Rate My Professor Ronald Grimm

Ronald Grimm is an Associate Professor in the Department of Chemistry and Biochemistry at Worcester Polytechnic Institute, a position he has held since joining the faculty in 2014. He earned his undergraduate degree from Case Western Reserve University in the Department of Chemistry, where he studied radiative recombination rates of gas phase transition metal cations with aromatic compounds. Grimm received his PhD from the California Institute of Technology in 2005 in the Division of Chemistry and Chemical Engineering under Jack Beauchamp, investigating properties and applications of electrospray ionization and Field-Induced Droplet Ionization Mass Spectrometry. He conducted postdoctoral research at the University of California, Irvine in the Department of Chemistry with John Hemminger, characterizing interactions between adsorbed water and oxidized organic surfaces related to aged organic aerosol. Additionally, he performed postdoctoral studies at Caltech with Nate Lewis on passivation and surface chemistry of silicon for photoelectrochemical stability and solar fuels production. Prior to WPI, he served as Visiting Assistant Professor in the Department of Chemistry at Harvey Mudd College. In 2022, he was awarded tenure and promoted to Associate Professor. He currently heads the department's graduate admissions process.

Grimm's research interests encompass material chemistry, surface science, and physical chemistry, with a focus on quantifying and controlling the bulk and surface properties of solar energy conversion materials to achieve atom- and bond-level understanding. His group explores nontraditional absorbers, gluing dissimilar materials, two-dimensional and one-dimensional nanomaterials such as MXenes and lepidocrocite TiO2 nanofilaments, phase segregation in perovskites, and supramolecules including metal-organic frameworks for guest trapping and release. Techniques employed include X-ray photoelectron spectroscopy, ultraviolet photoelectron spectroscopy, temperature-programmed desorption, photoelectrochemistry, and ultrafast spectroscopy. Key publications include 'Electronic Structure of 1D Lepidocrocite TiO₂ as Revealed by Optical Absorption and Photoelectron Spectroscopy' (Journal of Physical Chemistry C, 2023), 'Photoexcited charge carrier dynamics and electronic properties of two-dimensional MXene, Nb₂CTₓ' (2D Materials, 2024), 'Iron-Chelated Silk Microfibers as a Novel Magneto-Responsive Architecture for In Situ Aligning Biomaterial Scaffolds' (Advanced Functional Materials, 2023), and 'Synergistic Impact of Passivation and Efficient Hole Extraction on Phase Segregation in Mixed Halide Perovskites' (Advanced Optical Materials, 2024). In 2024, he was part of a team awarded a President's Research Catalyst Grant.