Helmholtz-Zentrum Berlin für Materialien und Energie

Atomically thin amorphous carbon with an ultralow dielectric constant

Two-dimensional (2D) materials could replace conventional electronic components. Key advances have already been made in applying 2D materials to integrated circuits, but a robust, atomically thin ultralow-k dielectric remains crucial for further circuit scaling. Minimizing parasi...

Overcoming Uncontrolled Nucleation and Cesium Salt Solubility Limits in Scalable Perovskite Deposition through All-Inorganic Perovskite Nanocrystal Seeding

Abstract Optoelectronic performance, defect density, and thin-film morphology of solution-processable lead halide perovskites are highly dependent on nucleation and growth conditions during processing. Additionally, Cs+ incorporation into the lattice can have benign effects on th...

Element-Specific DonorNumbers for Anions

Abstract Anion interactions with cations/molecules are crucial across chemistry and biology: in battery electrolytes, synthesis, atmospheric processes, and protein denaturation. Selecting the optimum anion represents an immense challenge, as anion interactions are diverse and com...

Time-resolved imaging of antiferromagnetic skyrmion interactions

Abstract Quantifying particle interactions is central to understanding and controlling collective dynamics in particle-based devices such as those comprising skyrmion ensembles. Here we directly visualize, in real time, the nanosecond current-driven dynamics of an antiferromagnet...

Self‐Assembled Mesoporous Nickel Polyphthalocyanine/Graphene Microspheres for Room‐Temperature Sensing of Carbonate Ester Leakage in Batteries

ABSTRACT The low viscosity of linear carbonate esters improves electrolyte wetting and ionic conductivity, making them essential for battery operation, but also rendering them prone to rapid evaporation when cells are mechanically damaged or leaking. Given their high flammability...