Mechanical tailoring of dislocations in ceramics at room temperature: A perspective

X Fang - Journal of the American Ceramic Society, 2024 - Wiley Online Library
The potential of dislocations (line defects) in ceramics may have been greatly underrated
until most recently. Promising proofs‐of‐concept have been demonstrated for dislocation …

Possibility of high ionic conductivity and high fracture toughness in all-dislocation-ceramics

K Yasui, K Hamamoto - Materials, 2024 - mdpi.com
Based on the results of numerical calculations as well as those of some related experiments
which are reviewed in the present paper, it is suggested that solid electrolytes filled with …

Optical and electronic functionality arising from controlled defect formation in nanoscale complex oxide lateral epitaxy

R Liu, TD Janicki, SD Marks, DS Gyan, P Zuo… - Science …, 2024 - science.org
Epitaxial crystallization of complex oxides provides the means to create materials with
precisely selected composition, strain, and orientation, thereby controlling their …

Flexophotovoltaic effect and above-band-gap photovoltage induced by strain gradients in halide perovskites

Z Wang, S Shu, X Wei, R Liang, S Ke, L Shu… - Physical Review Letters, 2024 - APS
We have measured the flexophotovoltaic effect of single crystals of halide perovskites
MAPbBr 3 and MAPbI 3, as well as the benchmark oxide perovskite SrTiO 3. For halide …

Tracking surface charge dynamics on single nanoparticles

R Dagar, W Zhang, P Rosenberger, TM Linker… - Science …, 2024 - science.org
Surface charges play a fundamental role in physics and chemistry, in particular in shaping
the catalytic properties of nanomaterials. However, tracking nanoscale surface charge …

[HTML][HTML] Observation of dislocation-controlled domain nucleation and domain-wall pinning in single-crystal BaTiO3

T Jiang, F Ni, O Recalde-Benitez, P Breckner… - Applied Physics …, 2023 - pubs.aip.org
Electro-mechanical interactions between topological defects and domain walls play a key
role in the macroscopic response of bulk and thin-film ferroelectrics. The applications of …

Theoretical upper limit of dislocation density in slightly-ductile single-crystal ceramics

K Yasui, K Hamamoto - Journal of Physics: Condensed Matter, 2023 - iopscience.iop.org
Upper limit of dislocation density without fracture is numerically calculated for slightly-ductile
single-crystal ceramics for which the Griffith criterion for fracture and the Bailey–Hirsch type …

Engineering dislocation‐rich plastic zones in ceramics via room‐temperature scratching

X Fang, O Preuß, P Breckner… - Journal of the American …, 2023 - Wiley Online Library
In this communication, we demonstrate a simple but powerful method to engineer
dislocations into large plastic zones in various single‐crystal ceramic materials via room …

Enhancing the photoelectric performance of metal oxide semiconductors by introduction of dislocations

H Zhang, S Gao, H Wang, F Zhuo… - Journal of Materials …, 2024 - pubs.rsc.org
Photocatalysis, a heavily researched approach to sustainable synthesis of chemicals, often
faces challenges of high cost and the use of scarce materials or low efficiency of sustainable …

Influence of dislocations on ionic conductivity and dendrite formation in solid electrolytes

K Yasui, K Hamamoto - Physica Scripta, 2023 - iopscience.iop.org
In order to study the recently proposed strategy to tailor the electrical property of ceramics by
the introduction of dislocations, numerical calculations are performed on the influence of …