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Development of Quantum Dot LED with plasmonic metal nanostructures

Research Project

Project/Area Number 20K05441
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 32020:Functional solid state chemistry-related
Research InstitutionKitami Institute of Technology

Principal Investigator

Kiba Takayuki  北見工業大学, 工学部, 准教授 (40567236)

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: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywordsプラズモン / 発光増幅 / 有機EL / 量子ドット / 局在表面プラズモン / 金属ナノ構造 / ナノスフィアリソグラフィ / ナノ共振器 / マイクロキャビティ / OLED / 発光デバイス
Outline of Research at the Start

量子ドットLEDは、ディスプレイ用途として需要の拡大が見込まれ、さらなる高効率化の要請がある。本研究の目的は、金属ナノ構造の局在表面プラズモンと発光材料間におけるエネルギーフローの解明と、発光増幅機構の理解の元でのデバイス設計によるQLEDの発光効率改善である。そのために、金属ナノ構造を組み込んだQLED素子を試作し、電流注入を阻害せずに発光増幅効果が維持・発現する構造最適化を行う。また、時間分解PLおよびEL測定により、金属ナノ構造/QLED中において発光増幅に関与する各過程をリアルタイム計測し、その機構を明らかにすることで、金属ナノ構造のLSPによる発光増幅効果の有用性・汎用性を実証する。

Outline of Final Research Achievements

The purpose of this study is to improve emission efficiency by utilizing the emission enhancement effect of localized surface plasmon (LSP) of metallic nanostructures incorporated in light-emitting devices. For this purpose, we have investigated metal nanostructures suitable for emission materials with low quantum efficiency, confirmed the luminescence amplification effect by time-resolved PL measurements, and fabricated metal nanostructures in the devices. We fabricated nanostructures by annealing thin metal films and metal nanomesh structures by nanosphere lithography, and confirmed that the LSP resonance wavelengths can be controlled within the visible range and the ability to enhance emission in combination with light-emitting materials. The effectiveness of surface plasmons generated in metal/dielectric multilayered thin films as well as nanostructures was also confirmed.

Academic Significance and Societal Importance of the Research Achievements

金属ナノ構造の作製・評価や発光材料との組み合わせによる発光増幅現象の観測・機構解明、および金属/誘電体複合薄膜の発光デバイスへの応用を進めた。それに加え電磁界シミュレーションによる解析から、金属ナノ構造や複合薄膜の中に生じるプラズモンモードとの対応関係を明らかにした上で、発光増幅の機構についての理解が進んだ。得られた知見を基に、発光デバイス、特に電極構造のデザインを最適化することが可能となる。これにより近年需要が大きく広がっているディスプレイ用途の有機EL素子等の省電力化を図ることができる。

Report

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

    (32 results)

All 2022 2021 2020 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (27 results) (of which Int'l Joint Research: 16 results) Remarks (3 results)

  • [Journal Article] Optical characterization and emission enhancement property of Ag nanomesh structure fabricated by nanosphere lithography2022

    • Author(s)
      M. Ugajin, S. Park, T. Kiba, M. Kawamura, Y. Abe, J. Takayama, S. Hiura, A. Murayama
    • Journal Title

      Surface and Coatings Technology

      Volume: 435 Pages: 128258-128258

    • DOI

      10.1016/j.surfcoat.2022.128258

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] CaF2/ZnS Multilayered Films on Top-Emission Organic Light-Emitting Diode for Improving Color Purity and Moderation of Dark-Spot Formation2022

    • Author(s)
      N. Satoh, T. Tanno, T. Kitabayashi, T. Kiba, M. Kawamura, Y. Abe
    • Journal Title

      ACS Omega

      Volume: - Issue: 21 Pages: 17861-17867

    • DOI

      10.1021/acsomega.2c01128

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Spectral modification of electroluminescence in microcavity OLEDs coupled with metal/dielectric/metal multilayered anode2022

    • Author(s)
      Yuto Masuda, Masashi Ohara, Takayuki Kiba, Midori Kawamura, Yoshio Abe
    • Organizer
      The 22nd International Vacuum Congress (IVC-22)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Emission enhancement of the Alq3 in the presence of Ag nanotriangles and nanohemispheres fabricated by nanosphere lithography2022

