Geert Brocks is a computational physicist whose activities are centered around first-principles electronic structure calculations. After nine years at Philips Research Laboratories, he moved to the University of Twente in 1998, before joining the TU/e and CCER in 2018 as part-time professor. His past activities have involved such diverse subjects as atomic-scale processes at semiconductor surfaces and interfaces, organic and molecular electronics and spintronics, solid hydrides for chemical hydrogen storage, and adsorption-induced electronic effects in graphene. His current interests include two-dimensional materials and photocatalysis for energy applications.