YAMASHITA Yu 山下侑

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Yamashita Yu 山下侑

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Researcher Number	80847773
Other IDs	https://orcid.org/0000-0001-7080-6497
Affiliation (Current)	2026: 国立研究開発法人物質・材料研究機構, ナノアーキテクトニクス材料研究センター, 主任研究員 2026: 東京大学, 大学院新領域創成科学研究科, 准教授
Affiliation (based on the past Project Information) *help	2024: 国立研究開発法人物質・材料研究機構, ナノアーキテクトニクス材料研究センター, 主任研究員 2023: 国立研究開発法人物質・材料研究機構, ナノアーキテクトニクス材料研究センター, 研究員 2020 – 2022: 国立研究開発法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, NIMSポスドク研究員
Review Section/Research Field	Principal Investigator Basic Section 35030:Organic functional materials-related
Keywords	Principal Investigator ダイオード / 化学ドーピング / 高分子半導体 / 有機半導体 / 導電性高分子 / ドーピング / 光電変換素子 / オーミック接合 / 仕事関数制御 / 仕事関数

Development of Organic Electronic Devices via Spatially Controlled Ion-Exchange DopingPrincipal Investigator
- Principal Investigator
  
  YAMASHITA Yu
- Project Period (FY)
  2024
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 35030:Organic functional materials-related
- Research Institution
  National Institute for Materials Science
High work function polymeric electrodes for Ohmic contact and efficient photoelectric conversionPrincipal Investigator
- Principal Investigator
  
  Yamashita Yu
- Project Period (FY)
  2020 – 2021
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 35030:Organic functional materials-related
- Research Institution
  National Institute for Materials Science

All 2025 2024 2023 2022 2021 2020

All Journal Article Presentation Patent

[Journal Article] Circular Flow Alignment of Polymeric Semiconductor Thin Films on Air-8211;Liquid Interfaces2024
- Author(s)
  S. Fujioka, M. Ishii, J. Takeya, K. Ariga, and Y. Yamashita
- Journal Title
  
  ACS Appl. Mater. Interfaces
  
  Volume: 17 Issue: 8 Pages: 12488-12494
- DOI
  10.1021/acsami.4c20510
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22H04959, KAKENHI-PROJECT-20H00392, KAKENHI-PROJECT-23K23428
[Journal Article] N-type molecular doping of a semicrystalline conjugated polymer through cation exchange2024
- Author(s)
  Y. Yamashita, S. Kohno, E. Longhi, S. Jhulki, S. Kumagai, S. Barlow, S. R. Marder, J. Takeya, and S. Watanabe
- Journal Title
  
  Commun. Mater.
  
  Volume: 5 Issue: 1 Pages: 79-85
- DOI
  10.1038/s43246-024-00507-2
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22H04959, KAKENHI-PROJECT-20H00387, KAKENHI-PROJECT-23K23428
[Journal Article] Doping of molecular semiconductors through proton-coupled electron transfer2023
- Author(s)
  Masaki Ishii, Yu Yamashita*, Shun Watanabe, Katsuhiko Ariga & Jun Takeya
- Journal Title
  
  Nature
  
  Volume: 622 Issue: 7982 Pages: 285-291
- DOI
  10.1038/s41586-023-06504-8
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-22H04959, KAKENHI-PROJECT-20H00387, KAKENHI-PROJECT-20H00392, KAKENHI-ORGANIZER-20H05862, KAKENHI-PROJECT-23K23428
[Journal Article] Unconventional route to control the chemical doping of molecularsemiconductors through proton-coupled electron transfer in aqueous solutions2022
- Author(s)
  Ishii Masaki、Yamashita Yu、Watanabe Shun、Ariga Katsuhiko、Takeya Jun
- Journal Title
  
  Research Square (preprint)
  
  Volume: -
- DOI
  10.21203/rs.3.rs-2011544/v1
- Open Access
- Data Source
  KAKENHI-PROJECT-23K23428
[Journal Article] Band mobility exceeding 10cm2V-1s-1 assessed by field-effect and chemical double doping in semicrystalline polymeric semiconductors2021
- Author(s)
  Ito Masato、Yamashita Yu、Mori Taizo、Ariga Katsuhiko、Takeya Jun、Watanabe Shun
- Journal Title
  
  Applied Physics Letters
  
  Volume: 119 Issue: 1 Pages: 013302-013302
- DOI
  10.1063/5.0052279
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H00387, KAKENHI-PROJECT-20K20562, KAKENHI-PROJECT-20K15358
[Journal Article] Highly air-stable, n-doped conjugated polymers achieved by dimeric organometallic dopants2021
- Author(s)
  Yamashita Yu、Jhulki Samik、Bhardwaj Dinesh、Longhi Elena、Kumagai Shohei、Watanabe Shun、Barlow Stephen、Marder Seth R.、Takeya Jun
- Journal Title
  
