Concept
Grain growth
Publications associées (338)
Carbazole Treated Waterproof Perovskite Films with Improved Solar Cell Performance
Paul Joseph Dyson, Ursula Röthlisberger, Felix Thomas Eickemeyer, Lukas Pfeifer, Haizhou Lu, Virginia Carnevali, Yeonju Kim, Jaeki Jeong, Nikolaos Lempesis, Lorenzo Agosta, Masaud Hassan S Almalki
Surface passivation has been widely employed to suppress non-radiative charge recombination and prevent interfacial charge accumulation in perovskite photovoltaics. In this report, carbazole modified with ammonium iodide connected via alkyl chains of diffe ...
Wiley-V C H Verlag Gmbh2024Vacancy segregation and intrinsic coordination defects at (111) twist grain boundaries in diamond
Carolina Baruffi, Christian Brandl
High radiation damage resistance has become increasingly important for applications of functional materials in harsh environments. The high radiation damage resistance diamond cubic carbon is a unique material which is considered for radiation environments ...
Oxford2023Tensile and creep-rupture response of additively manufactured nickel-based superalloy CM247LC
Christian Leinenbach, Rafal Wróbel
Tensile and creep rupture properties of crack-free CM247LC alloy, processed via laser powder bed fusion, have been characterised in this work at temperatures up to 1000 & DEG;C. The subject alloy matches or even exceeds the tensile performance of its direc ...
ELSEVIER2023Rapid grain boundary diffusion in foraminifera tests biases paleotemperature records
Anders Meibom, Jaroslaw Hubert Stolarski, Arthur Adams, Deyanira Graciela Cisneros Lazaro, Lukas Baumgartner, Jinming Guo
The paleoseawater temperature record from the oxygen isotope compositions of fossil foraminifera tests may be biased by up to about 1 degrees C due to grain-boundary diffusion alone, according to isotope exchange experiments on foraminifera tests. The oxyg ...
SPRINGERNATURE2023The influence of lattice misfit on screw and edge dislocation-controlled solid solution strengthening in Mo-Ti alloys
William Curtin, Carolina Baruffi, You Rao
Mo-Ti alloys form solid solutions over a wide range of compositions, with lattice misfit parameters increasing significantly with titanium content. This indicates a strong increase in the critical stress for edge dislocation motion. Here, we probe the tran ...
SPRINGERNATURE2023Atomic scale volume and grain boundary diffusion elucidated by in situ STEM
Johann Michler, Xavier Maeder, Laszlo Pethö, Amit Sharma
Diffusion is one of the most important phenomena studied in science ranging from physics to biology and, in abstract form, even in social sciences. In the field of materials science, diffusion in crystalline solids is of particular interest as it plays a p ...
Berlin2023Bifurcations in mountain rivers: insights on their hydraulics from field measurements.
Christophe Ancey, Ivan Pascal, Bob de Graffenried, Raphaël Miazza
Although the importance of studying channel bifurcations is widely recognised, their hydraulic behaviour in shallow, rough mountain rivers has so far received little attention from researchers. Understanding the specific hydraulics of such units is essenti ...
2023Highly Efficient and Air-Stable Inorganic Perovskite Solar Cells Enabled by Polylactic Acid Modification
Inorganic perovskite solar cells (PSCs) suffer from serious carrier recombination and open-circuit voltage loss because of surface defects and unfavorable energy level alignment. Herein, a polylactic acid (PLA) modification approach to improve the performa ...
WILEY-V C H VERLAG GMBH2023Modelling the coevolution of London's population and railway system
As cities continue to expand it has become crucial to describe their evolution in time and space. Building on analogies with biological systems, we propose a minimalist reaction-diffusion model coupled with economic constraints and an adaptive transport ne ...
2023Theory of spontaneous grain boundary roughening in high entropy alloys
William Curtin, Carolina Baruffi
High Entropy Alloys (HEAs) are a new broad class of near-random solid solution alloys that can possess some impressive mechanical and physical properties including high stability against grain growth (i.e. low grain boundary (GB) mobility). Here, it is sho ...
PERGAMON-ELSEVIER SCIENCE LTD2022