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Broadband plasmon-induced charge separation and hydrogen generation dynamics

Research Project

Project/Area Number 21H02051
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 InstitutionThe University of Tokushima

Principal Investigator

FURUBE Akihiro  徳島大学, ポストLEDフォトニクス研究所, 教授 (30357933)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2023: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2022: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2021: ¥12,480,000 (Direct Cost: ¥9,600,000、Indirect Cost: ¥2,880,000)
Keywords光触媒 / プラズモン / 電荷分離 / ダイナミクス / 半導体薄膜 / ナノ材料 / 水素発生
Outline of Research at the Start

可視光及び近赤外光(400 nm~最大2500 nm)を効率よく吸収する金ナノ構造配列体と電子アクセプター半導体である酸化チタンや遷移金属ダイカルコゲナイド2次元材料を積層したプラズモン誘起電荷分離システムを作製し、フェムト秒過渡吸収分光法によるキャリアダイナミクスの詳細な解明研究を行う。水素発生助触媒への電子移動ダイナミクス、それに続く水素バブルダイナミクスの定量的評価を初めて実現する。特に電子アクセプター層のナノ薄膜化によりこれまで量子効率が低いままであったエネルギー変換効率の飛躍的上昇を目指す。

Outline of Final Research Achievements

The objectives were to fabricate a plasmon-induced charge separation system layered with gold nanostructure arrays and titanium oxide or transition metal dichalcogenide (TMDC) 2D materials, and to elucidate carrier dynamics using femtosecond transient absorption spectroscopy, as well as to quantitatively evaluate the electron transfer dynamics to the hydrogen evolution cocatalyst and the subsequent hydrogen bubble dynamics.
Titanium oxide thin films of 10~200 nm were fabricated on substrates with gold nanoparticle arrays, and a platinum cocatalyst was deposited. The photocatalytic performance showed high activity at the minimum film thickness. The charge separation and recombination dynamics in composite materials of gold nanoparticles and TMDC materials were elucidated.
A new spectroscopy system using an amplified femtosecond fiber laser was developed to replace the damaged light source.

Academic Significance and Societal Importance of the Research Achievements

太陽光からエネルギーを生成する「人工光合成」が注目されているが、赤色や近赤外光の利用が難しいという課題がある。本研究では、金ナノ粒子と半導体薄膜を用いた広帯域で応答するプラズモン誘起電荷分離の量子効率向上を目指した。
特に酸化チタンの薄膜化の効果に着目し、検討範囲で最小の10nmが最適であることを実証し、以前のダイナミクス研究に基づく予想の検証に成功した。酸化チタン以外の半導体のナノシートが金ナノ粒子と電荷移動相互作用を示すことも確認した。水素バブル発生の観察は、実験装置の故障から実現できなかったが、プラズモン誘起電荷分離の量子効率向上を実現するための指針に関する様々な知見を得ることができた。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (43 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (4 results) Journal Article (12 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 12 results,  Open Access: 1 results) Presentation (23 results) (of which Int'l Joint Research: 9 results,  Invited: 6 results) Remarks (4 results)

  • [Int'l Joint Research] Jilin University(中国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] 国立台湾科技大学(その他の国・地域)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Jilin University(中国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] National Taiwan Univ. of Sci. and Tech.(その他の国・地域)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Simulation Analysis of the Transient Absorption Spectroscopic Dynamics of Charge Recombination in a Semiconductor Attached with a Gold Nanoparticle Using Initially Variable Coordinates2024

    • Author(s)
      Wang Junli、Furube Akihiro
    • Journal Title

      Optoelectronics, Instrumentation and Data Processing

      Volume: - Issue: 1 Pages: 50-55

    • DOI

      10.3103/s8756699024700183

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Laser ablation synthesis of BiOCl/Ag/WO3 nanocomposite to evaluate its photocatalysis performance2024

    • Author(s)
      Lin Kai-Siang、Furube Akihiro、Katayama Testuro、Koinkar Pankaj、Wu Chang Mou
    • Journal Title

