Garry Rumbles

Garry Rumbles is a Research Fellow and Principal Scientist and Group Manager for Chemical and Nanoscale Science at the National Renewable Energy Laboratory (NREL), where he has been conducting research since 2000. He also holds a Visiting Professorial Chair position at Imperial College London's Department of Chemistry and is a member of both the American Chemical Society and the Royal Society of Chemistry.

Dr. Rumbles' educational background includes a PhD in Photophysics of Synthetic Polymers from the University of London and a Bachelor's degree in Chemistry with Electronics from the University of Southampton. His postdoctoral research was conducted at the University of California, Irvine and the University of Arizona.

Dr. Rumbles' research focuses on the photochemistry and photophysics of conjugated molecular systems, with particular emphasis on solar energy conversion processes. His work examines excited-state kinetics in synthetic polymers, cis-trans isomerization of natural chromophores in biomolecules, spectroscopy of transient gas-phase molecules, and photophysics at solid-solution interfaces. He specializes in laser-based experimental techniques including time-resolved fluorescence spectroscopy, time-resolved resonance Raman spectroscopy, and time-resolved microwave conductivity. His research has practical implications for the development of more efficient solar energy conversion technologies.

His recent publications (2024-2025) demonstrate continued productivity and relevance in the field, with research spanning photoredox catalysis, charge separation mechanisms in organic semiconductors, and hydrogen evolution in organic nanoparticle systems. These works reflect his ongoing commitment to understanding fundamental photochemical processes with applications in solar energy conversion.

Dr. Rumbles has received recognition through his Research Fellow position at NREL and his extensive publication record spanning over two decades with more than 150 research outputs.

His research program utilizes advanced spectroscopic techniques to study photoinduced processes in organic and hybrid materials, with applications in solar energy conversion. The group has made significant contributions to understanding charge carrier dynamics in organic photovoltaic materials and developing new approaches for solar energy utilization.