Materials Literature
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We show that chalcogenide glass As38Se62 capillaries can act as efficient waveguides in the whole mid-infrared–terahertz (THz) spectral range. The capillaries are fabricated using a double crucible drawing technique. This technique allows to produce glass capillaries with wall thicknesses in the range of 12 to…
We are reporting new dimeric units of basic carboxylates bearing the {Fe(III)(2)M(II)O} motif for M = Co and Ni, covalently bound through the tetradentate bridging (LL) 2,2'-azopyiridine (azpy) and 2,3-di(2-pyridyl)quinoxaline ligands (dpq). We structurally characterized the hexanuclear clusters, and their magnetic pr…
Complementing our work on the experimental measurements and DFT calculations of the NMR Fermi contact shifts for 7 Li, 31 P, and 1 H in the tavorite LiFePO 4 ·OH and homeotypic FePO 4 ·H 2 O, LiMnPO 4 ·OH, MnPO 4 ·H 2 O, and VPO 4 ·H 2 O phases, we aim to understand the origin of those shifts. Using FP-LAPW calculatio…
Abstract It is known that the random orientation of crystallites in polycrystalline Bi 0.5 Sb 1.5 Te 3 reduces its thermoelectric power factor. An efficient method for growing ordered bulk polycrystalline Bi 0.5 Sb 1.5 Te 3 was used and the enhancement of thermoelectric power factor was demonstrated. For comparison, s…
We fabricated infrared wire-grid polarizers with an antireflection (AR) grating structure by the simultaneous imprinting on both sides of a low-toxicity chalcogenide glass (Sb–Ge–Sn–S system). Silicon carbide and glassy carbon plates were used as molds for the direct glass imprinting. A wire-grid polarizer of 100-nm-t…
A composite of bithiazole–benzothiadiazole-based semiconducting conjugated copolymer and gold nanoparticles (AuNPs) was prepared in situ and characterized by transmission electron microscopy, thermogravimetry, and UV–vis absorption spectroscopy. The polymer interacts with the nanoparticle surface through the nonbondin…
Atom-resolved non-contact atomic force microscopy (NC-AFM) studies of the magnesium aluminate (MgAl(2)O(4)) surface have revealed that, contrary to expectations, the (100) surface is terminated by an aluminum and oxygen layer. Theoretical studies have suggested that hydrogen plays a strong role in stabilizing this sur…
We performed scanning tunneling microscopy/spectroscopy (STM/S) on the edges of monolayer graphene islands grown on Ir(111). Constant current STM images reveal that the atomic corrugation at the graphene edges correlates with the moir\'e pattern of graphene on Ir(111). The graphene islands terminate with a zigzag edge…
We elucidate the supramolecular organization in the form of microsize fibrils of gels formed by a l-Valine peptidomimetic compound. Analysis was based on circular dichroism spectroscopies, vibrational (VCD) and electronic (CD), supported by microscopy (atomic force and scanning electron). We show how the VCD spectra g…
In this letter, an 8-Mb phase-change random access memory (PCRAM) chip has been developed in a 130-nm 4-ML standard CMOS technology based on a Resistor-on-Via-stacked-Plug (RVP) storage cell structure. This phase-change resistor is formed after CMOS logic fabrication. PCRAM can be embedded without changing any logic d…
Abstract Polycrystalline ZnS samples are studied using X‐ray diffraction and scanning electron microscopy including electron backscatter diffraction (EBSD). The material is industrially produced by a chemical vapor deposition process (CVD). Near the substrate, crystal growth leads to grains smaller than 50 μm in the c…
Abstract Organometallic compounds are a general class of metal precursors that are used for chemical vapor deposition of metal films and nanoparticle nucleation in the gas phase. While there have been numerous studies of metal film deposition, there exist far fewer studies of how organometallic vapors are dissociated…
Graphene, an extended conjugated system, is an efficient fluorescence quencher for various organic dyes and quantum dots. In this Letter, rhodamine 6G (R6G) was used as a typical representative probe molecule to investigate the interaction between graphene and cationic organic dye. The as-prepared graphene oxide and g…
The surfaces of implantable biomaterials improving biocompatibility and bioinertness are critical for new application of bioimplantable devices. Diamond-like carbon (DLC) film is a promising biomaterial with use for coating bioimplantable devices because of its good biocompatibility, bioinertness, and mechanical prope…
This paper illustrates how the tools of equilibrium statistical mechanics can help to describe a far-from-equilibrium problem: the jamming transition in frictionless granular materials. Edwards ideas consist of proposing a statistical ensemble of volume and stress fluctuations through the thermodynamic notion of entro…
We show here that mixed-valence (MV) magnetic molecules with a significant electron delocalization are extremely sensitive to an external electric field. In particular, we focus on the symmetric many-electron MV binuclear complexes that are on the borderline between Robin and Day classes II and III. In these molecules…
We demonstrate that confinement-induced intervalley splittings of electron energy levels in PbSe and PbS nanocrystals are sensitive to the arrangement of atoms within a nanocrystal. The splittings are strongly suppressed for stoichiometric nanocrystals of ${T}_{d}$ point symmetry lacking a center of inversion as oppos…
Multifunctional behavior of microcrystalline cellulose (MCC) was investigated in a typical solution-grade styrene butadiene rubber (S-SBR)-based tread compound in connection with its potential as reinforcing filler as well as processing aid. Optimum physical properties were obtained when the loading of MCC was at 10%…
Growing attention has been paid to the innovation of ecological products, prompted by rising environmental concerns. As a natural polymer, thermoplastic sago starch has been regarded as an alternative material to petroleum-based plastic owing to its availability, cost, and biodegradability. In order to produce thermop…
The development of innovative carbon-based materials can be greatly facilitated by molecular modeling techniques. Although the Reax Force Field (ReaxFF) can be used to simulate the chemical behavior of carbon-based systems, the simulation settings required for accurate predictions have not been fully explored. Using t…