Open Access

Stability of perovskite-based photovoltaics remains a topic requiring further attention. Cation engineering influences perovskite stability, with the present-day understanding of the impact of cations based on accelerated ageing tests at higher-than-operating temperatures (e.g. [...]

We calculate the strength of the effective on-site Coulomb interaction (Hubbard U) in two-dimensional transition-metal (TM) dihalides MX2 and trihalides MX3 (M=Ti, V, Cr, Mn, Fe, Co, Ni; X=Cl, Br, I) from first principles using the constrained random-phase approximation. The correlated subspaces are formed from t2g or eg bands at the Fermi energy. [...]

Thermal gradients induce a motion of solute molecules towards hot or cold regions. The motion of solutes in a solvent induced by a thermal gradient is termed thermodiffusion. [...]

We investigate the climate signature of δ18O tree-ring records from sites distributed all over Europe covering the last 400 years. An empirical orthogonal function (EOF) analysis reveals two distinct modes of variability on the basis of the existing δ18O tree-ring records. [...]

Abstract. Measurements of the spectrum of the atmospheric emission in the far-infrared (FIR) range, between 100 and 667 cm−1 (100–15 micron), are scarce because of the detection complexity and of the strong absorption of air at ground level, preventing the sounding of the FIR from low altitude. [...]

Justus Haucap, Nima Moshgbar und Wolfgang Benedikt Schmal von der Heinrich-Heine-Universität Düsseldorf haben im März 2021 eine empirische Studie zu den Effekten von DEAL auf das Publikationsverhalten deutscher Autor:innen vorgelegt (http://hdl.handle.net/10419/231802). Darin stellen Sie eine Änderung des Publikationsverhaltens in Chemie-Zeitschriften fest und sehen wettbewerbsrechtliche Implikationen. [...]

The dynamics of a triangular magnetocapillary swimmer is studied using the lattice Boltzmannmethod. We extend on our previous work, which deals with the self-assembly and a specific type of theswimmer motion characterized by the swimmer’s maximum velocity centred around the particle’s inverseviscous time. [...]

Cognitive deficits are common in glioma patients following multimodality therapy, but the relative impact of different types and locations of treatment-related brain damage and recurrent tumors on cognition is not well understood. In 121 WHO Grade III/IV glioma patients, structural MRI, O-(2-[18F]fluoroethyl)-L-tyrosine FET-PET, and neuropsychological testing were performed at a median interval of 14 months (range, 1–214 months) after therapy initiation [...]