Understanding photogenerated charge separation on the nano-to micrometer scale is the
key to optimizing the photocatalytic solar energy conversion efficiency. In the past few years …

Covalent organic frameworks (COFs) represent an important class of crystalline porous
materials with designable structures and functions. The interconnected organic monomers …

Integrated photoelectrochemical devices rely on the synergy between components to
efficiently generate sustainable fuels from sunlight. The micro-and/or nanoscale …

Atomic force microscopy (AFM) offers unparalleled insight into structure and material
functionality across nanometer length scales. However, the spatial resolution afforded by the …

We study light-induced dynamics in thin films comprising Ruddlesden–Popper phases of the
layered 2D perovskite (C4H9NH3) 2PbI4. We probe ionic and electronic carrier dynamics …

Mechanistic probing of surface potential changes arising from dynamic charge transport is
the key to understanding and engineering increasingly complex nanoscale materials and …

Optoelectronic behavior in materials such as organic/inorganic hybrid perovskites depend
on a complex interplay between fast (electronic) and slower (ionic) processes. These …

Atomic force microscopy (AFM) routinely achieves structural information in the sub-nm
length scale. Measuring time resolved properties on this length scale to understand kinetics …

Surface photovoltage (SPV) measurements are a crucial way of investigating optoelectronic
and photocatalytic semiconductors. The local SPV is generally measured consecutively by …

Recently, there have been a number of variations of electrostatic force microscopy (EFM)
that allow for the measurement of time-varying forces arising from phenomena such as ion …