原子分解能を有する分子認識ナノワイヤ界面及び新規分子識別センシングデバイスの創製

• Project/Area Number: 19J12834
• Research Category: Grant-in-Aid for JSPS Fellows
• Allocation Type: Single-year Grants
• Section: 国内
• Review Section: Basic Section 28030:Nanomaterials-related
• Research Institution: Kyushu University
• Principal Investigator: ZHAO Xixi 九州大学, 総合理工学府, 特別研究員(DC2)
• Project Period (FY): 2019-04-25 – 2021-03-31
• Project Status: Completed (Fiscal Year 2020)
• Budget Amount: ¥1,700,000 (Direct Cost: ¥1,700,000); Fiscal Year 2020: ¥800,000 (Direct Cost: ¥800,000); Fiscal Year 2019: ¥900,000 (Direct Cost: ¥900,000)
• Keywords: Zinc Oxide nanowire / Monodispersedly sized / Random sized seed layer / Molucular recognition / core-shell structure / molecule fingerprint / molecule selectivity / Random sized seed

Outline of Research at the Start

1.Molecular Adsorption on Nanowires
2.Atomically Resolved Molecular Recognition Surface
3.Electrical Discrimination of Nonanal by On-Chip Selector-Sensor Device

Outline of Annual Research Achievements

i)We demonstrate the facile, rational synthesis of monodispersedly sized ZnO nanowires from randomly sized seeds by hydrothermal growth. By
precisely controlling the sharp tip formation and the nucleation, our method substantially narrows the distribution of ZnO nanowire diameters
from σ = 13.5 nm down to σ = 1.3 nm and controls their diameter , even initiating from randomly sized seeds.
ii)We artificially synthesis of molecular recognition nanowire surface via ALD technique The ZnO/TiO2 nanowires fabricated with nonanal template
exhibited much higher molecule collection ability compared with the ones without template. Furthermore, we found that the ZnO/TiO2 nanowires with template
nonanal shows selectively to target nonanal among mixed linear aldehyde molecules。

Research Progress Status

令和2年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和2年度が最終年度であるため、記入しない。

Research Products

• [Journal Article] Face-selective tungstate ions drive zinc oxide nanowire growth direction and dopant incorporation (2020)
  • Author(s): Liu J., Nagashima K,, Yamashita H., Mizukami W,, Uzuhashi J,, Hosomi T., Kanai m., Zhao X,, Miura Yoshinori, Zhang Guozhu, Takahashi Tsunaki, Suzuki Masaru, Sakai Daiki, Samransuksamer Benjarong, He Yong, Ohkubo Tadakatsu, Yasui Takao, Aoki Yuriko, Ho Johnny C., Baba Yoshinobu, Yanagida Takeshi
  • Journal Title: Communications Materials Volume: 1 Issue: 1 Pages: 58-58
  • DOI: 10.1038/s43246-020-00063-5
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Synthesis of Monodispersedly Sized ZnO Nanowires from Randomly Sized Seeds (2019)
  • Author(s): Zhao Xixi、Nagashima Kazuki、Zhang Guozhu、Hosomi Takuro、Yoshida Hideto、Akihiro Yuya、Kanai Masaki、Mizukami Wataru、Zhu Zetao、Takahashi Tsunaki、Suzuki Masaru、Samransuksamer Benjarong、Meng Gang、Yasui Takao、Aoki Yuriko、Baba Yoshinobu、Yanagida Takeshi
  • Journal Title: Nano Letters Volume: 20 Issue: 1 Pages: 599-605
  • DOI: 10.1021/acs.nanolett.9b04367
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Substantial Narrowing on the Width of “Concentration Window” of Hydrothermal ZnO Nanowires via Ammonia Addition (2019)
  • Author(s): Sakai Daiki、Nagashima Kazuki、Yoshida Hideto、Kanai Masaki、He Yong、Zhang Guozhu、Zhao Xixi、Takahashi Tsunaki、Yasui Takao、Hosomi Takuro、Uchida Yuki、Takeda Seiji、Baba Yoshinobu、Yanagida Takeshi
  • Journal Title: Scientific Reports Volume: 9 Issue: 1 Pages: 14160-14160
  • DOI: 10.1038/s41598-019-50641-y
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] Post-seed Engineering for Synthesizing Monodispersedly Sized ZnO Nanowires (2019)
  • Author(s): Xixi Zhao
  • Organizer: International School and Symposium on Nanoscale Transport and phoTonics 2019,
  • Int'l Joint Research