Crystals, Volume 13, Issue 2

This study presents broadband ultraviolet photodetectors (BUV PDs) based on Ga₂O₃/GaN core-shell micro-nanorod arrays with excellent performance. Micro-Nanoarchitectonics of Ga₂O₃/GaN core-shell rod arrays were fabricated with high-temperature oxidiz...

The fracture and crack growth of materials can be practically and conveniently predicted through numerical analysis and linear elastics fracture mechanics. On this basis, the current study aims to present experimental work supported by a numerical te...

New triple molybdates Li_xNa_1−xCaLa_0.5(MoO₄)₃:Er³⁺0.05/Yb³⁺0.45 (x = 0, 0.05, 0.1, 0.2, 0.3) were manufactured successfully using the microwave-assisted sol-gel-based technique (MAS). Their room-temperature crystal structures were determined in...

For the first time, the stability of KCl single crystals doped with sodium impurity ions was analyzed via the optical absorption and luminescence methods. Using the characteristic bands of optical absorption, as well as of X-ray and tunnel luminescen...

Plasmonic hydrogen gas sensors have become widely used in recent years due to their low cost, reliability, safety, and measurement accuracy. In this paper, we designed, optimized, and fabricated a palladium (Pd)-coated nano-grating-based plasmonic hy...

It is not at all surprising that the topic of non-covalent interactions, a key pillar of supramolecular chemistry, has seen interest grow enormously within the last decade [...]

This work demonstrates how the addition of few-layer graphene (FLG) influences the processability and mechanical properties of the mixed polyolefin waste stream (R-(PE/PP)). Three different types of compounds were investigated: (1) R-(PE/PP) with FLG...

In this paper, a compact design and new structure of bowtie antenna with dual-band characteristics for the 5G and public safety bands in intelligent transport systems (ITS) is presented. The antenna consists of a double-sided bowtie radiating patch w...

The rapid worldwide spread of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has created a series of problems. Detection platforms based on graphene field-effect transistors (GFETs) have been proposed to achieve a rapid diagnosis of...

There is a growing interest in High Entropy Alloys (HEAs) due to their outstanding mechanical properties. Most simulation studies have focused on face-centered cubic (fcc) HEAs; however, bcc HEAs can offer a larger elastic modulus and plastic yieldin...

Titanium oxyfluoride (TiOF₂) is a metastable product that can be obtained in a fluorine-rich environment. This material can also be a valuable precursor in the synthesis of titanium(IV) oxide (TiO₂). However, the effect of TiOF₂ morphology on the phy...

Retained austenite (RA) transformation and its role in the mechanical properties of three low-carbon micro-alloyed quenching and partitioning (Q&P) steels was investigated utilizing in situ tensile tests and electron microscopy. Meanwhile, RA&rsq...

Magnetic nanoparticles embedded into semiconductors have current perspectives for use in semiconducting spintronics. In this work, 40 keV Fe⁺ ions were implanted in high fluences of (0.5 ÷ 1.5) × 10¹⁷ ion/cm² into an oxide semiconductor...

The aim of the current work is to investigate the effect of SiC particle weight percent and rolling passes on Al/Cu/SiC laminated composites, fabricated by accumulative roll-bonding (ARB) and cross-accumulative roll-bonding (CARB) processes. The opti...

Fe-30Mn-0.05C steel specimens with cold-rolled, partially recrystallized, fine-grained, and coarse-grained microstructures were fabricated by means of 80% cold rolling followed by annealing at 550–1000 °C. The initial and deformed microstru...

Protein crystals are versatile nanostructured materials that can be readily engineered for applications in nanomedicine and nanobiotechnology. Despite their versatility, the small size of typical individual protein crystals (less than one cubic mm) p...

Due to their outstanding performance in optoelectronic applications, lead-based halide perovskites (LHPs) have attained significant attention from scientists worldwide [...]

Since the end of the last century, in which semiconductor lasers were fast developing, this kind of laser and its applications have greatly improved our world [...]

Wide bandgap semiconductors doped with transition metals are attracting significant attention in the fabrication of dilute magnetic semiconductor devices (DMSs). The working principle of DMSs is based on the manipulation of the electron spin, which i...

The stability and mechanical and thermodynamic properties of Al₁₁RE₃ intermetallics (RE = Sc, Y and lanthanide La-Lu) have been investigated by combining first-principles and Debye model calculations. It was found that the formation enthalpies of the...

The reaction of the Ni/X interfaces (X = Si or Cr) with O₂⁺ ions at low energy (3 keV) was studied using X-ray photoelectron spectroscopy (XPS) and factor analysis (FA). It was found that low ion doses lead to the formation of a NiO thin film on the...

Two new Co(II) and Cu(II) azido complexes with 4-picoline (4-Pic) and pyridine-2-carboxaldoxime (HAld) were synthesized by self-assembly of the organic ligand and the M(II) nitrate in the presence of azide as a co-ligand. Their structures were determ...

Magnesium (Mg) and its alloys are considered an ideal material for aerospace, medical, energy, and automotive purposes, because of their low density and high specific strength. Researchers are interested in AZ alloys because of their superior flow ch...

Two Ni(II) complexes with the formula [{Ni(dppf)}₂{(L1)₂}](PF₆)₂ (Ni-I) and [{Ni(dppe)}₂{(L1)₂}](PF₆)₂ (Ni-II) were prepared by reacting [Ni(dppf)Cl₂] and [Ni(dppe)Cl₂] (dppf = 1,1′-Bis-(diphenylphosphino)ferrocene; dppe = 1,2-Bis-(diphenylphos...

A symmetrical pyrene derivative chemical structure was prepared by a classical synthetic method such as the Sonogashira cross-coupling reaction. The molecular structure of the product was characterised in detail by nuclear magnetic resonance (NMR), m...

