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山下 侑

山下 侑 (YAMASHITA, Yu) 0000-0001-7966-3197

Address
305-0044 茨城県つくば市並木1-1 [アクセス]

[論文] | [書籍] | [会議録] | [口頭発表] | [その他の文献] | [公開特許出願]

論文 TSV

2025
  1. Yoshihisa Usami, Yu Yamashita, Tomohiro Murata, Takafumi Matsumoto, Masataka Ito, Shun Watanabe, Jun Takeya. Scalable fabrication of precise flexible strain sensors using organic semiconductor single crystals. Science and Technology of Advanced Materials. 26 [1] (2025) 2451020 10.1080/14686996.2025.2451020 Open Access
  2. Katsuhiko Ariga, Shuta Fujioka, Yu Yamashita. Dynamic Flow-Assisted Nanoarchitectonics. ACS Applied Materials & Interfaces. 17 [17] (2025) 24778-24806 10.1021/acsami.5c03820 Open Access
  3. Shuta Fujioka, Masaki Ishii, Jun Takeya, Katsuhiko Ariga, Yu Yamashita. Circular Flow Alignment of Polymeric Semiconductor Thin Films on Air–Liquid Interfaces. ACS Applied Materials & Interfaces. 17 [8] (2025) 12488-12494 10.1021/acsami.4c20510 Open Access
2024
  1. Yu Yamashita, Shinya Kohno, Elena Longhi, Samik Jhulki, Shohei Kumagai, Stephen Barlow, Seth R. Marder, Jun Takeya, Shun Watanabe. N-type molecular doping of a semicrystalline conjugated polymer through cation exchange. Communications Materials. 5 [1] (2024) 79 10.1038/s43246-024-00507-2 Open Access
  2. Masaki Ishii, Yuto Nakai, Shion Kaneko, Kohei Tanaka, Yu Yamashita, Kenichi Sakai, Hideki Sakai, Katsuhiko Ariga, Masaaki Akamatsu. Mechanoelectrical Transduction through Anion Recognition with Naphthalenediimide Monolayers at the Air–Water Interface. Langmuir. 40 [51] (2024) 27040-27048 10.1021/acs.langmuir.4c03957
  3. Yu Yamashita, Harumi Hayakawa, Pushi Wang, Tatsuyuki Makita, Shohei Kumagai, Shun Watanabe, Jun Takeya. Ion sensors based on organic semiconductors acting as quasi-reference electrodes. Proceedings of the National Academy of Sciences. 121 [40] (2024) e2405933121 10.1073/pnas.2405933121 Open Access
  4. Zhenyun Xiao, Masaki Ishii, Jun Takeya, Katsuhiko Ariga, Yu Yamashita. Chemical doping of a semicrystalline polymeric semiconductor realizing high stability and work function. Journal of Materials Chemistry C. 12 [33] (2024) 12739-12746 10.1039/d4tc01406e
  5. Tadanori Kurosawa, Yu Yamashita, Yuki Kobayashi, Craig P. Yu, Shohei Kumagai, Tsubasa Mikie, Itaru Osaka, Shun Watanabe, Jun Takeya, Toshihiro Okamoto. Employment of Alkoxy Sidechains in Semicrystalline Semiconducting Polymers for Ambient-Stable p-Doped Conjugated Polymers. Macromolecules. 57 [1] (2024) 328-338 10.1021/acs.macromol.3c00211
2023
  1. Masaki Ishii, Yu Yamashita, Shun Watanabe, Katsuhiko Ariga, Jun Takeya. Doping of molecular semiconductors through proton-coupled electron transfer. Nature. 622 [7982] (2023) 285-291 10.1038/s41586-023-06504-8
  2. Taehyun Won, Shohei Kumagai, Naotaka Kasuya, Yu Yamashita, Shun Watanabe, Toshihiro Okamoto, Jun Takeya. Individual and synergetic charge transport properties at the solid and electrolyte interfaces of a single ultrathin single crystal of organic semiconductors. Physical Chemistry Chemical Physics. 25 [20] (2023) 14496-14501 10.1039/d3cp00782k
2022
