Observation of transient emission in organic light-emitting devices

• Project/Area Number: 20560007
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Applied materials science/Crystal engineering
• Research Institution: University of Toyama
• Principal Investigator: NAKA Shigeki University of Toyama, 大学院・理工学研究部(工学), 准教授 (50242483)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2008: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 有機半導体 / 半導体物性 / 電子・電気材料 / 有機導体

Research Abstract

For evaluation of operation mechanisms of the organic light-emitting devices (OLEDs), DC and transient response characteristics of OLEDs inserted a photo carrier generation layer were examined. Enhancement of current density under photo irradiation was observed by optimization of carrier generation layer and device structure. In addition, transient response of current was observed to suggest carrier injection at organic/metal interface.

Research Products

• [Journal Article] Enhancement of Electron Injection in Organic Light-Emitting Diodes with Photosensitive Charge Generation Layer (2011)
  • Author(s): Y.Okawa, S.Naka, H.Okada
  • Journal Title: Jpn.J.Appl.Phys. Vol.50
  • NAID: 210000138308
  • Peer Reviewed
• [Journal Article] Enhancement of Electron Injection in Organic Light-Emitting Diodes with Photosensitive Charge Generation Layer (2011)
  • Author(s): Y.Okawa, S.Naka, H.Okada
  • Journal Title: Jpn. J. Appl. Phys. Volume: 50
  • NAID: 210000138308
  • Peer Reviewed
• [Presentation] 電子発生を利用したレーザ書込有機EL素子特性 (2010)
  • Author(s): 大川、中、岡田
  • Organizer: 2010年秋季第71回応用物理学会学術講演会(講演番号16pZK-14)
  • Place of Presentation: 長崎大学(長崎)
  • Year and Date: 2010-09-16
• [Presentation] 電子発生を利用したレーザ書込有機EL素子特性 (2010)
  • Author(s): 大川、中、岡田
  • Organizer: 2010年秋季第71回応用物理学会学術講演会
  • Place of Presentation: 長崎大学
  • Year and Date: 2010-08-30
• [Presentation] Enhancement of Carrier Injection of Organic Light-Emitting Diodes by External Light (2010)
  • Author(s): 大川, 中, 岡田
  • Organizer: 第3回有機・無機電子材料とナノテクノロジーに関する国際シンポジウム(講演番号P2-5)
  • Place of Presentation: 富山国際会議場(富山)
  • Year and Date: 2010-06-24
• [Presentation] Enhancement of Carrier Injection of Organic Light-Emitting Diodes by External Light (2010)
  • Author(s): 大川、中、岡田
  • Organizer: 第3回有機・無機電子材料とナノテクノロジーに関する国際シンポジウム
  • Place of Presentation: 富山国際会議場(富山)
  • Year and Date: 2010-06-22