• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Modulation of optoelectronic properties of conjugated polymers containing hyper valent heavy elements

Research Project

Project/Area Number 21H02001
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 35020:Polymer materials-related
Research InstitutionKyoto University

Principal Investigator

Tanaka Kazuo  京都大学, 地球環境学堂, 教授 (90435660)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2023: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2021: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Keywords近赤外 / 共役系高分子 / 発光 / 超原子価
Outline of Research at the Start

研究代表者は最近、14族高周期元素が超原子価状態でπ共役系分子の最高占有軌道(HOMO)上昇と最低非占軌道(LUMO)下降を同時に起こす(同時異方向摂動効果)という新しい狭エネルギーギャップ化の機構を見出した。本研究では、この効果を共役系高分子の主鎖共役に適用し、そこから得られる新物性の体系的理解を学術的な「問い」として学理を探究する。具体的には、安定性の高い超原子価Sn・Ge錯体を中心として共役系高分子を合成し、光・電子物性の調査と、発光材料への応用を図る。近赤外発光性高分子、ベイポクロミズム発光性高分子フィルム、メカノクロミズム発光性高分子フィルムの理論的設計指針の確立が期待できる。

Outline of Final Research Achievements

In this research, we will develop transparent near-infrared absorbing and emitting polymers that allow light in the visible region to pass through and enable solar power generation using only near-infrared light. Light with wavelengths over 700 nm accounts for 55% of sunlight. Since the solar panels are black in color, they cannot be installed on the windows of buildings. If there is a material that can transmit visible light, efficiently absorb near-infrared light, and efficiently transmit excitons, it would be possible to generate electricity using the near-infrared light contained in sunlight even through windows. becomes possible. To achieve this goal, we developed a light-emitting material using a conjugated polymer as a scaffold that transmits visible light and absorbs only near-infrared light. The objective was achieved through substituent effects in polymers with azobenzene complexes.

Academic Significance and Societal Importance of the Research Achievements

本研究では例として透明で近赤外発光を示す材料を得ることができた。また、近赤外吸収による光発電効率の向上の他に、さらなる用途についても応用展開が期待できる。例えば、植物の生育抑制については750 nm程度の光が有用であることが分かっている。本研究で得られた材料は可視光を透過し、近赤外領域の光を吸収することができるので、光合成の効率は維持しつつ太陽光の中の近赤外光成分を除去することで、植物の生育を劇的に向上するフィルム材料の創出が期待できる。それぞれの用途において特に発光波長の調節と効率向上について引き続き材料開発を進めていくことで成果の普及を目指す。

Report

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

    (46 results)

All 2024 2023 2022 2021 Other

All Journal Article (32 results) (of which Peer Reviewed: 31 results,  Open Access: 4 results) Presentation (10 results) (of which Int'l Joint Research: 10 results,  Invited: 10 results) Remarks (2 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Synthesis of Regioregular and Random Boron‐Fused Azomethine Conjugated Polymers for Film Morphology Control2024

    • Author(s)
      Ohtani Shunsuke、Gon Masayuki、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Chemistry An Asian Journal

      Volume: - Issue: 7

    • DOI

      10.1002/asia.202301136

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synthesis, cation exchange, and optical properties of pyrene-based chromophores containing [CB9H9]? and [CB11H11]? cluster units2024

    • Author(s)
      Ochi Junki、Yanagihara Takumi、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Bulletin of the Chemical Society of Japan

      Volume: 97 Issue: 1

    • DOI

      10.1093/bulcsj/uoae005

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] UV-to-NIR Wavelength Conversion of π-Conjugated Polymers Based on Pyrene-Substituted Boron-Fused Azobenzene Complexes2023

    • Author(s)
      Nakamura Masashi、Yamauchi Momona、Gon Masayuki、Tanaka Kazuo
    • Journal Title

      Macromolecules

      Volume: 56 Issue: 18 Pages: 7571-7578

    • DOI

      10.1021/acs.macromol.3c01124

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Highly efficient luminescence from boron β-dialdiminates and their π-conjugated polymers in both solutions and solids: significant impact of the substituent position on luminescence behavior2023

    • Author(s)
      Ito Shunichiro、Hashizume Miyako、Taka Hideo、Kita Hiroshi、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Materials Chemistry Frontiers

      Volume: 7 Issue: 20 Pages: 4971-4983

    • DOI

      10.1039/d3qm00761h

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Design for a Pure-Blue-Emissive Polymer Film through the Selective Perturbation of the Energy Level of the Highest Occupied Molecular Orbital in a Boron Complex2023

    • Author(s)
      Suenaga Kazumasa、Watanabe Aoi、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Macromolecules