  1. Akchheta Karki, Yu Yamashita, Shangzhi Chen, Tadanori Kurosawa, Jun Takeya, Vallery Stanishev, Vanya Darakchieva, Shun Watanabe, Magnus P. Jonsson. Doped semiconducting polymer nanoantennas for tunable organic plasmonics. Communications Materials. 3 [1] (2022) 48 10.1038/s43246-022-00268-w Open Access
  2. Kazuyoshi Watanabe, Naoki Miura, Hiroaki Taguchi, Takeshi Komatsu, Hideyuki Nosaka, Toshihiro Okamoto, Yu Yamashita, Shun Watanabe, Jun Takeya. Improvement of contact resistance at carbon electrode/organic semiconductor interfaces through chemical doping. Applied Physics Express. 15 [10] (2022) 101005 10.35848/1882-0786/ac92c0 Open Access
  3. Masato Ito, Yu Yamashita, Taizo Mori, Masaaki Chiba, Takayuki Futae, Jun Takeya, Shun Watanabe, Katsuhiko Ariga. Hyper 100 °C Langmuir–Blodgett (Langmuir–Schaefer) Technique for Organized Ultrathin Film of Polymeric Semiconductors. Langmuir. 38 [17] (2022) 5237-5247 10.1021/acs.langmuir.1c02596
2021
  1. Yu Yamashita, Junto Tsurumi, Tadanori Kurosawa, Kan Ueji, Yukina Tsuneda, Shinya Kohno, Hideto Kempe, Shohei Kumagai, Toshihiro Okamoto, Jun Takeya, Shun Watanabe. Supramolecular cocrystals built through redox-triggered ion intercalation in π-conjugated polymers. Communications Materials. 2 [1] (2021) 45 10.1038/s43246-021-00148-9 Open Access
  2. Tadanori Kurosawa, Toshihiro Okamoto, Yu Yamashita, Shohei Kumagai, Shun Watanabe, Jun Takeya. Strong and Atmospherically Stable Dicationic Oxidative Dopant. Advanced Science. 8 [24] (2021) 2101998 10.1002/advs.202101998 Open Access
  3. Masato Ito, Yu Yamashita, Taizo Mori, Katsuhiko Ariga, Jun Takeya, Shun Watanabe. Band mobility exceeding 10 cm2 V−1 s−1 assessed by field-effect and chemical double doping in semicrystalline polymeric semiconductors. Applied Physics Letters. 119 [1] (2021) 013302 10.1063/5.0052279
  4. Yu Yamashita, Samik Jhulki, Dinesh Bhardwaj, Elena Longhi, Shohei Kumagai, Shun Watanabe, Stephen Barlow, Seth R. Marder, Jun Takeya. Highly air-stable, n-doped conjugated polymers achieved by dimeric organometallic dopants. Journal of Materials Chemistry C. 9 [12] (2021) 4105-4111 10.1039/d0tc05931e
  5. Shun Watanabe, Ryohei Hakamatani, Keita Yaegashi, Yu Yamashita, Han Nozawa, Mari Sasaki, Shohei Kumagai, Toshihiro Okamoto, Cindy G. Tang, Lay‐Lay Chua, Peter K. H. Ho, Jun Takeya. Surface Doping of Organic Single‐Crystal Semiconductors to Produce Strain‐Sensitive Conductive Nanosheets. Advanced Science. 8 [3] (2021) 2002065 10.1002/advs.202002065 Open Access
2020
  1. Masato Ito, Yu Yamashita, Yukina Tsuneda, Taizo Mori, Jun Takeya, Shun Watanabe, Katsuhiko Ariga. 100 °C-Langmuir–Blodgett Method for Fabricating Highly Oriented, Ultrathin Films of Polymeric Semiconductors. ACS Applied Materials & Interfaces. 12 [50] (2020) 56522-56529 10.1021/acsami.0c18349
  2. Shinya Kohno, Yu Yamashita, Naotaka Kasuya, Tsubasa Mikie, Itaru Osaka, Kazuo Takimiya, Jun Takeya, Shun Watanabe. Controlled steric selectivity in molecular doping towards closest-packed supramolecular conductors. Communications Materials. 1 [1] (2020) 79 10.1038/s43246-020-00081-3 Open Access
2019
  1. Yu Yamashita, Junto Tsurumi, Masahiro Ohno, Ryo Fujimoto, Shohei Kumagai, Tadanori Kurosawa, Toshihiro Okamoto, Jun Takeya, Shun Watanabe. Efficient molecular doping of polymeric semiconductors driven by anion exchange. Nature. 572 [7771] (2019) 634-638 10.1038/s41586-019-1504-9

