About the Lab
Uli Lemmer’s lab focuses on the development of novel photonic and optoelectronic devices based on organic, hybrid, and printed materials. The core research goal is to enable high-performance, low-cost, and scalable technologies for sensing, energy harvesting, imaging, and communication by combining materials science, device physics, and advanced fabrication techniques.
A major emphasis of the lab is on printed and solution-processable electronics and photonics, including organic photodetectors and transistors, perovskite and hybrid solar cells, thermoelectric generators, and flexible or stretchable devices. The group also works on nano- and meta-optics, compact imaging systems, and integrated light sources, such as miniaturized laser combiners and meta-optical imaging platforms operating down to single-photon levels. Advanced printing and manufacturing approaches—such as inkjet printing, aerosol-jet printing, electrospinning, and ultra-precise dispensing—play a central role in translating lab-scale concepts to scalable technologies.
Applications of this research span renewable energy and waste-heat recovery, Internet of Things (IoT) sensors, wearable and flexible electronics, environmental and health monitoring (e.g., humidity and mold detection), and compact optical systems for imaging and sensing. These technologies address key societal challenges related to sustainability, energy efficiency, and digitalization.
The lab is well suited for students interested in applied physics, materials science, or electrical engineering. Ideal candidates enjoy interdisciplinary research, hands-on experimentation, and developing practical devices from innovative materials and fabrication concepts.