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The BeP monolayer exhibits ultra-high and highly anisotropic carrier mobility and 29.3% photovoltaic efficiency.
Nanoscale
January 2025
Laboratory of Quantum Functional Materials Design and Application, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China.
Two-dimensional materials with a combination of a moderate bandgap, highly anisotropic carrier mobility, and a planar structure are highly desirable for nanoelectronic devices. This study predicts a planar BeP monolayer with hexagonal symmetry that meets the aforementioned desirable criteria using the CALYPSO method and first-principles calculations. Calculations of electronic properties demonstrate that the hexagonal BeP monolayer is an intrinsic semiconductor with a direct band gap of approximately 0.
View Article and Find Full Text PDFEnhancing structural health monitoring of fiber-reinforced polymer composites using piezoresistive TiCT MXene fibers.
Sci Rep
January 2025
Department of Materials Science and Engineering, Faculty of Engineering, Çanakkale Onsekiz Mart Universitesi, 17100, Çanakkale, Turkey.
The anisotropic behavior of fiber-reinforced polymer composites, coupled with their susceptibility to various failure modes, poses challenges for their structural health monitoring (SHM) during service life. To address this, non-destructive testing techniques have been employed, but they often suffer from drawbacks such as high costs and suboptimal resolutions. Moreover, routine inspections fail to disclose incidents or failures occurring between successive assessments.
View Article and Find Full Text PDFA Novel Inverse Analysis Method for Mechanical Parameter Acquisition in SiC/SiC Composites and Its Application to Turbine Disc Damage Assessment.
Materials (Basel)
January 2025
College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China.
Article Synopsis
- Accurately determining the mechanical parameters of SiC/SiC composites is essential for designing effective turbine disc structures.
- A 2D model of these composites was created using CT scanning and machine learning, and their mechanical properties were analyzed through uniaxial tensile tests and genetic algorithms.
- The study found that simulation results closely matched experimental data, leading to validated finite element models for different turbine disc designs and their damage simulations.
Micro-corrugated chiral nematic cellulose nanocrystal films integrated with ionic conductive hydrogels leads to flexible materials for multidirectional strain sensing applications.
Int J Biol Macromol
January 2025
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, PR China. Electronic address:
Multidirectional strain sensors are of technological importance for wearable devices and soft robots. Here, we report that flexible materials capable of multidirectional anisotropic strain sensing can be constructed leveraging diffusion-induced infiltration of monomers and in situ polymerization of metal ion-containing double network hydrogels in and on the surface of micro-corrugated chiral nematic cellulose nanocrystal/glucose films. Integrating the micro-corrugated cellulose nanocrystal/glucose chiral nematic films with ionic conductive hydrogels of PAA-co-AAm/sodium alginate/Al endows the materials with multidirectional mechanoelectrical resistivity and mechanochromism anisotropy.
View Article and Find Full Text PDFEnhanced non-classical electrostriction in strained tetragonal ceria.
Nat Commun
January 2025
Department of Energy Conversion and Storage, Technical University of Denmark, Lyngby, Denmark.
Electrostriction is the upsurge of strain under an electric field in any dielectric material. Oxygen-defective metal oxides, such as acceptor-doped ceria, exhibit high electrostriction 10 mV values, which can be further enhanced via interface engineering at the nanoscale. This effect in ceria is "non-classical" as it arises from an intricate relation between defect-induced polarisation and local elastic distortion in the lattice.
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