    • Author(s)
      Atsushi Furumoto, Takayuki Kiba, Midori Kawamura, Yoshio Abe
    • Organizer
      The 22nd International Vacuum Congress (IVC-22)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication and Characterization of Metal/Dielectric/Metal Nanocavity by Vacuum Thermal Evaporation and Metal Dewetting2022

    • Author(s)
      Yusuke Takahashi, Takayuki Kiba, Midori Kawamura, Yoshio Abe
    • Organizer
      The 22nd International Vacuum Congress (IVC-22)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Characterization of CaF2/ZnS multilayered films on top-emitting OLED - its optical and protective performance and flexibility2022

    • Author(s)
      Tsubasa Tanno, Naoya Satoh, Takayuki Kiba, Midori Kawamura, Yoshio Abe
    • Organizer
      The 22nd International Vacuum Congress (IVC-22)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] アニール処理による金属/誘電体/金属ナノ光共振器構造の作製2022

    • Author(s)
      高橋 優介、木場 隆之、川村 みどり、阿部 良夫
    • Organizer
      第83回応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Ag/ZnS/Ag陽極を用いたOLEDにおけるプラズモン-マイクロキャビティモード間の結合に基づく発光波長制御2022

    • Author(s)
      増田 侑杜、大原 将、木場 隆之、川村 みどり、阿部 良夫
    • Organizer
      第83回応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Ag/ZnS/Ag構造を陽極として利用したOLEDの性能向上2022

    • Author(s)
      増田 侑杜、大原 将、木場 隆之、川村 みどり、阿部 良夫
    • Organizer
      2022年 第69回応用物理学会春季学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] Emission Enhancement of Tris(8-hydroxyquinolinato)aluminum with Ag Nanomesh Structure2021

    • Author(s)
      M. Ugajin, S. Park, T. Kiba, M. Kawamura, Y. Abe, J. Takayama, S. Hiura, A. Murayama
    • Organizer
      NANOSMAT-Asia 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Device Protection Performance of CaF2/ZnS Multilayer Films formed on Inverted Structure OLED Devices2021

    • Author(s)
      N. Satoh, T. Kiba, M. Kawamura, Y. Abe
    • Organizer
      NANOSMAT-Asia 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effect of Morphological Change in Ag Nanostructures on Plasmonic Emission Enhancement of Organic Emitter2021

    • Author(s)
      A. Furumoto, T. Kiba, M. Kawamura, Y. Abe
    • Organizer
      International Thin Films Conference (TACT2021)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Time-resolved Photoluminescence Study of Alq3 in the presence of Ag Nanomesh Structure2021

    • Author(s)
      M. Ugajin, S. Park, T. Kiba, M. Kawamura, Y. Abe, J. Takayama, S. Hiura, A. Murayama
    • Organizer
      International Thin Films Conference (TACT2021)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Fabrication and Characterization of CaF2/ZnS Distributed Bragg Reflector (DBR) on a Flexible Substrate2021

    • Author(s)
      T. Tanno, T. Kiba, M. Kawamura, Y. Abe
    • Organizer
      International Thin Films Conference (TACT2021)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Fabrication and Characterization of Blue OLED with Ag thin-film and Ag/ZnS/Ag Multilayered Electrodes2021

    • Author(s)
      N. Satoh, T. Kiba, M. Kawamura, Y. Abe
    • Organizer
      International Thin Films Conference (TACT2021)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] CaF2/ZnS分布ブラッグ反射鏡(DBR)のフレキシブル基板上への作製と特性評価2021

    • Author(s)
      丹野 翼、木場 隆之、川村 みどり、阿部 良夫
    • Organizer
      2021年 第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] Agナノ構造の形態が有機発光体のプラズモン発光増幅へ与える影響2021

    • Author(s)
      古本 淳士、木場 隆之、川村 みどり、阿部 良夫
    • Organizer
      2021年 第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] Agナノメッシュ構造による有機発光材料の発光増強2021

    • Author(s)
      宇賀神 舞、朴 昭暎、木場 隆之、川村 みどり、阿部 良夫、髙山 純一、樋浦 諭志、村山 明宏
    • Organizer
      2021年 第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] Ag薄膜およびAg/ZnS/Ag積層構造の青色OLEDへの電極応用2021

