photocathode2019

    • Author(s)
      K. Mizutani, S. Fujikawa, T. Harada, S. Nakanishi, T. Takayama, A. Iwase, A. Kudo, S. Ikeda
    • Organizer
      International Conference on Artificial Photosynthesis-2019 (ICARP2019)
    • Related Report
      2019 Annual Research Report
  • [Presentation] Highly active Zr-doped BiVO4 photocatalyst for O2 evolution obtained by a solution route2019

    • Author(s)
      H. Yui, I. Abdellaoui, M. M. Islam, T. Sakurai, S. Ikeda
    • Organizer
      International Conference on Artificial Photosynthesis-2019 (ICARP2019)
    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2023-01-30  

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