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A new model is presented to predict hydrogen-assisted fatigue. The model combines a phase field description of fracture and fatigue, stress-assisted hydrogen diffusion, and a toughness degradation formulation with cyclic and hydrogen contributions. Hydrogen-assisted fatigue crack growth predictions exhibit an…

Have you noticed that your phone battery seems to hold less charge than when you first bought it? One key reason is the mechanical fracture of electrode particles inside the lithium-ion battery. Researchers have found that a novel microstructure design,…

In organic semiconductors, charge carriers may form delocalized or localized quasiparticles depending on molecular properties and environmental effects. Here, it is shown how structural and electrostatic disorder induce localization. Physical Review X 14, 021021 (2024) Authors: Ljiljana Stojanović, Jack Coker,…

Hair care formulations like shampoos and conditioners contain a mixture of surfactants and polyelectrolytes to modify different properties. One important target of conditioners is to leave the hair feeling smooth, by reducing friction. In this study, we use non-equilibrium molecular…

Boosting Photocatalysis with 2D Heterostructures. A team led by Azeem Nabi at University of Gujrat (Pakistan) and Devis Di Tommaso (Queen Mary University of London) explored computationally van der Waals heterostructures combining boron arsenide (BAs) and Janus MXY monolayers (M…

This manuscript reports molecular simulations of bolaamphiphiles, elongated molecules with attractive moieties on each end. An initial portion of the manuscript deals with the algorithms developed to obtain the macroscopic behaviour of these fluids from the knowledge of their interactions…

A new fabrication process that could be used to build a quantum computer achieves an almost zero failure rate and has the potential to be scaled up, according to new research from engineers and physicists at UCL. The study, published in Advanced…

An electronic nose is a device that can detect gases and recognise odour. In general, however, they cannot yet compete with the versatility and sensitivity of the best biological noses. Drawing on a proposed theory of how humans identify odour…

The vibrational spectra of crystals, on which many thermal and mechanical properties depend, are known to be highly structured at low temperatures, with all of the energy restricted to a set of surfaces in reciprocal spacetime, known as the phonon bands.…

Solar cells are a promising renewable energy source due to theirability to convert sunlight into electricity without a negative impact on theenvironment. Most commercial photovoltaics are made from silicon but there is ademand for alternative technologies with greater efficiency and…