Rate My Professor Uli Lemmer

Lemmer's research centers on printable organic and inorganic semiconductors for optoelectronic applications. His contributions include pioneering work on the spectroscopy of conjugated polymers and organic semiconductor lasers. His team has developed highly efficient solution-processed organic solar cells, organic light-emitting devices, printed optoelectronic sensor systems, and large-area nanostructured light management foils. He has authored over 450 journal publications, accumulating more than 29,000 citations with an h-index of 89. Key publications encompass "Near-infrared imaging with quantum-dot-sensitized organic photodiodes" (Nature Photonics, 2009), "Exciton diffusion and dissociation in conjugated polymer/fullerene blends and heterostructures" (Physical Review B, 1999), and "Femtosecond energy relaxation in π-conjugated polymers" (Physical Review Letters, 1993). Among his honors are Optica Fellowship (2019), the Esther Hoffman Beller Medal (2018), and an ERC Advanced Grant (2023) for the project on origami-inspired thermoelectric generators by printing and folding. At KIT, he teaches courses on solid-state electronics, optoelectronics, polymer electronics, and photovoltaics.