書籍 TSV

会議録 TSV

口頭発表 TSV

2024
  1. YAMASHITA, Yu. Chemical doping of polymeric semiconductors for advanced printed electronics. 12th Singapore International Chemistry Conference. 2024 招待講演
  2. YAMASHITA, Yu. Control of chemical doping for advanced organic electronics. NTU-NIMS Joint Symposium 2024 Autumn. 2024 招待講演
  3. 山下 侑. 有機半導体への溶液プロセス化学ドーピング. 第14回CSJ化学フェスタ2024. 2024 招待講演
  4. YAMASHITA, Yu, 石井 政輝, 刑部 永祥, OHASHI, Takuma, Stephen Barlow, Seth R. Marder, Shun Watanabe, ARIGA, Katsuhiko, TAKEYA, Junichi. Stable and scalable chemical doping for advanced organic semiconductor devices. 26th International Conference on Science and Technology of Synthetic Electronic Materials. 2024 招待講演
  5. YAMASHITA, Yu, 刑部永祥, 田嶋陽子, Stephen Barlow, Seth Marder, 渡邉 峻一郎, TAKEYA, Junichi. Highly air-stable n-type chemical doping improving electron injection properties in polymeric semiconductor diodes. 日本化学会 第104春季年会 (2024). 2024
2023
  1. 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. 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. 第84回応用物理学会秋季学術講演会. 2023
2022
  1. 山下 侑, 宇佐美由久, 野沢汎, 田嶋陽子, 渡邉峻一郎, 竹谷 純一. 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年 第83回応用物理学会秋季学術講演会. 2022
  2. 山下 侑, 宇佐美由久, 田嶋陽子, 渡邉峻一郎, 竹谷 純一. 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. 日本物理学会2022年秋季大会. 2022
2021
  1. YAMASHITA, Yu, TSURUMI, Junto, Tadanori Kurosawa, UEJI, Kan, Shinya Kohno, Shohei Kumagai, Toshihiro Okamoto, TAKEYA, Junichi, Shun Watanabe. Supramolecular cocrystals built through redox-triggered ion intercalation in lamellae of π-conjugated polymers. Material Research Meeting 2021. 2021
  2. 山下 侑, 鶴見 淳人, 河野真弥, 黒澤忠法, 岡本敏宏, 渡邉峻一郎, 竹谷 純一. 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年 第68回応用物理学会春季学術講演会. 2021

その他の文献 TSV

2022
  1. 伊藤雅人, 山下 侑, 竹谷 純一, 渡邉峻一郎, 有賀 克彦, 二江隆之. 液面を用いた超高温・大面積ナノ薄膜製造技術. コンバーテック. 592 [50] (2022) 42-46
2021
  1. 山下 侑, 竹谷 純一, 渡邉俊一郎. 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―. 固体物理. (2021) 33-48
2020
  1. 山下 侑, 竹谷 純一, 渡邉 峻一郎. 分子とイオンと隙間でつくる金属高分子. Oyo Buturi. (2020) 594-597 10.11470/oubutsu.89.10_594

公開特許出願 TSV

  1. 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)

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