      Modern Physics Letters B

      Volume: - Issue: 04

    • DOI

      10.1142/s0217984924410070

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Improved photocatalytic activities of TiO2/MoO3/Au nanocomposite prepared by hydrothermal method2024

    • Author(s)
      Sawate Akash、Paul Niloy、Furube Akihiro、Katayama Tetsuro、Koinkar Pankaj
    • Journal Title

      Modern Physics Letters B

      Volume: - Issue: 04

    • DOI

      10.1142/s0217984924410069

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ternary composite WS2/GO/Au synthesized from laser ablation and hydrothermal method for photo- and electro-chemical degradation of methylene blue dye2024

    • Author(s)
      Shinde Vinayak、Tanwade Pratiksha、Katayama Tetsuro、Furube Akihiro、Sathe Bhaskar、Koinkar Pankaj
    • Journal Title

      Surfaces and Interfaces

      Volume: 46 Pages: 104067-104067

    • DOI

      10.1016/j.surfin.2024.104067

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Development of silver nanocubes created by pulsed laser ablation in liquid2024

    • Author(s)
      Paul Niloy、Sawate Akash、Sugano Satoshi、Katayama Tetsuro、Oishi Masatsugu、Furube Akihiro、Koinkar Pankaj
    • Journal Title

      International Journal of Modern Physics B

      Volume: 38 Issue: 12n13 Pages: 2440014-2440014

    • DOI

      10.1142/s0217979224400149

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Monte Carlo random walk simulation of transient absorption kinetics using reflectance and absorption of electrons at Au/TiO2 nanoparticle boundaries2024

    • Author(s)
      Wang Junli、Furube Akihiro
    • Journal Title

      International Journal of Modern Physics B

      Volume: 38 Issue: 12n13 Pages: 2440012-2440012

    • DOI

      10.1142/s0217979224400125

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ultrafast timescale charge carrier dynamics in nanocomposite hematite photoelectrodes2023

    • Author(s)
      Chen Yen-Jhih、Okazaki Masahiro、Furube Akihiro、Chen Liang-Yih
    • Journal Title

      Journal of Photochemistry and Photobiology A: Chemistry

      Volume: 442 Pages: 114820-114820

    • DOI

      10.1016/j.jphotochem.2023.114820

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Basic aspects of gold nanoparticle photo-functionalization using oxides and 2D materials: Control of light confinement, heat-generation, and charge separation in nanospace2022

    • Author(s)
      Akihiro Furube, Shin-ichiro Yanagiya, Pankaj M Koinkar, Tetsuro Katayama
    • Journal Title

      The Journal of Chemical Physics

      Volume: 157 Issue: 14 Pages: 140901-140901

    • DOI

      10.1063/5.0101300

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Photocatalytic performance under visible light of WS2/TiO2/Au synthesized by hydrothermal method2022

    • Author(s)
      Kejun Wu, Pankaj Koinkar, Akihiro Furube
    • Journal Title

      Modern Physics Letters B

      Volume: 36 Issue: 17 Pages: 2242025-2242025

    • DOI

      10.1142/s0217984922420258

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Laser assisted synthesis of WS2 nanorods by pulsed laser ablation in liquid environment2021

    • Author(s)
      Koinkar Pankaj、Sasaki Kohei、Katayama Tetsuro、Furube Akihiro、Sugano Satoshi
    • Journal Title

      International Journal of Modern Physics B

      Volume: 35 Issue: 14n16 Pages: 2140007-2140007

    • DOI

      10.1142/s0217979221400075

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Preparation of WS2-TiO2-Au using hydrothermal synthesis for photocatalysis under visible light2021

    • Author(s)
      Kejun Wu, Pankaj Koinkar, Akihiro Furube
    • Journal Title

      International Journal of Modern Physics B

      Volume: 35 Issue: 14n16 Pages: 2140046-2140046

    • DOI

      10.1142/s0217979221400464

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Liquid exfoliation of graphene oxide nanoribbons using chemical assisted laser ablation2021

    • Author(s)
      Siddhant Dhongade, Pankaj Koinkar, Akihiro Furube, Satoshi Sugano
    • Journal Title