  Journal of Materials Chemistry C
  
  Volume: 9 Issue: 12 Pages: 4105-4111
- DOI
  10.1039/d0tc05931e
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K15358, KAKENHI-PROJECT-17H06123, KAKENHI-PROJECT-20H00387, KAKENHI-PROJECT-20K20562
[Journal Article] 縮退電子系を有する結晶性高分子半導体―分子とイオンと空隙でつくる金属プラスチック―2021
- Author(s)
  山下侑、竹谷純一、渡邉峻一郎
- Journal Title
  
  固体物理
  
  Volume: 56 Pages: 334-48
- NAID
  40022473297
- Data Source
  KAKENHI-PROJECT-20K15358
[Journal Article] Supramolecular cocrystals built through redox-triggered ion intercalation in π-conjugated polymers2021
- Author(s)
  Yamashita Yu、Tsurumi Junto、Kurosawa Tadanori、Ueji Kan、Tsuneda Yukina、Kohno Shinya、Kempe Hideto、Kumagai Shohei、Okamoto Toshihiro、Takeya Jun、Watanabe Shun
- Journal Title
  
  Communications Materials
  
  Volume: 2 Issue: 1 Pages: 45-45
- DOI
  10.1038/s43246-021-00148-9
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20K15358, KAKENHI-PROJECT-17H06123, KAKENHI-PROJECT-20H00387, KAKENHI-PROJECT-20K20562
[Journal Article] 分子とイオンと隙間でつくる金属高分子2020
- Author(s)
  山下侑、竹谷純一、渡邉峻一郎
- Journal Title
  
  応用物理
  
  Volume: 89 Pages: 594-597
- NAID
  130007925029
- Data Source
  KAKENHI-PROJECT-20K15358
[Journal Article] Controlled steric selectivity in molecular doping towards closest-packed supramolecular conductors2020
- Author(s)
  Kohno Shinya、Yamashita Yu、Kasuya Naotaka、Mikie Tsubasa、Osaka Itaru、Takimiya Kazuo、Takeya Jun、Watanabe Shun
- Journal Title
  
  Communications Materials
  
  Volume: 1 Issue: 1 Pages: 1-6
- DOI
  10.1038/s43246-020-00081-3
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20K20562, KAKENHI-PROJECT-20K15358, KAKENHI-PROJECT-20K22535
[Patent] 有機半導体材料の製造方法、半導体デバイスの製造方法、水溶液、ｐＨ測定方法、ｐＨ測定装置、及び、センサ素子2023
- Inventor(s)
  山下侑、石井政輝、有賀克彦、竹谷純一渡邉峻一郎
- Industrial Property Rights Holder
  物質・材料研究機構、東京大学
- Industrial Property Rights Type
  特許
- Filing Date
  2023
- Data Source
  KAKENHI-PROJECT-23K23428
[Patent] 有機半導体材料の製造方法、半導体デバイスの製造方法、水溶液、ｐＨ測定方法、ｐＨ測定装置、及び、センサ素子2022
- Inventor(s)
  山下侑、石井政輝、有賀克彦、竹谷純一、渡邉峻一郎
- Industrial Property Rights Holder
  物質・材料研究機構、東京大学
- Industrial Property Rights Type
  特許
- Filing Date
  2022
- Data Source
  KAKENHI-PROJECT-20K15358
[Presentation] 半導体高分子界面へのアニオン吸着が水系化学ドーピングに与える影響2025
- Author(s)
  金古梓吟、石井政輝、酒井健一、酒井秀樹、竹谷純一、有賀克彦、山下侑
- Organizer
  日本化学会第105春季年会
- Data Source
  KAKENHI-PROJECT-23K23428
[Presentation] Chemical doping of polymeric semiconductors for advanced printed electronics2024
- Author(s)
  Yu Yamashita
- Organizer
  Singapore International Chemistry Conference
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K23428
[Presentation] Control of chemical doping for advanced organic electronics2024
- Author(s)
  Yu Yamashita
- Organizer
  NTU-NIMS Joint Symposium 2024 Autumn
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K23428
[Presentation] 有機半導体への溶液プロセス化学ドーピング2024
- Author(s)
  山下侑
- Organizer
  第14回CSJ化学フェスタ2024
- Invited
- Data Source
  KAKENHI-PROJECT-23K23428
[Presentation] Stable and scalable chemical doping for advanced organic semiconductor devices2024
- Author(s)
  Yu Yamashita, Masaki Ishii, Nobutaka Osakabe, Takuma Ohashi, Stephen Barlow, Seth R. Marder, Shun Watanabe, Jun Takeya
- Organizer
  26th International Conference on Science and Technology of Synthetic Electronic Materials
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K23428
[Presentation] ポリマー半導体の水溶液を用いた化学ドーピングにおける溶存酸素とアニオン吸着の影響2024
- Author(s)
  金古梓吟、石井政輝、酒井健一、酒井秀樹、竹谷純一、有賀克彦、山下侑
- Organizer
  第85回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-23K23428
[Presentation] 大気安定性の高いn型化学ドーピングによる高分子半導体ダイオードの電子注入特性向上2024
- Author(s)
  山下侑、刑部永祥、田嶋陽子、Stephen Barlow、Seth Marder、渡邉峻一郎、竹谷純一
- Organizer
  日本化学会第104春季年会
- Data Source
  KAKENHI-PROJECT-23K23428
[Presentation] カチオン交換を用いたnドープ高分子半導体の結晶性・大気安定性制御2023
- Author(s)
  山下侑、河野真弥、熊谷翔平、Stephen Barlow、Seth R. Marder、竹谷純一、渡邉峻一郎
- Organizer
  第84回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-23K23428
[Presentation] 化学ドーピングされた有機半導体単結晶を用いた高精度な歪みセンサの開発2022
- Author(s)
  山下侑, 宇佐美由久, 野沢汎, 田嶋陽子, 渡邉峻一郎, 竹谷純一
- Organizer
  第83回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-23K23428
[Presentation] 表面ドーピングされた有機半導体単結晶による微小歪みセンシング2022
- Author(s)
  山下侑, 宇佐美由久, 田嶋陽子, 渡邉峻一郎, 竹谷純一
- Organizer
  日本物理学会2022年秋季大会
- Data Source
  KAKENHI-PROJECT-23K23428
[Presentation] Supramolecular cocrystals built through redox-triggered ion intercalation in lamellae of π-conjugated polymers2021
- Author(s)
  Yu Yamashita, Junto Tsurumi, Tadanori Kurosawa, Kan Ueji, Shinya Kohno, Shohei Kumagai, Toshihiro Okamoto, Jun Takeya, Shun Watanabe
- Organizer
  Material Research Meeting 2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K15358
[Presentation] 結晶性超分子構造を有する導電性高分子における高仕事関数と大気安定性の実現2021
- Author(s)
  山下侑
- Organizer
  第68回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-20K15358

