We discuss the potential of OLEDs for biomedical applications. Specifically, we present our latest research on near-infrared (NIR) OLEDs based on phosphorescent compounds. Beginning with fundamental synthetic concepts, we delve into how the design of the emitting layer influences the emission spectrum and efficiency, aiming for optimal device design. We also showcase the application of these NIR OLEDs in photobiomodulation (PBM). Following this, we share our advancements in internal PBM using OLED catheters, which incorporate ultrathin OLEDs. Additionally, we discuss the outcomes of animal experiments, focusing on rats with type-II diabetes that have been treated with duodenal OLED PBM.
In this talk, we will discuss on what needs to be done to tailor OLEDs to meet the requirements for various wearable healthcare applications. First of all, we will introduce some of our recent works on Pt-based phosphorescent emitters for near-infrared OLEDs and discuss their potential applications in healthcare. We will then present our progress in body-attached low-power pulse oximetry sensors based on OLEDs and OPDs. Furthermore, we will describe some of the recent results obtained with ultraflexible OLEDs packaged with biocompatible materials and will present the extension of their applications to non-conventional areas such as internal photobiomodulation.
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