jinzhitong

Nature Electronics, Published online: 15 March 2021; doi:10.1038/s41928-021-00548-2

An electric-field-induced reversible hydrogenation reaction, which relies on a hydrogen-ion electrolyte, can be used to create graphene field-effect transistors with on/off current ratios of 108 and endurance of up to 1 million switching cycles.

Nature Materials, Published online: 22 March 2021; doi:10.1038/s41563-021-00960-1

Raman measurements of twisted bilayer MoS2 as a function of twist angles, with theoretical support, reveal phonon renormalization in this moiré superlattice.

Nature Materials, Published online: 25 March 2021; doi:10.1038/s41563-021-00959-8

Optical anisotropy and electronic compressibility measurements are used to uncover stripe phases, where the rotational symmetry of charge density is spontaneously broken, in a two-dimensional semiconductor moiré superlattice.

Nature Materials, Published online: 15 March 2021; doi:10.1038/s41563-021-00947-y

Neutron and X-ray scattering measurements provide further insight into the anharmonic behaviour of lead halide perovskites, revealing that rotations of PbBr6 octahedra in CsPbBr3 crystals occur in a correlated fashion along two-dimensional planes.

Nature Materials, Published online: 18 March 2021; doi:10.1038/s41563-021-00934-3

Low-k dielectric materials are essential to allow continued electronics miniaturization, but their low thermal conductivity limits performance. Here, two-dimensional covalent organic frameworks are shown to combine high thermal conductivity with a low dielectric constant.

Nature, Published online: 17 March 2021; doi:10.1038/s41586-021-03338-0

A simple but flexible technique based on a capillary-force-driven rolling-up process produces high-order van der Waals superlattices that are hard to produce with existing fabrication techniques.