      Volume: 56 Issue: 16 Pages: 6419-6425

    • DOI

      10.1021/acs.macromol.3c01115

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Enhancement of Near-Infrared Emission Based on Hypervalent Germanium(IV)-Fused Azobenzene Compounds with Electron-Donating Groups2023

    • Author(s)
      Gon Masayuki、Yaegashi Misao、Tanaka Kazuo
    • Journal Title

      Bulletin of the Chemical Society of Japan

      Volume: 96 Issue: 8 Pages: 778-784

    • DOI

      10.1246/bcsj.20230120

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Design and Synthesis of Far‐Red to Near‐Infrared Chromophores with Pyrazine‐Based Boron Complexes2023

    • Author(s)
      Takahashi Hiromasa、Watanabe Hiroyuki、Ito Shunichiro、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Chemistry-An Asian Journal

      Volume: 18 Issue: 16

    • DOI

      10.1002/asia.202300489

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Stimuli-Responsive π-Conjugated Polymers Showing Solid-State Emission Based on Boron-Fused Azomethine Complexes with NNO-Tridentate Ligands2023

    • Author(s)
      Kanjo Misato、Gon Masayuki、Tanaka Kazuo
    • Journal Title

      ACS Applied Materials & Interfaces

      Volume: 15 Issue: 26 Pages: 31927-31934

    • DOI

      10.1021/acsami.3c06277

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Selective modulation of energy levels of frontier orbitals in solid-state luminescent boron-fused azomethine polymers with orthogonal orientations to the main chains2023

    • Author(s)
      Gon Masayuki、Kanjo Misato、Ohtani Shunsuke、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Polymer Chemistry

      Volume: 14 Issue: 24 Pages: 2893-2901

    • DOI

      10.1039/d3py00335c

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Facile Preparation of Near Infrared-Luminescent Protein Complexes with Conjugated Polymers Consisting of Boron Azobenzene Units2023

    • Author(s)
      Yoo Dahye、Nakamura Masashi、Kanjo Misato、Gon Masayuki、Watanabe Hiroyuki、Kita Hiroshi、Tanaka Kazuo
    • Journal Title

      Bulletin of the Chemical Society of Japan

      Volume: 96 Issue: 7 Pages: 659-662

    • DOI

      10.1246/bcsj.20230083

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Enhancement of the Lowering Effect on Energy Levels of LUMO by the Formation of B?N Dative Bond for Near‐infrared Light Absorption Properties Based on 1,3,4,6,8,9?b‐Hexaazaphenalene2023

    • Author(s)
      Watanabe Hiroyuki、Ito Yoshinori、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Asian Journal of Organic Chemistry

      Volume: 12 Issue: 6

    • DOI

      10.1002/ajoc.202300156

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Effects of Central Elements on the Properties of Group 13 Dialdiminate Complexes2023

    • Author(s)
      Aoyama Yuto、Sakai Yuki、Ito Shunichiro、Tanaka Kazuo
    • Journal Title

      Chemistry-A European Journal

      Volume: 29 Issue: 38

    • DOI

      10.1002/chem.202300654

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synthesis, Characterization, and Photoluminescence Properties of Boron Tropolonate Complexes: From Fluorescence to Room Temperature Phosphorescence2023

    • Author(s)
      Ogoshi Hikari、Ito Shunichiro、Tanaka Kazuo
    • Journal Title

      Bulletin of the Chemical Society of Japan

      Volume: 96 Issue: 5 Pages: 452-460

    • DOI

      10.1246/bcsj.20230058

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Solid-State Near-Infrared Emission of π-Conjugated Polymers Consisting of Boron Complexes with Vertically Projected Steric Substituents2023

    • Author(s)
      Nakamura Masashi、Gon Masayuki、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Macromolecules

      Volume: - Issue: 7 Pages: 2709-2718

    • DOI

      10.1021/acs.macromol.2c02578

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of Hypervalent Bismuth on Electronic Properties of the Azobenzene Tridentate Ligand and Roles of Lewis Acidity in Controlling Optical Properties2023

    • Author(s)
      Tanimura Kazuya、Gon Masayuki、Tanaka Kazuo
    • Journal Title

      Inorganic Chemistry

      Volume: 62 Issue: 11 Pages: 4590-4597

    • DOI

      10.1021/acs.inorgchem.2c04478

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Vapochromic films of π-conjugated polymers based on coordination and desorption at hypervalent tin(<scp>iv</scp>)-fused azobenzene compounds2023

    • Author(s)
      Gon Masayuki、Morisaki Yusuke、Tanimura Kazuya、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Materials Chemistry Frontiers

