Materials Literature
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Nitrogen-vacancy defect centers (NV) contained in nanodiamonds (NDs) are a promising candidate in quantum information processing and single photon sources due to the capability of controlling their assembly on various surfaces. However, their detection with traditional optical techniques becomes challenging when probi…
ABSTRACT Large amount of work has been published on the tacticity‐properties relationship of isotactic polypropylene (iPP). However, the stereo‐defect distribution dependence of morphology and mechanical properties of β‐nucleated iPP (β‐iPP) is still not clear. In this study, two different iPP resins (PP‐A and PP‐B) w…
Although low energy density and low voltage tolerance limit the effectiveness of double-layer capacitors (DLCs) as a storage unit, many different lumped-parameter equivalent circuits have been recently proposed for the DLC. The purpose of this work is to predict equivalent-circuit parameters for DLC modules consisting…
The fine structure of the triple line for water droplets deposited on porous polymer substrates was investigated. Substrates were obtained with the breath-figures self-assembly. Water droplets demonstrated the pronounced Cassie-Baxter wetting regime. The triple line was imaged with environmental scanning electron micr…
An effective Hamiltonian scheme is used to reveal the properties of a multidomain structure in BiFeO${}_{3}$ consisting of alternating domains that are initially made of two phases, namely, $R3c$ (ferroelectric with antiphase oxygen octahedral tilting) versus $Pnma$ (antiferroelectric with in-phase and antiphase oxyge…
An inclusion supramolecular polymer composed of amylose and poly( l ‐lactide) (PLLA) is successfully synthesized by phosphorylase‐catalyzed enzymatic polymerization using a maltoheptaose‐functionalized poly( l ‐lactide) (G 7 ‐PLLA) as a primer–guest conjugate substrate according to vine‐twining polymerization. The pr…
We report on the fabrication of photodiodes, employing rectifying contacts based on ternary (Mg,Zn)O thin films in wurtzite modification. We utilize a concept for forming a compositionally graded active layer, allowing the design of energy-selective, monolithic, and multichannel ultraviolet metal-semiconductor-metal p…
ABSTRACT Microencapsulation is becoming increasingly important in the food, cosmetics, and medicinal industries due to its potential for stabilization and delivery of volatile and delicate compounds. Novel food‐safe techniques for encapsulating oil in silk biomaterials using emulsion‐based processes that exploit silk'…
Anion-responsive π-conjugated compounds having chiral alkyl chains were synthesized. Circular dichroism (CD) and circularly polarized luminescence (CPL) were observed in the solution-state assemblies of the chiral anion receptors and those of their anion complexes as salts of a planar triazatriangulenium cation. The C…
A custom made non-equilibrium atmospheric pressure argon plasma jet was developed for the deposition of PEG like coatings in open-air for cell repellent applications. OES and electrical measurements were performed to characterize the discharge. The emission of the N2 (C3Πu–B3Πg) was followed in order to minimize the a…
To explore poly(phenylacetylene) (PPA) derivatives as the dispersing agent of single-walled carbon nanotubes (SWNTs), we synthesized a new series of side chain PPAs (denoted as PPA- m, m = 2, 1, 0). The side chains of PPA- m bear a soluble 3,4,5-tris(octyloxy)phenyl moiety at the end, and a biphenyl ( m = 2), a phenyl…
The success of fabricating single layer graphene and silicon nanofilm (could be as thin as single layer so far) has triggered enormous interest in exploring their unique physics and novel applications. An intuitive idea is to investigate what happens if we construct a heterostructure composed of these two sheets. In t…
In vivo analysis poses higher requirements about the biocompatibility, selectivity and speed of analytical method. In this study, an in vivo fast equilibrium microextraction method was developed with a biocompatible core-sheath electrospun nanofiber membrane sandwiched within a microfluidic unit. The polystyrene/colla…
Observation of the plasmonic Rashba effect manifested by a polarization helicity degeneracy removal in a surface wave excitation via an inversion asymmetric metamaterial is reported. By designing the metasurface symmetry using anisotropic nanoantennas with space-variant orientations, we govern the light-matter interac…
A high-pressure cell for in situ X-ray reflectivity measurements of liquid/solid interfaces at hydrostatic pressures up to 500 MPa (5 kbar), a pressure regime that is particularly important for the study of protein unfolding, is presented. The original set-up of this hydrostatic high-pressure cell is discussed and its…
Precision quantum Hall resistance (QHR) measurements were performed on large-area epitaxial graphene device at temperature T = 1.5 K and at magnetic fields B from 8 T down to 2.5 T, that is much lower than typically used in precision QHR measurement. QHR was measured using cryogenic current comparator resistance bridg…
We demonstrate fabrication of a Schottky junction diode with direct growth graphene on n-Si by the solid phase reaction approach. Metal-assisted crystallization of a-C thin film was performed to synthesize transfer-free graphene directly on a SiO 2 patterned n-Si substrate. Graphene formation at the substrate and cata…
Luminescent clustogelator: Hybrid gelators with a [Cu4I4] cluster core functionalized by cholesteryl derivatives allow solvent gelation through the formation of a globular network (see figure). The resulting gels display thermochromic and rigidochromic luminescence properties, the latter being used to probe the dynami…
In this study, a fluorene-functionalized aliphatic cyclic carbonate monomer, spiro[fluorene-9,5′-[1,3]-dioxan]-2′-one (F-TMC) was synthesized, and organo-catalytic ring opening polymerization of F-TMC was explored with 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU). By using mPEG-OH with a variety of different molecular wei…
The primary impediment to continued downscaling of traditional charge-based electronic devices in accordance with Moore's law is the excessive energy dissipation that takes place in the device during switching of bits. One very promising solution is to utilize multiferroic heterostructures, comprised of a single-domai…