Dresden 2026 – scientific programme
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HL: Fachverband Halbleiterphysik
HL 2: Focus Session: Biocompatible Organic Semiconductors for Artificial Intelligence
HL 2.5: Invited Talk
Monday, March 9, 2026, 11:45–12:15, POT/0051
Organic LEDs and photodetectors for light-based diagnostics and therapy — •Caroline Murawski1,2, Rabiul Islam1,2, Siddhartha Saggar1,2, and Jens P. Weber1,2 — 1Institute of Solid-State Electronics, TUD Dresden University of Technology, 01062 Dresden, Germany — 2Kurt Schwabe Institute for Sensor Technologies, 04736 Waldheim, Germany
Light-based biomedical sensing and therapy enables highly precise, timely and contactless interventions and range from neuronal stimulation via optogenetics over sensing cellular activity by functional fluorescence to monitoring health signals using wearable devices. Organic semiconductors are ideally suited building blocks due to their tunability of material properties, mechanical flexibility and ability for patterning to microscopic shapes. Here, I will present the development of organic LEDs (OLEDs) and photodiodes (OPDs) as light sources and sensors for biomedical applications. The OLEDs are tailored towards high power output and application-specific angular and spectral emission properties. Devices are fabricated on flexible substrates, patterned to sub-mm scale, and applied in optogenetics and fluorescence imaging. Furthermore, I will show flexible OPDs used for photoplethysmography at ambient light conditions and under water.