      Volume: 7 Issue: 7 Pages: 1345-1353

    • DOI

      10.1039/d2qm01295b

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Near‐Infrared Emissive Hypervalent Compounds with Germanium(IV)‐Fused Azobenzene π‐Conjugated Systems2023

    • Author(s)
      Gon Masayuki、Yaegashi Misao、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Chemistry -A European Journal

      Volume: 29 Issue: 12

    • DOI

      10.1002/chem.202203423

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Position Dependent Effects of the Aza‐Substitution on the Electronic Properties and Crystal Structures Based on Hexaazaphenalene Isomers2022

    • Author(s)
      Watanabe Hiroyuki、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Asian Journal of Organic Chemistry

      Volume: 11 Issue: 9

    • DOI

      10.1002/ajoc.202200221

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of Regioregularity of <i>π</i> ‐Conjugated Polymers Composed of Boron <i>β</i> ‐Diketiminate on Their Stimuli‐Responsive Luminescence2022

    • Author(s)
      Ito Shunichiro、Fukuyama Misuzu、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Macromolecular Chemistry and Physics

      Volume: - Issue: 9 Pages: 2100504-2100504

    • DOI

      10.1002/macp.202100504

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Controlling the Dual‐Emission Character of Aryl‐Modified <i>o</i> ‐Carboranes by Intramolecular CH???O Interaction Sites2022

    • Author(s)
      Ochi Junki、Yuhara Kazuhiro、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Chemistry ? A European Journal

      Volume: - Issue: 20

    • DOI

      10.1002/chem.202200155

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Switching between intramolecular charge transfer and excimer emissions in solids based on aryl-modified ethynyl?o-carboranes2022

    • Author(s)
      Yamamoto Hideki、Ochi Junki、Yuhara Kazuhiro、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Cell Reports Physical Science

      Volume: 3 Issue: 2 Pages: 100758-100758

    • DOI

      10.1016/j.xcrp.2022.100758

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of NIR emissive fully-fused bisboron complexes with π-conjugated systems including multiple azo groups2022

    • Author(s)
      Nakamura Masashi、Gon Masayuki、Natsuda Shin-ichiro、Tamai Yasunari、Ohkita Hideo、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Dalton Transactions

      Volume: 51 Issue: 1 Pages: 74-84

    • DOI

      10.1039/d1dt03652a

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Near-infrared-emissive π-conjugated polymers based on five-coordinated silicon formazanate complexes2022

    • Author(s)
      Ito Shunichiro、Ito Yoshinori、Kazuo Tanaka、Chujo Yoshiki
    • Journal Title

      Polymer

      Volume: 239 Pages: 124463-124463

    • DOI

      10.1016/j.polymer.2021.124463

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synthesis, crystal structure, solid-state optical property and C?H activation of sp3 carbon of highly-stable 1-(2′,6′-dimesitylphenyl)-2,3,4,5-tetraphenylborole2021

    • Author(s)
      Himeno Ryoji、Ito Shunichiro、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      New Journal of Chemistry

      Volume: 45 Issue: 48 Pages: 22569-22573

    • DOI

      10.1039/d1nj04666g

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of Long Wavelength Light-Absorptive Homopolymers Based on Pentaazaphenalene by Regioselective Oxidative Polymerization2021

    • Author(s)
      Watanabe Hiroyuki、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Polymers

      Volume: 13 Issue: 22 Pages: 4021-4021

    • DOI

      10.3390/polym13224021

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Rational design for thermochromic luminescence in amorphous polystyrene films with bis‐ o ‐carborane‐substituted enhanced conjugated molecule having aggregation‐induced luminochromism2021

    • Author(s)
      Wada Keisuke、Hashimoto Kazushi、Ochi Junki、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Aggregate

      Volume: 2 Issue: 5

    • DOI

      10.1002/agt2.93

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dimerization-Induced Solid-State Excimer Emission Showing Consecutive Thermochromic Luminescence Based on Acridine-Modified <i>o</i>-Carboranes2021

    • Author(s)
      Ochi Junki、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Inorganic Chemistry

      Volume: 60 Issue: 12 Pages: 8990-8997

    • DOI

      10.1021/acs.inorgchem.1c00901

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Effect of the Substituent Positions on Self-Assembly Behaviors of Liquid-Crystalline 1,3,4,6,9b-Pentaazaphenalene Derivatives2021

    • Author(s)
      Watanabe Hiroyuki、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Bulletin of the Chemical Society of Japan

      Volume: 94 Issue: 7 Pages: 1854-1858

    • DOI

      10.1246/bcsj.20210150

    • NAID

      130008076890

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] PPV-type π-conjugated polymers based on hypervalent tin(IV)-fused azobenzene complexes showing near-infrared absorption and emission2021

