Deep-blue OLEDs shine

Suppressed Dexter transfer is needed to achieve efficient and stable hyperfluorescence, but complex matrices must be involved. A molecular design strategy has been proposed where Dexter transfer can be substantially reduced by an encapsulated terminal emitter, leading to ‘matrix-free’ hyperfluorescence.

See Cho et al.

Growing tunable moirés

Two-dimensional structures with tunable moiré patterns, which display tunable interlayer excitons and moiré intralayer excitons, are achieved by epitaxial bottom-up growth.

See Fortin-Deschênes et al.

Precise control of gas transport in metal–organic framework glasses

Porosity of zeolitic imidazolate frameworks can be preserved beyond the glass transition and melt processing. Here centimetre-scale porous glasses are demonstrated, while liquid processing enables fine-tuning of the size of the gas-transporting channels for molecular sieving.

See Smirnova et al.

Magnetoelectric metamaterials for neurostimulation

Self-rectifying magnetoelectric metamaterials with nonlinear responses generate electrical pulse sequences that enable precisely timed remote neural stimulation and restoration of sensory motor responses in vivo.

See Chen et al.