3D Conductive Area of Solution-Processed ZnO Layer and Transparent Flexible LED

• Project/Area Number: 15H04122
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Inorganic materials/Physical properties
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Matsushita Nobuhiro 東京工業大学, 物質理工学院, 准教授 (90229469)
• Co-Investigator(Kenkyū-buntansha): 我田 元 明治大学, 理工学部, 専任講師 (40633722)
• Research Collaborator: Hong Jeongsoo
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥16,250,000 (Direct Cost: ¥12,500,000、Indirect Cost: ¥3,750,000); Fiscal Year 2017: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2016: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000); Fiscal Year 2015: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
• Keywords: 酸化亜鉛薄膜 / 透明導電性 / 溶液作製 / ZnO膜 / 紫外線照射 / 溶液作製酸化亜鉛膜 / 導電領域パターニング / 導電性領域パターニング / 断面方向導電性評価 / ダイオード / 酸化亜鉛膜 / 導電性領域ﾊﾟﾀｰﾆﾝｸﾞ / パターニング

Outline of Final Research Achievements

Solution-processed ZnO films could exhibit transparent conductivity after UV irradiation. The irradiation of UV-A and UV(λ = 380 nm) only for 1 hour attained the conductivity. The transparent circuit was drawn by UV laser irradiation and the conductive are had 3 order lower resistivity than without irradiation area. The rectification property was obtained the ZnO films deposited on p-Si and p-GaN substrate. The Mn doped ZnO film exhibited the saturation magnetization of 1.68x10-2 emu/g.
It is valuable result that the transparent conductive magnetic ZnO film could be fabricated by solution process.