      International Journal of Modern Physics B

      Volume: 35 Issue: 14n16 Pages: 2140009-2140009

    • DOI

      10.1142/s0217979221400099

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] Ultrafast Charge Transfer Dynamics in WS2/Au Nanohybrid System Fabricated by Pulsed Laser Ablation in Liquid2023

    • Author(s)
      Akihiro Furube, Kohei Sasaki, Tatsuki Kokufu, Tetsuro Katayama, Koinkar Pankaj
    • Organizer
      243rd ECS Meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Femtosecond Dynamics of Charge Transfer between Plasmonic Metal and Semiconductor Nanostructures2023

    • Author(s)
      Akihiro Furube, Yuto Tsurusaki, Kei Saika, Masaki Murase, Pankaj Koinkar, Tetsuro Katayama
    • Organizer
      The 31st International Conference on Photochemistry
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Ultrafast Spectroscopy of WS2/Au Nanohybrid System Fabricated by Pulsed Laser Ablation in Liquid2023

    • Author(s)
      Akihiro FURUBE, Kohei SASAKI, Tatsuki KOKUFU, Tetsuro KATAYAMA, Pankaj KOINKAR
    • Organizer
      光化学討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Monte Carlo Simulation of Electron Diffusion in Nano-Space for Analyzing Transient Absorption Dynamics of Plasmon-Induced Charge Transfer2023

    • Author(s)
      Junli Wang and Akihiro Furube
    • Organizer
      光化学討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 3D堆積AgナノワイヤーによるTiO2光触媒の可視光応答性増大とその電荷分離機構2023

    • Author(s)
      村瀬 将起、片山 哲郎、古部 昭広
    • Organizer
      光化学討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Simulation Analysis of Electron Diffusion in Circular Semiconductor Nanostrucutre after Ultrafast Electron Injection from Attaching Gold Nanoparticles2023

    • Author(s)
      Junli Wang, Pankaj Koinkar, Akihiro Furube
    • Organizer
      4th International Conference on Nanomaterials and Advanced Composites
    • Related Report
      2023 Annual Research Report
  • [Presentation] Hydrothermal synthesis of Pd/MoO3/rGO ternary composite for improved photocatalytic performance in methylene blue under visible light2023

    • Author(s)
      Akash Sawate, Tetsuro Katayama, Akihiro Furube, Pankaj Koinkar
    • Organizer
      4th International Conference on Nanomaterials and Advanced Composites
    • Related Report
      2023 Annual Research Report
  • [Presentation] Femtosecond Dynamics of Photoenergy Conversion by Plasmonic Metal Modified Semiconductor Nanostructures2023

    • Author(s)
      Akihiro Furube
    • Organizer
      pLED International symposium 2023: Exploring Invisible Light Technology
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Simulation Methods Analysis of Electron Diffusion in TiO2 Nanostructure after Ultrafast Electron Injection from Attaching Gold Nanoparticles Measured by Transient Absorption2023

    • Author(s)
      Junli Wang and Akihiro Furube
    • Organizer
      pLED International symposium 2023: Exploring Invisible Light Technology
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 液中レーザーアブレーション法を用いたp-GaNとAuのナノ複合材料の作製と分光特性評価2023

    • Author(s)
      雑賀敬,片山哲郎,古部昭広
    • Organizer
      第70回応用物理学会春季講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 顕微ラマン分光法による酸化チタン被覆金ナノ粒子配列体薄膜の構造解析2023

    • Author(s)
      鶴崎 勇斗, 國府 樹, 片山 哲郎, 古部 昭広, 松尾 保孝
    • Organizer
      第70回応用物理学会春季講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Preparation and Characterization of WS2-TiO2-Au Nanohybrid System Using Hydrothermal Synthesis for Photocatalysis Under Visible Light2022

    • Author(s)
      Akihiro Furube, Kejun Wu, and Pankaj Koinkar
    • Organizer
      241st ECS Meeting (Web会議)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Characterization of tungsten sulfide nanosheets attached on gold nanoparticles modified SERS active substrates2022