In the present work, a new heterogeneous catalyst Pd-NHC@Eu-BCI was synthesized by introducing N-heterocyclic carbene–palladium active sites into a 2D coordination polymer [Eu(BCI)(NO₃)₂H₂O]_n (Eu-BCI) based on a 1,3-bis(carboxymethyl)imidazoliu...

In the present project, fructose-stabilized gold, silver and gold–silver bimetallic colloids have been synthesized by the electrochemical reduction of HAuCl₄·3H₂O (Au precursor) and AgNO₃ (Ag precursor), employing the atmospheric pressur...

In this paper, the chemical composition and spectroscopy of 38 violet-red to orange-red spinel samples were analyzed by energy dispersive X-ray fluorescence spectrometer and UV-visible spectrophotometer, based on CIE LAB color space, to explore the e...

The Special Issue “Novel ZnO-Based Nanostructures: Synthesis, Characterization and Applications” is a collection of 13 papers, including 3 review papers and 10 original articles dedicated to both experimental research works and numerical...

This paper emphasizes that the furnace pressure, crucible rotation, and pulling rate have important effects on interstitial oxygen (O_i) concentrations and micro-defects during growth in a Czochralski single-crystal silicon (CZ-Si) growth furnace. Sin...

Single-crystal X-ray structure determinations are reported for four lanthanide complexes, [Dy(bipy)₂Cl₂(OH₂)₂]Cl^.H₂O (bipy = 2,2′-bipyridine), 1; [La₂(phen)₂(O₂CCH₃)₄(NO₃)₂] (phen = 1,10-phenanthroline), 2; [Lu(terpy)(O₂CCH₃)₃]^.NaNO₃ (terpy = 2...

In this study, hybrid AA1050/Al₂O₃/TiO₂ composites have been produced via combined liquid casting and powder metallurgy techniques. Degassing was utilized to improve the wettability of molten aluminum alloys, and then successful bonding was generated...

The aim of this study was to investigate the crystal structure and bandgap of the emerging material Cu₄TiSe₄ using both theoretical and experimental methods. We synthesized the title compound via solid-state synthesis from elements. The occurrence of...

A novel scheme was developed for a diode-pumped passively Q-switched Nd:YVO₄/KGW Raman laser at 589 nm with a diode-to-orange conversion efficiency reaching 11.4%. The compact near-concentric cavity was designed to achieve the criterion of good passi...

In this study, effective and environmentally friendly methods were used to achieve the synthesis of silver nanoparticles (Ag NPs) by an aqueous plant extract. The Ag NPs were synthesized via Zingiber officinale plant extract that acted as a reducing...

The number and the strength of acid sites in catalysts have paramount importance on their efficiency. In zeolites chemistry, increased content of framework Al in zeolites gives a higher number of strong acid sites. Their strength can be a disadvantag...

Antibiotics are pervasive contaminants in aqueous systems that pose an environmental threat to aquatic life and humans. Typically, antibiotics are developed to counteract bacterial infections; however, their prolonged and excessive use has provoked u...

The Pipper nigram (P. nigram) leaf extract was used for the biosynthesis of copper oxide nanoparticles (CuO NPs) and the successful formation of the resultant product was confirmed through several physicochemical techniques. The chemical structure an...

The deformation mechanism of a medium-Mn advanced high strength steel (AHSS) over a temperature range from 25 °C to 400 °C has been studied. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used to characteri...

Photoalignment technology enables macroscopic alignment of liquid crystalline molecules and their aggregates in a non-contact process by irradiating photo-responsive liquid crystalline compounds with linearly polarized light. Because photoalignment t...

To investigate the crystallization of DNTF in modified double-base propellants, glycidyl azide polymer (GAP) was used as the coating material for the in situ coating of DNTF, and the performance of the coating was investigated to inhibit the crystall...

The surface of Inconel 625, a nickel-base alloy, was strengthened by vacuum electron beam scanning technology. The evolution of its microstructure was analyzed by electron backscatter diffraction (EBSD) and the friction and wear tester (RETC). The re...

Functional inorganic materials are an indispensable part of innovative technologies, which are essential for development in many fields of industry [...]

The compatibility of memristor materials with advanced complementary metal-oxide-semiconductor (CMOS) technology is a key factor for microelectronics element base manufacturing. Therefore, we continued studying previously fabricated CMOS-compatible N...

The CuCl binuclear complexes were synthesized with phenyl-1H-pyrazole-1-carbodithioate (L¹) and phenyl-3-methyl-1H-pyrazole-1-carbodithioate (L²) ligands. The complexes were isolated as crystalline material in a reasonable quantity. The complexes wer...

The deformation mechanism and texture evolution of AZ31 Mg alloy compressed in three different directions at room temperature were studied, and the relationship between the two was compared through experiments and viscoplastic self-consistent (VPSC)...

The kagome lattice consisting of corner-sharing triangles has been studied in the context of quantum physics for more than seventy years. For the novel discovered kagome superconductor CsV${}_3$Sb${}_5$, identifying the pairing symmetry of order parameter rema...

The traditional electrochemical deposition process used to prepare Cu(In, Ga)Se₂ (CIGS) thin films has inherent flaws, such as the tendency to produce low-conductivity Ga₂O₃ phase and internal defects. In this article, CIGS thin films were prepared u...

Waelz slag is an iron-containing waste generated during electric arc furnace (EAF) dust processing in a rotary kiln named the Waelz process. This study focuses on the reduction smelting of the Waelz slag to produce iron-based alloy. The thermodynamic...

The integration of a flow-through cell into a Mach–Zehnder interferometer offers the possibility to study the dissolution of crystals in detail. The influence of flow on the displacement velocity of a specific crystal facet and the distribution...