Atomistic Modeling of Grain Boundary Migration in Nickel
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Engineering Materials"
DOI: 10.1002/adem.202000115
Abstract: Herein, the molecular dynamics (MD) simulations of pure Ni crystallites are performed to show the influence of the grain boundary (GB) geometry on the values of the activation energy of GB migration. The considered systems… read more here.
Keywords: polycrystalline; atomistic modeling; modeling grain; migration ... See more keywords
Grain Boundary Sliding During High Pressure Torsion of Nanocrystalline Au‐13Pd Alloy
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Engineering Materials"
DOI: 10.1002/adem.202400214
Abstract: The microstructure and texture are investigated for nanocrystalline Au‐13at%Pd deformed by high‐pressure torsion. The grain size of this alloy is observed to remain below about 20 nm when subjected to severe plastic deformation. Surprisingly, the initial… read more here.
Keywords: pressure torsion; boundary sliding; grain boundary; high pressure ... See more keywords
The Role of Extrusions and Intrusions in the Initiation and Intergranular Growth of Fatigue Cracks
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DOI: 10.1002/adem.202400313
Abstract: The role of extrusions and intrusions in the initiation and growth of intergranular fatigue cracks is studied by performing strain‐controlled fatigue experiments on polycrystalline copper and by analyzing the development of intergranular crack initiation and… read more here.
Keywords: fatigue; crack; extrusions intrusions; grain boundary ... See more keywords
Grain-Boundary "Patches" by In Situ Conversion to Enhance Perovskite Solar Cells Stability.
Sign Up to like & getrecommendations! Published in 2018 at "Advanced materials"
DOI: 10.1002/adma.201800544
Abstract: The power conversion efficiency of organic-inorganic hybrid perovskite solar cells has increased rapidly, but the device stability remains a big challenge. Previous studies show the grain boundary (GB) can facilitate ion migration and initiate device… read more here.
Keywords: grain boundary; perovskite solar; boundary patches; conversion ... See more keywords
Grain-Boundary-Induced Drastic Sensing Performance Enhancement of Polycrystalline-Microwire Printed Gas Sensors.
Sign Up to like & getrecommendations! Published in 2019 at "Advanced materials"
DOI: 10.1002/adma.201804583
Abstract: The development of materials with high efficiency and stable signal output in a bent state is important for flexible electronics. Grain boundaries provide lasting inspiration and a promising avenue for designing advanced functionalities using nanomaterials.… read more here.
Keywords: grain boundary; boundary induced; induced drastic; sensing performance ... See more keywords
Full‐Dimensional Grain Boundary Stress Release for Flexible Perovskite Indoor Photovoltaics
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202200320
Abstract: Perovskite photovoltaics are strong potential candidates to drive low‐power off‐grid electronics for indoor applications. Compared with rigid devices, flexible perovskite devices can provide a more suitable surface for indoor small electronic devices, enabling them have… read more here.
Keywords: flexible perovskite; indoor; grain boundary; stress release ... See more keywords
Unraveling Thermodynamic and Kinetic Contributions to the Stability of Doped Nanocrystalline Alloys using Nanometallic Multilayers
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202200354
Abstract: Targeted doping of grain boundaries is widely pursued as a pathway for combating thermal instabilities in nanocrystalline metals. However, certain dopants predicted to produce grain‐boundary‐segregated nanocrystalline configurations instead form small nanoprecipitates at elevated temperatures that… read more here.
Keywords: unraveling thermodynamic; thermodynamic kinetic; grain boundary; kinetic contributions ... See more keywords
Flattening Grain‐Boundary Grooves for Perovskite Solar Cells with High Optomechanical Reliability
Sign Up to like & getrecommendations! Published in 2023 at "Advanced Materials"
DOI: 10.1002/adma.202211155
Abstract: Optomechanical reliability has emerged as an important criterion for evaluating the performance and commercialization potential of perovskite solar cells (PSCs) due to the mechanical‐property mismatch of metal halide perovskites with other device layer. In this… read more here.
Keywords: boundary grooves; solar cells; grain boundary; reliability ... See more keywords
Interstitial Segregation has the Potential to Mitigate Liquid Metal Embrittlement in Iron.
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DOI: 10.1002/adma.202211796
Abstract: The embrittlement of metallic alloys by liquid metals leads to catastrophic material failure and severely impacts their structural integrity. The weakening of grain boundaries by the ingress of liquid metal and preceding segregation in the… read more here.
Keywords: liquid metal; interstitial segregation; grain boundary; segregation ... See more keywords
Intrinsic Grain Boundary Structure and Enhanced Defect States in Air‐Sensitive Polycrystalline 1T’‐WTe2 Monolayer
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DOI: 10.1002/adma.202402219
Abstract: Monolayer WTe2 has attracted significant attention for its unconventional superconductivity and topological edge states. However, its air sensitivity poses challenges for studying intrinsic defect structures. This study addresses this issue using a custom‐built inert gas… read more here.
Keywords: air sensitive; wte2; grain boundary; polycrystalline wte2 ... See more keywords
Grain‐Boundary Elimination via Liquid Medium Annealing toward High‐Efficiency Sb2Se3 Solar Cells
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Materials"
DOI: 10.1002/adma.202414082
Abstract: Suppression of charge recombination caused by unfavorable grain boundaries (GBs) in polycrystalline thin films is essential for improving the optoelectronic performance of semiconductor devices. For emerging antimony selenide (Sb2Se3) materials, the unique quasi‐1D structure intensifies… read more here.
Keywords: efficiency; liquid medium; solar cells; sb2se3 solar ... See more keywords