John A. Marohn

John A. Marohn is a Professor in the Department of Chemistry and Chemical Biology at Cornell University. His research focuses on imaging materials at the nanometer scale, particularly through magnetic resonance imaging techniques to study individual biomolecules and charge dynamics in thin-film devices. His work includes the development of tools for detecting and imaging electron spins, as well as investigating charge behavior in materials such as lead halide perovskites and organic photovoltaics. Marohn's research spans biophysical, analytical, and materials science, with an emphasis on quantum measurement and nanoscale fluctuations. His group explores the interaction of electric fields with materials, including the study of charge trapping and transport in semiconductors.

John Marohn is a physical chemist at Cornell University, specializing in the dynamics of charge transport and energy transfer in nanoscale systems. His research explores the behavior of charge carriers in organic and inorganic semiconductors, with a focus on exciton dissociation, charge trapping, and recombination mechanisms. He investigates the role of electric fields, dielectric fluctuations, and interfacial effects in determining the performance of optoelectronic devices. His work includes the development of advanced experimental techniques such as time-resolved electric force microscopy and optical Larmor beat detection to probe charge dynamics at the nanoscale. Marohn's research has significant implications for the design of high-efficiency solar cells and magnetic resonance imaging technologies.