    • Author(s)
      佐藤 修也、木場 隆之、川村 みどり、阿部 良夫
    • Organizer
      2021年 第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] Ag/ZnS/Ag積層膜のOLED陽極としての応用とその波長選択性2021

    • Author(s)
      大原 将、木場隆之、川村みどり、阿部良夫、金 敬鎬
    • Organizer
      第56回応用物理学会北海道支部・第17回日本光学会北海道支部合同学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] Control of the localized surface plasmon resonance of Ag nanoparticles by changing its size and morphology2020

    • Author(s)
      Takayuki Kiba, Kazuaki Masui, Yuuki Inomata, Midori Kawamura, Yoshio Abe, Kyung Ho Kim
    • Organizer
      18th International Conference on Thin Films & 18th Joint Vacuum Conference
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Fabrication and optical characterization of Al nanomesh structure by nanosphere lithography2020

    • Author(s)
      Mai Ugajin, Takayuki Kiba, Midori Kawamura, Yoshio Abe, Kyung Ho Kim, Yafeng Chen, Junichi Takayama, Satoshi Hiura, Akihiro Murayama
    • Organizer
      18th International Conference on Thin Films & 18th Joint Vacuum Conference
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Fabrication and characterization of CaF2/ZnS multilayered film for improving OLED performance2020

    • Author(s)
      Naoya Satoh, Takuya Kitabayashi, Takayuki Kiba, Midori Kawamura, Yoshio Abe, Kyung Ho Kim
    • Organizer
      18th International Conference on Thin Films & 18th Joint Vacuum Conference
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Optical characterization of metal nanomesh structure for wavelength selective electrode fabricated by nanosphere lithography2020

    • Author(s)
      Mai Ugajin, Takayuki Kiba, Midori Kawamura, Yoshio Abe, Kyung Ho Kim, Yafeng Chen, Junichi Takayama, Satoshi Hiura, Akihiro Murayama
    • Organizer
      14th International Conference of Surfaces, Coatings and Nanostructured Materials (Nanosmat 2020)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Spectrally narrowed electroluminescence from inverted top-emission OLED with a distributed Bragg reflector2020

    • Author(s)
      Naoya Satoh, Takuya Kitabayashi, Takayuki Kiba, Midori Kawamura, Yoshio Abe, Kyung Ho Kim
    • Organizer
      14th International Conference of Surfaces, Coatings and Nanostructured Materials (Nanosmat 2020)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Ag/ZnS/Ag multilayered films as wavelength-selective electrode for organic light-emitting diodes2020

    • Author(s)
      Masashi Ohara, Takayuki Kiba, Midori Kawamura, Yoshio Abe, Kyung Ho Kim
    • Organizer
      14th International Conference of Surfaces, Coatings and Nanostructured Materials (Nanosmat 2020)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 金属ナノメッシュ構造の作製と電気・光学特性評価2020

    • Author(s)
      宇賀神舞、木場隆之、川村みどり、阿部良夫、金 敬鎬、陳 亜鳳、高山純一、樋浦諭志、村山明宏
    • Organizer
      2020年 第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 金属/誘電体/金属積層膜を電極に用いたOLEDの作製と特性評価2020

    • Author(s)
      大原 将、木場隆之、川村みどり、阿部良夫、金 敬鎬
    • Organizer
      2020年 第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 金属/誘電体/金属積層膜を電極に用いたOLED の作製と特性評価2020

    • Author(s)
      佐藤修也、北林拓弥、木場隆之、川村みどり、阿部良夫、金 敬鎬
    • Organizer
      2020年 第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Research-status Report
  • [Remarks] 北見工業大学 電子材料研究室 Website

    • URL

      http://www.mtrl.kitami-it.ac.jp/~kawamura/

    • Related Report
      2021 Research-status Report
  • [Remarks] 北見工業大学・研究者総覧 ― 木場 隆之

    • URL

      http://hanadasearch.office.kitami-it.ac.jp/searchja/show/id/1306

    • Related Report
      2020 Research-status Report
  • [Remarks] 北見工業大学・電子材料研究室 Webサイト

    • URL

      http://www.mtrl.kitami-it.ac.jp/~kawamura/

    • Related Report
      2020 Research-status Report

URL: 

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

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