Conspectus The past few years have witnessed an exciting revival of the research interest in
two-dimensional (2D) lead halide perovskites. The renaissance is strongly motivated by the …

Lead halide perovskites are extensively investigated as efficient solution-processable
materials for photovoltaic applications. The greatest stability and performance of these …

Phonon-assisted photon upconversion holds great potential for numerous applications, eg,
optical refrigeration. However, traditional semiconductors face energy gain limitations due to …

Two different heat-transport mechanisms are discussed in solids. In crystals, heat carriers
propagate and scatter particlelike as described by Peierls's formulation of the Boltzmann …

Chemical bonding present in crystalline solids has a significant impact on how heat moves
through a lattice, and with the right chemical tuning, one can achieve extremely low thermal …

As the periodic atomic arrangement of a crystal is made to a disorder or glassy-amorphous
system by destroying the long-range order, lattice thermal conductivity, κL, decreases, and …

Molecularly soft organic-inorganic hybrid perovskites are susceptible to dynamic instabilities
of the lattice called octahedral tilt, which directly impacts their carrier transport and exciton …

Systems and methods are disclosed for communicating data in an integrated sensor network
having one or more nodes coupled to an optical sensor network and a radio frequency …

Lead‐based halide perovskite crystals are shown to have strongly anharmonic structural
dynamics. This behavior is important because it may be the origin of their exceptional …

Outstanding photovoltaic (PV) materials combine a set of advantageous properties including
large optical absorption and high charge carrier mobility, facilitated by small effective …