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LEDs

Breakthrough in Pulse Oximetry Technology Using OLEDs with Dual Emission

Strategic Insights

— 1 min read

Researchers at Lomonosov Moscow State University have developed a new class of bimetallic complexes that offer a breakthrough opportunity for simplifying pulse oximetry technology. The complexes, EuYb(L)Q, exhibit simultaneous emission at 612 and 978 nm, making them ideal for solution-processed OLEDs. A custom-built pulse oximeter prototype using one of these devices has demonstrated real-time measurement of heart rate and blood oxygen saturation, showing a high degree of agreement with commercial devices.

Key Takeaways:

  • A new class of bimetallic complexes, EuYb(L)Q, has been developed with simultaneous emission at 612 and 978 nm, optimized for solution-processed OLEDs.
  • The complexes have been used to create a custom-built pulse oximeter prototype that demonstrates real-time measurement of heart rate and blood oxygen saturation.
  • The prototype shows high agreement with commercial devices, paving the way for next-generation wearable biomedical sensors.
  • The research has been peer-reviewed and published in ChemMedChem, a journal of the Wiley-v C H Verlag Gmbh publisher.
  • The device uses a single-pixel light source, EuYb(dbm)thiadiazolophenanthroline (TDZP), which exhibits the highest electroluminescence intensity in both spectral ranges.
  • The research team, led by Makarii I. Kozlov, includes additional authors Andrey I. Kornikov, Andrey A. Vashchenko, Andrey A. Poyarkov, Alexander S. Goloveshkin, Egor V. Latipov, Leonid S. Lepnev, and Valentina V. Utochnikova.

Statistics:

  • The devices have simultaneous emission at 612 and 978 nm.
  • The pulse oximeter prototype demostrated real-time measurement of heart rate and blood oxygen saturation.
  • The prototype showed a high degree of agreement with commercial devices.
  • The device uses a single-pixel light source, EuYb(dbm)thiadiazolophenanthroline (TDZP), which exhibits the highest electroluminescence intensity in both spectral ranges.
  • The research has been peer-reviewed and published in ChemMedChem, a journal of the Wiley-v C H Verlag Gmbh publisher.

Sources:

  • A Dual-Emissive Lanthanide Organic light-emitting diode for Single-Pixel Pulse Oximetry: From Molecular Design to Device-Level Integration. ChemMedChem, 2025.
  • Wiley-v C H Verlag Gmbh, Postfach 101161, 69451 Weinheim, Germany. (Wiley-Blackwell - www.wiley.com/; ChemMedChem - onlinelibrary.wiley.com/journal/10.1002/(ISSN)1860-7187)
  • Lomonosov Moscow State University, 1, Leninskye Gory, Moscow, 119991, Russia.

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