Plasmonics toward high-efficiency LEDs from the visible to the deep-UV region

K. Okamoto, M. Funato, Y. Kawakami, N. Okada, K. Tadatomo, K. Tamada

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

2 被引用数 (Scopus)

抄録

The surface plasmon (SP) resonance was used to increase the emission efficiencies toward high efficiency light-emitting diodes (LEDs). We obtained the enhancements of the electroluminescence from the fabricated plasmonic LED device structure by employing the very thin p+-GaN layer. The further enhancements should be achievable by optimization of the metal and device structures. Next important challenge is to extend this method from the visible to the deep UV region. By using Aluminum, we obtained the enhancements of emissions at ∼260 nm from AlGaN/AlN quantum wells. We succeeded to control the SP resonance by using the various metal nanostructures. These localized SP resonance spectra in the deep-UV regions presented here would be useful to enhance deep UV emissions of super wide bandgap materials such as AlGaN/AlN. We believe that our approaches based on ultra-deep UV plasmonics would bring high efficiency ultra-deep UV light sources.

本文言語英語
ホスト出版物のタイトルLight-Emitting Diodes
ホスト出版物のサブタイトルMaterials, Devices, and Applications for Solid State Lighting XXI
編集者Michael R. Krames, Jong Kyu Kim, Li-Wei Tu, Martin Strassburg
出版社SPIE
ISBN(電子版)9781510606890
DOI
出版ステータス出版済み - 2017
イベントLight-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XXI 2017 - San Francisco, 米国
継続期間: 1月 30 20172月 1 2017

出版物シリーズ

名前Proceedings of SPIE - The International Society for Optical Engineering
10124
ISSN(印刷版)0277-786X
ISSN(電子版)1996-756X

その他

その他Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XXI 2017
国/地域米国
CitySan Francisco
Period1/30/172/1/17

!!!All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

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