Highly efficient pixelated near-infrared OLED light source

T. Ichikawa, A. Takagi, N. Yamada, K. Itonaga, H. Nakanotani, C. Adachi

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In this study, we developed highly efficient pixelated near-infrared organic light-emitting diodes (NIR-OLEDs) featuring self-emission and small form factor, which are expected to expand applications of light sensing. To realize new NIROLEDs in which active-matrix drive is possible by multiple fine pixels, we established a highly efficient NIR-OLED material and top-emitting NIR-OLEDs with fine pixels. Excellent characteristics including pixel pitch of 7.8 μm, peak wavelength of more than 900 nm, and external quantum efficiency of approximately 1% were successfully demonstrated. In addition, we confirmed the feasibility of highly efficient NIR-OLEDs with fine pixels, which is expected to contribute toward miniaturized sensing light sources with low power consumption, and hence improved value.

Original languageEnglish
Title of host publicationLight-Emitting Devices, Materials, and Applications XXVI
EditorsJong Kyu Kim, Michael R. Krames, Martin Strassburg
ISBN (Electronic)9781510649156
Publication statusPublished - 2022
EventLight-Emitting Devices, Materials, and Applications XXVI 2022 - Virtual, Online
Duration: Feb 20 2022Feb 24 2022

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceLight-Emitting Devices, Materials, and Applications XXVI 2022
CityVirtual, Online

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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