1. 竹谷純一

# of Collaborated Projects: 0 results

# of Collaborated Products: 3 results
2. 渡邉峻一郎

# of Collaborated Projects: 0 results

# of Collaborated Products: 2 results

YAMASHITA Yu 山下 侑

Yamashita Yu 山下 侑

Research Projects

Research Products

Co-Researchers

Development of Organic Electronic Devices via Spatially Controlled Ion-Exchange DopingPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

High work function polymeric electrodes for Ohmic contact and efficient photoelectric conversionPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Journal Article] Circular Flow Alignment of Polymeric Semiconductor Thin Films on Air-8211;Liquid Interfaces2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] N-type molecular doping of a semicrystalline conjugated polymer through cation exchange2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Doping of molecular semiconductors through proton-coupled electron transfer2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Unconventional route to control the chemical doping of molecularsemiconductors through proton-coupled electron transfer in aqueous solutions2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Band mobility exceeding 10cm2V-1s-1 assessed by field-effect and chemical double doping in semicrystalline polymeric semiconductors2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Highly air-stable, n-doped conjugated polymers achieved by dimeric organometallic dopants2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] 縮退電子系を有する結晶性高分子半導体―分子とイオンと空隙でつくる金属プラスチック―2021

Author(s)

Journal Title

NAID

Data Source

[Journal Article] Supramolecular cocrystals built through redox-triggered ion intercalation in π-conjugated polymers2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] 分子とイオンと隙間でつくる金属高分子2020

Author(s)

Journal Title

NAID

Data Source

[Journal Article] Controlled steric selectivity in molecular doping towards closest-packed supramolecular conductors2020

Author(s)

Journal Title

DOI

Data Source

[Patent] 有機半導体材料の製造方法、半導体デバイスの製造方法、水溶液、ｐＨ測定方法、ｐＨ測定装置、及び、センサ素子2023

Inventor(s)

Industrial Property Rights Holder

Industrial Property Rights Type

Filing Date

Data Source

[Patent] 有機半導体材料の製造方法、半導体デバイスの製造方法、水溶液、ｐＨ測 定方法、ｐＨ測定装置、及び、センサ素子2022

Inventor(s)

Industrial Property Rights Holder

Industrial Property Rights Type

Filing Date

Data Source

[Presentation] 半導体高分子界面へのアニオン吸着が水系化学ドーピングに与える影響2025

YAMASHITA Yu 山下侑

Yamashita Yu 山下侑

[Patent] 有機半導体材料の製造方法、半導体デバイスの製造方法、水溶液、ｐＨ測定方法、ｐＨ測定装置、及び、センサ素子2022

[Presentation] ポリマー半導体の水溶液を用いた化学ドーピングにおける溶存酸素とアニオン吸着の影響2024

[Presentation] 大気安定性の高いn型化学ドーピングによる高分子半導体ダイオードの電子注入特性向上2024

[Presentation] 化学ドーピングされた有機半導体単結晶を用いた高精度な歪みセンサの開発2022