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Materials, Volume 18, Issue 6

March-2 2025 - 201 articles

Cover Story: UV-stimulated optoelectronic synaptic devices based on ZnO nanoparticles (NPs) on sapphire substrates exhibit promising synaptic behavior for neuromorphic computing. Thermal annealing in different atmospheres significantly influences device performance. In particular, nitrogen annealing enhances synaptic characteristics by increasing oxygen vacancy concentration, leading to stronger excitatory postsynaptic currents (EPSCs), enhanced persistent photoconductivity (PPC), and improved memory retention. In contrast, oxygen annealing reduces defect states, resulting in faster signal decay and limited PPC. These findings demonstrate that nitrogen-treated ZnO NPs provide superior optoelectronic synaptic performance, highlighting their potential as key materials for next-generation light-driven neuromorphic systems. View this paper
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Articles (201)

  • Article
  • Open Access
2 Citations
790 Views
20 Pages

20 March 2025

This study investigates the effect of hygrothermal environments on the compressive properties of three-dimensional four-directional braided composites through experiments and finite element simulations, revealing the degradation behavior under variou...

  • Article
  • Open Access
866 Views
15 Pages

19 March 2025

On the basis of a microscopic model and employing Green’s function technique, the effects of temperature, size, and ion doping on the magnetization and phonon energy of the A1g mode in double perovskites Ba2FeReO6 and Sr2CrReO6—both in bu...

  • Article
  • Open Access
4 Citations
1,192 Views
18 Pages

19 March 2025

It is of great significance to clarify the corrosion mechanism of rust layers on bronze ware for appropriate conservation measures. In this study, the corrosion behavior of Cu-Sn bronze alloys in a 3.5 wt.% NaCl solution and a simulated archaeologica...

  • Article
  • Open Access
1,018 Views
14 Pages

19 March 2025

Thermoelectric technology, which converts heat and electricity into each other, has been attracting attention from the perspective of efficient energy utilization. Recently, eco-friendly and cost-effective Cu-based thermoelectric materials have been...

  • Article
  • Open Access
1 Citations
870 Views
15 Pages

19 March 2025

Superplastic deformation, which occurs when fine-grained metals exhibit high ductility (often exceeding 300%) under specific conditions at approximately half of their melting temperature, allows the creation of complex shapes required by the aerospac...

  • Article
  • Open Access
1 Citations
878 Views
27 Pages

19 March 2025

Lüders plateau, a frequently observed phenomenon in uniaxial tensile tests of 40CrNiMoA high-strength steel, significantly influences material fracture behavior but is often neglected in characterizing metal plasticity and fracture properties. T...

  • Communication
  • Open Access
1 Citations
607 Views
8 Pages

Preparation of an Fe80P14B6 Bulk Nanocrystalline Alloy via Solidification from a Molten Alloy at Deep Undercooling

  • Xiaoming Chen,
  • Tuo Wang,
  • Zhe Zhang,
  • Yuluo Li,
  • Mingming Wang,
  • Kuang Lv,
  • Guigen Wu,
  • Xiaoli Wang,
  • Zhangyin Li and
  • Xidong Hui

19 March 2025

Using fluxing technology, molten Fe80P14B6 alloy achieved significant undercooling (ΔT). Experimental results demonstrate that the solidified morphologies of the Fe80P14B6 alloy vary considerably with ΔT. At ΔT = 100 K, the microstr...

  • Article
  • Open Access
775 Views
14 Pages

19 March 2025

To develop liner materials with improved toughness, this study combines molecular dynamics simulations and experimental testing to investigate the effect of different mass ratios (10/0, 7/3, 6/4, 4/6, 3/7, and 0/10) of high-density polyethylene (HDPE...

  • Article
  • Open Access
655 Views
15 Pages

19 March 2025

This study investigated the dynamic behavior of pressurized pipelines under impact loads in various burial environments. A total of 60 tests were conducted using a drop-weight impact testing apparatus, with high-speed cameras and sensors used to coll...

  • Article
  • Open Access
689 Views
21 Pages

Description of the Lubricant Behavior Based on the Theory of Elasto-Viscoplastic

  • Yuriy O. Nosov,
  • Anna A. Kamenskikh and
  • Anastasia P. Bogdanova

19 March 2025

The aim of the work is to provide a mathematical description of the lubricant’s behavior model used in sliding bearings of bridge structures. It was previously established that the Maxwell model does not correctly describe the lubricant’s...

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Materials - ISSN 1996-1944