Thomas Jüstel was born in Witten, Germany in 1968. He studied chemistry at the University of Bochum from 1987 to 1992. He received his Ph.D. in coordination chemistry in 1995 in the group of Prof. Dr. K. Wieghardt (Faculty of Chemistry). He was hired by the Philips Research Laboratories Aachen in summer 1995 as a research scientist, where he started to work on luminescent materials. Some years later he became a Senior Scientist; then he was promoted to a Principal Scientist in 2003. In spring 2004 he became a professor of Inorganic Chemistry and Material Sciences at the Münster University of Applied Sciences in Germany. His current research at the University deals with nanoscale materials and novel luminescent compositions for LEDs, UV radiation sources, and X-ray detectors. He also consults several companies in the field of chemistry and light sources. His work has been published in about 250 papers and has led to 100 granted US patents on inorganic luminescent materials and their application in detectors, fluorescent lamps, plasma displays, and solid state light sources (LEDs and OLEDs).