Materials Literature
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Bulk tellurium (Te) is composed of one-dimensional (1D) helical chains which have been considered to be coupled by van der Waals (vdW) interactions. However, based on first-principles density-functional theory calculations, we here propose a different bonding nature between neighboring chains: i.e., the helical chains…
An accurate method is developed to extract the spin-orbit effective fields through analysis of the results of harmonic Hall voltage measurements by deriving detailed analytical equations, in which both the z-component of the applied magnetic field and the second-order perpendicular magnetic anisotropy are taken into a…
We report the synthesis of polycrystalline (poly)-SiGe alloy thin films through solid state reaction of Si/Ge multilayer thin films on Si and glass substrates at low temperature of 500 °C. The pristine thin film was deposited using electron beam evaporation with optimized in-situ substrate heating. Our results show th…
Gallium arsenide (GaAs) is the widest used second generation semiconductor with a direct band gap and increasingly used as nanofilms. However, the magnetic properties of GaAs nanofilms have never been studied. Here we find by comprehensive density functional theory calculations that GaAs nanofilms cleaved along the <1…
Two ultrasmall gold clusters, Au <sub>13</sub> and Au <sub>8</sub> , were identified as a distorted <italic>I</italic> <sub>h</sub> icosahedral Au <sub>13</sub> and edge-shared “core + 4 <italic>exo</italic> ” structure Au <sub>8</sub> S <sub>2</sub> cores, respectively. They showed interesting luminescence and electr…
Four coordination polymers, namely, [Zn(HL1)(L2) 0.5 ]·H 2 O ( 1 ), [Cd(HL1)(L2) 0.5 ]·H 2 O ( 2 ), [Zn(L1)(L3) 0.5 ]·H 2 O ( 3 ), and [Cd(L1)(L3) 0.5 ] ( 4 ) (H 3 L1 = (3,5-dicarboxyl-phenyl)-(4-(2′-carboxyl-phenyl)-benzyl)ether, H 2 L2Cl 2 = 1,1′-bis(4-carboxy-benzyl)-4,4′-bipyridinium dichloride, and L3Cl 2 = 1,1′-…
We study the band-edge exciton fine structure and in particular its bright-dark splitting in colloidal semiconductor nanocrystals by four different optical methods based on fluorescence line narrowing and time-resolved measurements at various temperatures down to 2 K. We demonstrate that all these methods provide cons…
Designing chiral materials to manipulate the biological activities of cells has been an important area not only in chemistry and material science, but also in cell biology and biomedicine. Here, we introduce monolayer plasmonic chiral Au nanoparticle (NP) films modified with L- or D-penicillamine (Pen) to be developed…
Although cancer is one of the most dangerous and the second most lethal disease in the world, current therapy including surgery, chemotherapy, radiotherapy, etc., is highly insufficient not in the view of therapy success rate or the amount of side effects. Accordingly, procedures with better outcomes are highly desira…
Abstract It is reported that electron doped n‐type SnSe 2 nanoplates show promising thermoelectric performance at medium temperatures. After simultaneous introduction of Se deficiency and Cl doping, the Fermi level of SnSe 2 shifts toward the conduction band, resulting in two orders of magnitude increase in carrier co…
Functionally graded membranes with finely tuned COF gradients were fabricated for highly selective water permeation.
Herein, magnetic wood was successfully prepared by in situ synthesizing Fe 3 O 4 in wood, through coprecipitation chemical interactions. A facile impregnation method, vacuum impregnation followed by pressure impregnation, was introduced to transport the adequate amount of ferric salt precursor and to further shorten t…
Mussel-inspired hydrogels held together by reversible catecholato-metal coordination bonds have recently drawn great attention owing to their attractive self-healing, viscoelastic and adhesive properties together with their pH-responsive nature. A major challenge in these systems is to orchestrate the degree of catech…
Conductive porous structures are favorable as active electrode materials for energy storage by boosting the active sites and specific surface area but have been rarely achieved in transition metal dichalcogenides. Here, we developed acid-assisted exfoliation for the first time, to successfully exfoliate TaS 2 into ver…
Abstract Composite cathodes of solid oxide fuel cells (SOFCs) are normally fabricated by mechanical mixing of electronic‐ and ionic‐conducting phases. Here, a dual‐phase SOFC cathode, composed of perovskite PrNi 0.5 Mn 0.5 O 3 (PNM) and exsoluted fluorite PrO x particles, produced in situ through a glycine–nitrate sol…
Abstract The introduction of surface functional groups onto graphene can provide additional pseudocapacitance for supercapacitors. However, the compensation for the loss of electrical conductivity arising from the disruption of the conjugated system remains a big challenge. Here, a novel strategy is reported for the d…
Transition metal chalcogenides (TMCs) embedded with a carbon network are gaining much attention because of their high power capability, which can be easily integrated to portable electronic devices. Facile chemical route has been explored to synthesize hexagonal structured VS 2 nanoparticles onto multiwalled carbon na…
Targeting cancer cells without injuring normal cells is the prime objective in treatment of cancer. In this present study, solvothermal and wet chemical precipitation techniques were employed to synthesize iron oxide (IO), hydroxyapatite (HAp), and hydroxyapatite coated iron oxide (IO-HAp) nanoparticles for magnetic h…
On-surface synthesis is a powerful route toward the fabrication of specific graphene-like nanostructures confined in two dimensions. This strategy has been successfully applied to the growth of graphene nanoribbons of diverse width and edge morphology. Here, we investigate the mechanisms driving the growth of 9-atom w…
Abstract The synthesis and characterization of UiO‐type metal–organic framework nanoparticles (NMOFs) composed of Zr 4+ ions bridged by 2,2′‐bipyridine‐5,5′‐dicarboxylic acid ligands and the postmodification of the NMOFs with Cu 2+ ions are described. The resulting Cu 2+ ‐modified NMOFs, Cu 2+ ‐NMOFs, exhibit peroxida…