Dr. Omar Mohammed is a professor in the Materials Science and Applied Physics Program atKAUST. His research group, Ultrafast Laser Spectroscopy and Four-Dimensional ElectronImaging, studies carrier dynamics in varied solar cell and X-ray imaging systems. Prior tojoining KAUST in 2012, he worked as a senior research associate at Caltech, where hepioneered the development of advanced characterization electron imaging techniques forstudying the surface and interfacial dynamics on nanometer and femtosecond scales, andfurthered understanding of photo-generated charge carrier dynamics in photoactive materials.Mohammed has published more than 370 articles in international peer-reviewed journals suchas Science, Nature, Nature Materials, Nature Energy and Nature Photonics. He is recognizedas a Highly-Cited Researcher (2019—2024), with more than 45,000 citations and an h-index of100. He is a fellow and member of diverse professional groups, among them the AmericanChemical Society and Royal Society of Chemistry. Mohammed is the recipient of severalprestigious awards, including the Distinguished Scholar Award from Arab Fund for Economicand Social Development, Kuwait; Long-term Fellowship, Germany; the Japan Society for thePromotion of Science (JSPS) fellowship, Japan; and Shoman Prize in Photochemistry, Jordan.​

Professor Mohammed's research is directed towards the fundamental understanding of carrier dynamics in a variety of light-harvesting systems for solar cells and X-ray imaging, including semiconductor quantum dots, perovskites materials, polymers, metal organic frameworks and copper halides glasses with the aid of cutting-edge ultrafast laser spectroscopy and four-dimensional electron imaging. The current research activities of Dr. Mohammed are focused on the development of highly efficient solar cells materials, and X-ray imaging scintillators and detectors for high resolution and low dose X-ray medical diagnostic and security inspections.​