New photovoltaic materials have been searched for in the past decades for clean and
renewable solar energy conversion with an objective of reducing the levelized cost of …

Lead halide perovskites have been demonstrated as high performance materials in solar
cells and light-emitting devices. These materials are characterized by coherent band …

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

We have examined the crystal structures and structural phase transitions of the deuterated,
partially deuterated and hydrogenous organic-inorganic hybrid perovskite methyl …

Hybrid organic–inorganic perovskites have emerged as promising gain media for tunable,
solution-processed semiconductor lasers. However, continuous-wave operation has not …

Abstract CH3NH3PbX3 (MAPbX3) perovskites have attracted considerable attention as
absorber materials for solar light harvesting, reaching solar to power conversion efficiencies …

Conspectus Organic–inorganic semiconductors, which adopt the perovskite crystal structure,
have perturbed the landscape of contemporary photovoltaics research. High-efficiency solar …

Electrons are the workhorses of solar energy conversion. Conversion of the energy of light to
electricity in photovoltaics, or to energy-rich molecules (solar fuel) through photocatalytic …

Emission characteristics of metal halide perovskites play a key role in the current
widespread investigations into their potential uses in optoelectronics and photonics …

We present Raman and terahertz absorbance spectra of methylammonium lead halide
single crystals (MAPbX3, X= I, Br, Cl) at temperatures between 80 and 370 K. These results …