ABSTRACT A thorough understanding of the microscopic picture of heat conduction in
solids is critical to a broad range of applications, from thermal management of …

Understanding the ultrafast evolution of atomic and electronic rearrangements under
nonequilibrium conditions in organic, inorganic and biological materials plays a …

A comprehensive microscopic description of thermally induced distortions in lead halide
perovskites is crucial for their realistic applications, yet still unclear. Here, we quantify the …

Quantum dot (QD) solids are emerging materials for many optoelectronic applications. To
enhance interdot coupling and charge transport, surface ligands can be removed, allowing …

We use bright-field imaging in an ultrafast electron microscope to spatiotemporally map the
evolution of photoexcited coherent strain waves in a single, micrometer-size flake of MoS2 …

Here, using ultrafast electron crystallography (UEC), we report the observation of rippling
dynamics in suspended monolayer graphene, the prototypical and most-studied 2D …

Understanding thermal transport by phonons near nanoscale hotspots is critical for many
engineering applications, especially for nanoscale thermal measurements and …

The photothermal properties of metal nitrides have recently received significant attention
owing to diverse applications in solar energy conversion, photothermal therapies …

Metal nanocrystals exhibit important optoelectronic and photocatalytic functionalities in
response to light. These dynamic energy conversion processes have been commonly …

Layered tin selenide (SnSe) has recently emerged as a high-performance thermoelectric
material with the current record for the figure of merit (ZT) observed in the high-temperature …