Patterned multi-color organic light-emitting diodes for biomedical applications

Organic light-emitting diodes (OLEDs) offer a multitude of properties that render them particularly attractive for wearable and implantable applications in biomedicine. In this contribution, I will present our progress towards high brightness, patterned, flexible OLEDs for neuronal stimulation and imaging including stacked OLEDs for multicolor neuronal control, use of smartphone displays for optogenetics, and development of narrowband OLEDs for fluorescence imaging. Furthermore, I will show how the devices may be combined with organic photodiodes to enable simultaneous control and read-out of neuronal signals from an integrated, flexible device.