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Fabrication of CNT/Cu thin films by UV irradiation of precursor films involving a Cu(II) complex at room temperature

Research Project

Project/Area Number 20K05270
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 28030:Nanomaterials-related
Research InstitutionKogakuin University

Principal Investigator

Nagai Hiroki  工学院大学, 先進工学部, 准教授 (20559942)

Co-Investigator(Kenkyū-buntansha) 佐藤 光史  工学院大学, 先進工学部, 教授 (10154105)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords分子プレカーサー法 / 薄膜 / 銅 / 金属錯体 / 光転換 / 単相カーボンナノチューブ / 銅錯体 / 錯体還元法 / プレカーサー水溶液 / 還元剤 / 銅膜 / 光照射 / 常温 / 光化学反応 / 高機能表面創成 / カーボンナノチューブ
Outline of Research at the Start

本研究期間内においては,次のように実証研究を実施する。I. 配位子が異なる銅錯体を含むプレカーサー溶液を調製し,それら錯体の光化学反応による薄膜形成,II. その反応メカニズムの考察と形成した銅膜の物性評価と最適化,III. CNT含有銅プレカーサー溶液の調製と応用の3段階で進める。

Outline of Final Research Achievements

A copper precursor solution was prepared by designing the ligands of the copper complexes in ethanol. The precursor film was fabricated by applying the solution to a glass substrate. The 254 nm wavelength of UV light with 4 mW cm^-2 intensity was irradiated to the precursor films for 24 h in a clean bench at a temperature of 20-30°C and a humidity of 20-40%. The XRD patterns of the obtained films showed a single copper phase. Forming of copper films was successfully obtained by optical absorption due to the CT absorption band of the complex. However, the resistance of the formed copper film was more than 500 MΩ, due to the presence of organic residues in the film.

Academic Significance and Societal Importance of the Research Achievements

通常は熱により錯体から金属や金属酸化物に転換する分子プレカーサー法を錯体のCT吸収帯による光吸収で銅膜形成が可能であることを実証した。プレカーサー膜への紫外線照射による銅膜形成は,これまでの熱処理の必要性を回避し,分子レベルで制御可能な化学的加工法を実証した。光化学反応の分野においても重要な結果であると考える。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (11 results)

All 2022 2021 2020 Other

All Journal Article (7 results) (of which Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (3 results) (of which Int'l Joint Research: 3 results) Remarks (1 results)

  • [Journal Article] Dependence of SARS-CoV-2 (COVID-19) inactivation ability on the crystallinity level of transparent Cu<sub>2</sub>O thin films2022

    • Author(s)
      Wu Hsiang-Jung、Douura Takashi、Kumagai Kyoko、Nagai Hiroki、Kawakami Hiroshi、Nakayama Emi E.、Shioda Tatsuo、Sato Mitsunobu
    • Journal Title

      Functional Materials Letters

      Volume: 15 Issue: 07n08 Pages: 2251053-2251053

    • DOI

      10.1142/s1793604722510535

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Coppers film fabrication on glass substrate by complex reduction method for rapid inactivation of SARS-CoV-2 (COVID-19)2022

    • Author(s)
      Wu Hsiang-Jung、Nagai Hiroki、Douura Takashi、Ishii Masayuki、Kawakami Hiroshi、Nakayama Emi E.、Shioda Tatsuo、Sato Mitsunobu
    • Journal Title

      Functional Materials Letters

      Volume: 15 Issue: 04 Pages: 2251031-2251031

    • DOI

      10.1142/s1793604722510316

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Deep-Ultraviolet Transparent Conductive MWCNT/SiO2 Composite Thin Film Fabricated by UV Irradiation at Ambient Temperature onto Spin-Coated Molecular Precursor Film2021

    • Author(s)
      Nagai Hiroki、Ogawa Naoki、Sato Mitsunobu
    • Journal Title

      Nanomaterials

      Volume: 11 Issue: 5 Pages: 1348-1348

    • DOI

      10.3390/nano11051348

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Facile Fabrication of Single-Walled Carbon Nanotube/Anatase Composite Thin Film on Quartz Glass Substrate for Translucent Conductive Photoelectrode2021

    • Author(s)
      Suwazono Yutaka、Murayoshi Takuro、Nagai Hiroki、Sato Mitsunobu
    • Journal Title

      Nanomaterials

      Volume: 11 Issue: 12 Pages: 3352-3352

    • DOI

      10.3390/nano11123352

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fabrication of Transparent and Conductive SWCNT/SiO2 Composite Thin-Film by Photo-Irradiation of Molecular Precursor Films2021

    • Author(s)
      Ogawa Naoki、Nagai Hiroki、Kudoh Yukihiro、Onuma Takeyoshi、Murayama Taichi、Nojima Akinobu、Sato Mitsunobu
    • Journal Title

      Nanomaterials

      Volume: 11 Issue: 12 Pages: 3404-3404

    • DOI

      10.3390/nano11123404

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Selective formation of cubic or tetragonal zirconia thin films of transparent, with no use of metal ion stabilizer by heating molecular precursor films under mild conditions2021

    • Author(s)
      Shafudah Natangue Heita、Nagai Hiroki、Sato Mitsunobu
    • Journal Title

      Functional Materials Letters

      Volume: 14 Issue: 02 Pages: 2151012-2151012

    • DOI

      10.1142/s1793604721510127

    • Related Report
      2020 Research-status Report
  • [Journal Article] Hydrophilic Titania Thin Films from a Molecular Precursor Film Formed via Electrospray Deposition on a Quartz Glass Substrate Precoated with Carbon Nanotubes2020

    • Author(s)
      Heita Shafudah Natangue、Nagai Hiroki、Suwazono Yutaka、Ozawa Ryuhei、Kudoh Yukihiro、Takahashi Taiju、Onuma Takeyoshi、Sato Mitsunobu
    • Journal Title

      Coatings

      Volume: 10 Issue: 11 Pages: 1050-1050

    • DOI

      10.3390/coatings10111050

    • Related Report
      2020 Research-status Report
  • [Presentation] Humidity dependency of the ionic conductivity of Li1+xAlxTi2-x(PO4)3 transparent thin films fabricated by molecular precursor method2021

    • Author(s)
      Kazuma Aochi, H. Nagai, and M. Sato
    • Organizer
      International Symposium on Advanced Technology
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Anatase Thin-Film Fabrication by Novel Precursor Solution Involving Stable Trisoxalato Complex of Ti (IV) without O2^2- Coordination2021

    • Author(s)
      Takuro Murayoshi, H. Nagai, and M. Sato
    • Organizer
      International Symposium on Advanced Technology
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Fabrication of visible-light responsive WO3 Thin Film via Molecular Precursor Method2021

    • Author(s)
      T. Murayama, H. Nagai, and M. Sato
    • Organizer
      International Symposium on Advanced Technology
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Remarks] 研究者情報

    • URL

      https://er-web.sc.kogakuin.ac.jp/Profiles/13/0001264/profile.html

    • Related Report
      2021 Research-status Report

URL: 

Published: 2020-04-28   Modified: 2024-01-30  

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