    • Author(s)
      Gon Masayuki、Tanimura Kazuya、Yaegashi Misao、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Polymer Journal

      Volume: 53 Issue: 11 Pages: 1241-1249

    • DOI

      10.1038/s41428-021-00506-x

    • NAID

      120007184452

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Modulation of stimuli‐responsiveness toward acid vapor between real‐time and write‐erase responses based on conjugated polymers containing azobenzene and Schiff base moieties2021

    • Author(s)
      Kato Taichi、Gon Masayuki、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Journal of Polymer Science

      Volume: 59 Issue: 14 Pages: 1596-1602

    • DOI

      10.1002/pol.20210329

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Reversible Vapochromic Luminescence Accompanied by Planar Half‐Chair Conformational Change of a Propeller‐Shaped Boron β‐Diketiminate Complex2021

    • Author(s)
      Ito Shunichiro、Yaegashi Misao、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Chemistry ? A European Journal

      Volume: 27 Issue: 36 Pages: 9302-9312

    • DOI

      10.1002/chem.202101107

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The effect of alkyl chain lengths on the red-to-near-infrared emission of boron-fused azomethine conjugated polymers and their film-state stimuli-responsivities2021

    • Author(s)
      Ohtani Shunsuke、Yamada Natsumi、Gon Masayuki、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Polymer Chemistry

      Volume: - Issue: 18 Pages: 2752-2759

    • DOI

      10.1039/d1py00213a

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] Design for NIR AIE-active materials without expanding π-conjugated systems2023

    • Author(s)
      Kazuo Tanaka
    • Organizer
      Aggregation forum 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Logical Design for Functional NIR Materials Based on AIE-Active Element-Blocks2023

    • Author(s)
      Kazuo Tanaka
    • Organizer
      2023 MRS Spring Meeting & Exhibit
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Design and Application of Boron-Containing AIEgens2023

    • Author(s)
      Kazuo Tanaka
    • Organizer
      Tutorial lecture, 2023 MRS Spring Meeting & Exhibit
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of Chemical Sensors for Plastic Materials2022

    • Author(s)
      Kazuo Tanaka
    • Organizer
      PPC17
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] A New Strategy for Developing NIR-AIEgens Based on Aza-Substitution at the Isolated LUMO Position2022

    • Author(s)
      Kazuo Tanaka
    • Organizer
      IC-AIE-FA 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] New strategy for designing NIR-luminescent materials without expansion of π-conjugated system2022

    • Author(s)
      Kazuo Tanaka
    • Organizer
      Japan-US Workshop on Organic/Inorganic Hybrid Materials
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of stimuli-responsive luminescent polymers based on a flexible “element-block”2021

    • Author(s)
      Kazuo Tanaka
    • Organizer
      ACS spring meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Design for solid-state NIR-emissive materials based on aza-substituted AIEgens2021

    • Author(s)
      Kazuo Tanaka
    • Organizer
      International Conference on Aggregate Science 20th Anniversary of AIE Research
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of film-type sensors based on stimuli-responsive conjugated polymers containing element-blocks2021

    • Author(s)
      Kazuo Tanaka
    • Organizer
      PACIFICHEM2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Design of Stimuli-Responsive Luminescent Materials Containing Flexible Boron “Element-Blocks”2021

    • Author(s)
      Kazuo Tanaka
    • Organizer
      PACIFICHEM2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Remarks] 研究内容

    • URL

      https://poly.synchem.kyoto-u.ac.jp/research/

    • Related Report
      2022 Annual Research Report
  • [Remarks] 発表論文リスト

    • URL

      https://poly.synchem.kyoto-u.ac.jp/publications/

    • Related Report
      2022 Annual Research Report
  • [Patent(Industrial Property Rights)] 色素とその製造方法、溶液、金属水酸基量の評価方法、金属水酸基処理率の評価方法2022

    • Inventor(s)
      田中一生;権 正行;中條善樹;武田 怜;伊藤 智海;原田 健司
    • Industrial Property Rights Holder
      田中一生;権 正行;中條善樹;武田 怜;伊藤 智海;原田 健司
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2022-026890
    • Filing Date
      2022
    • Related Report
      2021 Annual Research Report
  • [Patent(Industrial Property Rights)] 化合物2021

    • Inventor(s)
      田中一生;中條善樹;権 正行;秋山誠治、他3名
    • Industrial Property Rights Holder
      田中一生;中條善樹;権 正行;秋山誠治、他3名
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2021-030493
    • Filing Date
      2021
    • Related Report
      2021 Annual Research Report

URL: 

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

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi