Garry Rumbles

Garry Rumbles is an Adjunct Professor at the University of Colorado Boulder and a Research Fellow at the National Renewable Energy Laboratory (NREL), where he has worked since 2001. His research focuses on the fundamental science of solar energy conversion in organic and hybrid systems, particularly charge generation and electron transfer processes in conjugated polymers and nanostructured materials. He leads the development of time-resolved microwave conductivity (TRMC) as a key spectroscopic tool for studying charge dynamics.

His work spans collaborations with institutions like Imperial College London and NIST, with a focus on nanoscale photophysics and interfacial charge transfer. Recent publications highlight his expertise in hybrid perovskites, carbon nanotube heterojunctions, and microstructure-dependent charge transport. He has supervised numerous graduate students and postdoctoral researchers, including Justin Earley, Josh Carr, and Leo Romanetz.

• Scientific Awards: Fellow of the Royal Society of Chemistry (CSci, CChem, FRSC).
• Notable Techniques: TRMC, femtosecond transient absorption, terahertz spectroscopy, and time-resolved X-ray absorption.