It is highly desirable for exploring and discovering new materials and outcome‐based
approaches to exceed the Shockley–Queisser limit for single‐junction photovoltaic cells …

The state-of-the-art knowledge of ferroelectric and ferroelastic group-IV monochalcogenide
monolayers is surveyed. These semiconductors feature remarkable structural and …

Terahertz (THz) radiation encompasses a wide spectral range within the electromagnetic
spectrum that extends from microwaves to the far infrared (100 GHz–∼ 30 THz). Within its …

Terahertz (THz) emission spectroscopy (TES) has emerged as a highly effective and
versatile technique for investigating the photoelectric properties of diverse materials and …

Photoexcitation in solids brings about transitions of electrons/holes between different
electronic bands. If the solid lacks an inversion symmetry, these electronic transitions …

The gas sensing properties of single-layer GeS have been studied by performing density
functional theory (DFT) calculations, and the present results demonstrate that monolayer …

Among 2D/layered semiconductors, group IV monochalcogenides such as SnS (e) and GeS
(e) have attracted attention as phosphorene/black phosphorus analogues with anisotropic …

A relationship is derived between differences in electric polarization between bands and the
“shift vector” that controls part of a material's bulk photocurrent, then demonstrated in several …

Zero-valent intercalation of atomic metals into the van der Waals gap of layered materials
can be used to tune their electronic, optical, thermal, and mechanical properties. Here, we …

The quantum phenomenon of shift photovoltaic current was predicted decades ago, but this
effect was never observed directly because shift and ballistic currents coexist. The atomic …