Near-infrared organic light-emitting diodes for biosensing with high operating stability

Takahiko Yamanaka, Hajime Nakanotani, Shigeo Hara, Toru Hirohata, Chihaya Adachi

Research output: Contribution to journalArticlepeer-review

54 Citations (Scopus)


We demonstrate highly stable NIR organic light-emitting diodes (OLEDs) based on a system using excitonic energy transfer from thermally activated delay fluorescence molecules to NIR fluorophores. The NIR OLEDs showed an electroluminescence peak at 780nm and robust operational stability with 2% loss of the initial radiant flux after 1000h under a constant current density of 10mA/cm2. The variation of hemoglobin oxygen saturation can be detected using the NIR OLEDs as a light source.

Original languageEnglish
Article number074101
JournalApplied Physics Express
Issue number7
Publication statusPublished - Jul 2017

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)


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