    • Author(s)
      Tatsuki Kokufu, Daichi Nakayama, Tetsuro Katayama, Koinkar Pankaj, Akihiro Furube
    • Organizer
      The 13th Asia-Pacific Conference on Near-Field Optics
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 金ナノ粒子と窒化ガリウム微粒子の複合材料の作製と界面電荷ダイナミクス2022

    • Author(s)
      雑賀 敬、片山 哲郎、古部 昭広
    • Organizer
      2022年光化学討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 酸化チタン被覆金ナノ粒子配列体薄膜における活性酸素発生効率の膜厚依存性2022

    • Author(s)
      鶴崎 勇斗、國府 樹、片山 哲郎、古部 昭広
    • Organizer
      2022年光化学討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 3D堆積Agナノワイヤー/TiO2を用いた可視応答光触媒シートの開発と電荷分離ダイナミクス2022

    • Author(s)
      村瀬 将起、片山 哲郎、古部 昭広
    • Organizer
      2022年光化学討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] プラズモン金属修飾半導体ナノ構造による光エネルギー変換プロセスのメカニズム2022

    • Author(s)
      古部 昭広
    • Organizer
      日本セラミックス協会 第35回秋季シンポジウム (Web会議)
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 硫化タングステンナノシート及び金ナノ粒子を修飾したSERS活性基板の作製とその分光特性評価2022

    • Author(s)
      國府 樹, 片山 哲郎, コインカー パンカジ, 古部 昭広
    • Organizer
      第69回応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Charge Carrier Dynamics of In2Se3 Nanocubes and Plasmonic Composites Fabricated By Laser Ablation As Primary Processes of Solar Energy Conversion,2021

    • Author(s)
      Siddhant Dhongade, Tetsuro Katayama, Pankaj Koinkar, Maki Yutaro and Akihiro Furube
    • Organizer
      239th ECS Meeting (Web会議)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 硫化タングステン微粒子を修飾した金ナノ粒子ガラス基板の作製とその分光特性評価2021

    • Author(s)
      國府 樹, 中山 大知, 片山 哲郎, コインカー パンカジ, 古部 昭広
    • Organizer
      応用物理・物理系 中国四国支部合同学術講演会 (Web会議)
    • Related Report
      2021 Annual Research Report
  • [Presentation] プラズモン材料およびペロブスカイト単一結晶における電荷移動ダイナミクス2021

    • Author(s)
      古部 昭広, 片山 哲郎
    • Organizer
      第82回応用物理学会秋季学術講演会 (Web会議)
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Photocatalytic performance under visible light of composite WS2/TiO2/Au synthesized by ultrasonication and hydrothermal method2021

    • Author(s)
      Wu Kejun, Pankaj Koinkar and Akihiro Furube
    • Organizer
      9th International Conference on Advanced Materials Development & Performance (Web会議)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication and Spectroscopic Characterization of Gold Nanoparticle Arrays Modified with Tungsten Sulfide Particles2021

    • Author(s)
      Kokufu Tatsuki, Nakayama Daichi, Tetsuro Katayama, Pankaj Koinkar and Akihiro Furube
    • Organizer
      11th Asian Photochemistry Conference (Web会議)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Remarks] Homepage of Akihiro Furube

    • URL

      https://www.furube.com/

    • Related Report
      2023 Annual Research Report
  • [Remarks] 徳島大学 教育研究者総覧

    • URL

      http://pub2.db.tokushima-u.ac.jp/ERD/person/292878/profile-ja.html

    • Related Report
      2023 Annual Research Report
  • [Remarks] 徳島大学 教育研究者総覧 古部昭広

    • URL

      http://pub2.db.tokushima-u.ac.jp/ERD/person/292878/work-ja.html

    • Related Report
      2022 Annual Research Report
  • [Remarks] 徳島大学 教育研究者総覧 古部昭広

    • URL

      http://pub2.db.tokushima-u.ac.jp/ERD/person/292878/work-ja.html

    • Related Report
      2021 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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