Research Products

• [Journal Article] Influence of Surface Morphology and Conductivity on Photocatalytic Performance of Solution-Processed Zinc Oxide Film (2017)
  • Author(s): Jeongsoo Hong, Nobuhiro Matsushita, Takashi Shirai, Kazuya Nakata, Chiaki Terashima, Akira Fujishima and Ken-ichi Katsumata
  • Journal Title: Chemistry-an Asian Journal Volume: 12[18] Issue: 18 Pages: 2480-2485
  • DOI: 10.1002/asia.201700807
  • Peer Reviewed
• [Journal Article] Comparative Study of Crystallographic and Electrical Properties of Zinc Oxide Films Fabricated by Dry and Wet Processes (2017)
  • Author(s): Jeongsoo Hong, Minjong Keum, Ken-Ichi Katsumata, Takashi Shirai, Nobuhiro Matsushita, and Kyunghwan Kim
  • Journal Title: Science of Advanced Materials Volume: 9 Issue: 9 Pages: 1678-1682
  • DOI: 10.1166/sam.2017.3176
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Low temperature Solution-Processed ZnO film on flexible substrate (2016)
  • Author(s): JeongSoo Hong, Hajime Wagata, Ken-ichi Katsumata, Nobuhiro Matsushita
  • Journal Title: Materials Science in Semiconductor Processing Volume: 47 Pages: 20-24
  • DOI: 10.1016/j.mssp.2016.02.010
  • Peer Reviewed
• [Journal Article] High-conductivity solution-processed ZnO films realized via UV irradiation and hydrogen treatment (2016)
  • Author(s): Jeongsoo Hong, Ken-ichi Katsumata, Nobuhiro Matsushita
  • Journal Title: Acta Materialia Volume: 103 Pages: 844-849
  • DOI: 10.1016/j.actamat.2015.11.013
  • Peer Reviewed
• [Journal Article] Fabrication of Al-Doped ZnO Film with High Conductivity Induced by Photocatalytic Activity (2016)
  • Author(s): Jeongsoo Hong, Ken-ichi Katsumata, Nobuhiro Matsushita
  • Journal Title: Journal of Electronic Materials Volume: 45[10] Issue: 10 Pages: 4875-4880
  • DOI: 10.1007/s11664-016-4751-7
  • Peer Reviewed
• [Journal Article] The Morphological Properties of Heterostructured Fe3O4 / ZnO Film by Aqueous Solution Process (2015)
  • Author(s): J. Hong, K. Katsumata, N. Matsushita
  • Journal Title: IEEE Transactions on Magnetics Volume: 52[5] Issue: 5 Pages: 2600105-2600105
  • DOI: 10.1109/tmag.2015.2513740
  • Peer Reviewed
• [Presentation] Solution-Processed Mn-doped Zinc Oxide Films with Magnetic-Transparent Properties (2018)
  • Author(s): Retno Miranti, Tetsuo Kishi, Tetsuji Yano, Nobuhiro Matsushita
  • Organizer: CEMS International Symposium on Supramolecular Chemistry & Functional Materials 2018 (CEMSupra 2018)
  • Int'l Joint Research
• [Presentation] Conductive area patterning on solution processed transparent ZnO films by UV irradiation (2017)
  • Author(s): Hwai En, Lin, Tetsuo Kishi, Tetsuji Yano and Nobuhiro Matsushita
  • Organizer: The Tenth International Conference on the Science and Technology for Advanced Ceramics (STAC-10)
  • Int'l Joint Research
• [Presentation] Direct conductive area patterning on solution-processed transparent zinc oxide (2017)
  • Author(s): Hwai En, Lin, Tetsuo Kishi, Tetsuji Yano and Nobuhiro Matsushita
  • Organizer: The 34th International Japan-Korea Seminar on Ceramics
  • Int'l Joint Research
• [Presentation] The UV laser conductive area patterning technique applied on solution-processed transparent ZnO film (2017)
  • Author(s): Hwai En, Lin, Tetsuo Kishi, Tetsuji Yano and Nobuhiro Matsushita
  • Organizer: The 7th conference of The Ceramic Society of Japan Kanto Branch for young researcher
  • Int'l Joint Research
• [Presentation] Solution-Processed Mn-doped Zinc Oxide Films Having Magnetic and Transparent-Conductive Properties (2017)
  • Author(s): Retno Miranti, Tetsuo Kishi, Tetsuji Yano, Nobuhiro Matsushita
  • Organizer: International Conference on Advanced Materials 2017 of IUMRS (IUMRS-ICAM2017)
  • Int'l Joint Research
• [Presentation] Enhanced Photocurrent Generation in Solution-Processed Zinc Oxide Rod Array by Incorporating Al3+ (2017)
  • Author(s): Retno Miranti, Tetsuo Kishi, Tetsuji Yano, Nobuhiro Matsushita
  • Organizer: The 2017 MRS Fall Meeting & Exhibit
  • Int'l Joint Research
• [Presentation] Fabrication and Structure-Control of Nano-materials on Titanium alloy surface for Biomedical Applications (2017)
  • Author(s): Nobuhiro Matsushita, Toshiyuki Ikoma, Kensuke Kuroda, Mituso Niinomi, Takeshi Wada, Hidemi Kato, Tetsuya Kishi, Tetsuji Yano
  • Organizer: The 7th Nanoscience and Nanotechnology Symposium (NNS)
  • Int'l Joint Research / Invited
• [Presentation] Solution-Processed ZnO Nano-Rod Array and Photocatalytic Properties (2017)
  • Author(s): Solution-Processed ZnO Nano-Rod Array and Photocatalytic Properties
  • Organizer: IUMRS-ICA 2017
  • Int'l Joint Research / Invited
• [Presentation] A Novel Solution Process for Depositing Mn doped Zinc Oxide Film on Nonseeded Substrate at Low Temperature (2016)
  • Author(s): Retno Miranti, Tetsuji Yano and Nobuhiro Matsushita
  • Organizer: MRS-ID Mtg.2016
  • Place of Presentation: Bandung Inst., Indonesia
  • Year and Date: 2016-10-24
  • Int'l Joint Research
• [Presentation] olution-processed Ferrite Layers at Temperature below 100ºC Applicable in Power and Signal Applications (2016)
  • Author(s): Nobuhiro Matsushita
  • Organizer: MRS-ID Mtg.2016
  • Place of Presentation: Bandung Inst., Indonesia
  • Year and Date: 2016-10-24
  • Int'l Joint Research / Invited
• [Presentation] 溶液作製した透明ZnO薄膜の紫外線照射による低抵抗化と応用 (2016)
  • Author(s): 米元謙太朗、岸哲生、矢野哲司、松下伸広
  • Organizer: 日本セラミックス協会 第29回秋季シンポジウム
  • Place of Presentation: 広島大学、東広島市
  • Year and Date: 2016-09-07
• [Presentation] 100℃以下の低温プロセスによる透明導電性ZnO膜の作製と応用 (2016)
  • Author(s): 米元謙太朗、岸哲生、矢野哲司、松下伸広
  • Organizer: 三大学合同無機材料合同研究会
  • Place of Presentation: 山梨大学、甲府市
• [Presentation] 可視光吸収ZnOナノロッドアレイの創製と光電流検出 (2016)
  • Author(s): 小林亮介、片柳雄大、岸哲生、矢野哲司、松下伸広
  • Organizer: 三大学合同無機材料合同研究会
  • Place of Presentation: 山梨大学、甲府市
• [Presentation] Solution-processed ZnO and their structure designs for various applications (2015)
  • Author(s): Nobuhiro Matsushita, K. Katsumata, H. Wagata, M. Yoshimura, K. Okada
  • Organizer: Ceramic and Advanced Materials for Energy and Environment 2015
  • Place of Presentation: Bangalore, India
  • Year and Date: 2015-12-14
  • Int'l Joint Research / Invited
• [Presentation] Influence of the UV irradiation on ZnO films deposited by Spin-spray method (2015)
  • Author(s): . Yonemoto , J. S. Hong , H. Wagata , K. Okada , N. Matsushita
  • Organizer: IUMRS-ICAM2015
  • Place of Presentation: Jeju, Korea
  • Year and Date: 2015-10-25
  • Int'l Joint Research
• [Presentation] Solution process to fabricate ZnO transparent conductive oxide film (2015)
  • Author(s): Yuuto Seino , Jeong Soo Hong , Ken-ich Katsumata , Nobuhiro Matsushita
  • Organizer: STAC9
  • Place of Presentation: つくば
  • Year and Date: 2015-10-19
  • Int'l Joint Research
• [Presentation] インジウムフリー透明導電膜を作成する新規水溶液プロセスの開発 (2015)
  • Author(s): 清野裕斗 , 勝又健一 , 松下伸広
  • Organizer: 日本セラミックス協会第２８回秋季シンポジウム
  • Place of Presentation: 富山市
  • Year and Date: 2015-09-16
• [Presentation] 新規溶液プロセスによる酸化亜鉛透明膜の低温作製 (2015)
  • Author(s): 清野裕斗 , 勝又健一 , 松下伸広
  • Organizer: 日本セラミックス協会第31回関東支部
  • Place of Presentation: 長野
  • Year and Date: 2015-09-07
• [Remarks] 東工大 矢野-松下研究室
  • URL: http://intelligent-materials.jp/