Materials Literature
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Sato S., Tamotsu N., and Mann D.G. 2013. Morphology and life history of Amphora commutata (Bacillariophyta) I: the vegetative cell and phylogenetic position. Phycologia 52: 225–238. DOI: 10.2216/12–072.1Amphoroid diatoms are recognized in the light microscope by their strongly dorsiventral frustules; their raphe syste…
Boron precipitation process and its effect on electronic properties of p-type bulk nanostructured silicon germanium (Si0.8Ge0.2) compared with large grain polycrystalline Si0.8Ge0.2 have been studied. The structures were synthesized and their thermoelectric properties were measured versus temperature during heating an…
The overlay, CDU and focus requirements for the 20nm node can only be met using a holistic lithography approach whereby full use is made of high-order, field-by-field, scanner correction capabilities. An essential element in this approach is a fast, precise and accurate in-line metrology sensor, capable to measure on…
Eu(2+) and Mn(2+) codoped, white-emitting Na(Sr,Ba)PO(4) phosphors are prepared, and their emission properties, especially for thermal stability, are thoroughly investigated. The thermal quenching and Eu(2+)/Mn(2+) energy transfer efficiency are totally different in the ratio of alkaline earth metals in host compositi…
Abstract Fabric strain sensors based on intrinsically conducting polymers (ICPs) have been extensively studied recently owing to their ease of preparation, unique properties and many potential applications. Research on ICP‐based fabric strain sensors, including fabrication, performance and applications of the sensors,…
Herein we report a simple, one-pot, surfactant-free synthesis of 3D Ag microspheres (AgMSs) in aqueous phase at room temperature. The 3D AgMSs act as supports to fix the gold nanoparticles (GNPs) in 3D space via the interaction between the carboxyl groups of GNPs and the Ag atoms of AgMSs. The ensemble of AgMSs@GNPs w…
We have synthesized water-stable polyaniline nanoparticles coated with triarmed polyethylene glycol chains using a solvent-shift method and confirmed their colloidal size and aqueous solubility. Furthermore, we have demonstrated that the polyaniline nanoparticles can be doped with biological dopants to produce distinc…
Novel luminescent boron quinolate block copolymers with pyridine functionalities were prepared via RAFT polymerization and employed as building blocks for assembled nanostructures. In selective solvents, the block copolymers self-assembled into vesicles, spherical and extended branched aggregates. Quaternization react…
We have conducted a study on the nonlinear absorption properties of nitrogen-vacancy color centers in processed nanodiamonds. Their two-photon (2P) spectra disclose distinguishable features for the two charge states in which the center exists. The 2P absorption cross section is found to be between 0.1 and 0.5 GM in th…
Ultra high frequency (UHF) partial discharge sensors are widely used for condition monitoring and defect location in the insulation systems of high voltage equipment. Designing sensors for specific applications often requires an iterative process of manufacture, test, and mechanical modifications. This paper demonstra…
Abstract To date, only a few nanosystems have been investigated as T1 MRI‐CT dual contrast agents. The T1 MRI‐CT dual functionality of a material depends on its longitudinal water‐proton relaxivity (r1) and X‐ray absorption strength. We explored Gd(IO3)3·2H2O nanomaterial because Gd is the most powerful element for T1…
Measurements of contact angle of ethanol–water solutions were performed on crystalline silicon and on mesoporous silicon films with porosities up to ∼72%. Water contact angles of 44° and 76° were measured for untreated and HF-dipped crystalline silicon, respectively, consistent with previous studies. The contact angle…
Abstract The incorporation of europium polyoxometalates into silica nanoparticles can lead to a biocompatible nanomaterial with luminescent properties suitable for applications in biosensors, biological probes, and imaging. Keggin‐type europium polyoxometalates Eu(PW11)x (x = 1 and 2) with different europium coordinat…
This Communication reports that needle-like supercrystalline colloidal particles can be synthesized through anisotropy-driven self-assembly of 1,12-dodecanediamine-functionalized CdSe/CdS core/shell nanorods. The resulting superparticles exhibit both 1D lamellar and 2D hexagonal supercrystalline orders along direction…
Mn5Ge3−xAlx ribbons with x=0,0.5, and 1 were prepared by single roller melt-spinning method. Textured structures were observed in these ribbons as a result of fast cooling, with highly ordered columnar grains perpendicular to the surface. The magnetocaloric effect and critical behavior were investigated by dc magnetiz…
A gradient Si-rich oxide multilayer (GSRO-ML) deposition structure is proposed to achieve super-high density Si quantum dot (QD) thin film formation while preserving QD size controllability for better photovoltaic properties. Our results indicate that the Si QD thin film using a GSRO-ML structure can efficiently incre…
In a Letter by Leb\`egue et al. [Phys. Rev. Lett. 105, 196401 (2010)] describing benchmark ab initio adiabatic connection, fluctuation dissipation calculations under the random-phase approximation (ACFD-RPA) of graphite, it was demonstrated that the dispersion energy of uniaxially stretched graphite obeyed a van der W…
The organization of magnetic nanorods in microphase-separated diblock copolymers composed of poly(styrene-b-2-vinylpyridine) (PS-PVP) as a function of rod length and rod concentration was investigated using both transmission electron microscopy and small-angle X-ray scattering. Our results reveal that the nanorods wer…
The improvement of power conversion efficiency, especially current density (Jsc), for nanocrystal quantum dot based heterojunction solar cells was realized by employing a trenched ZnO film fabricated using nanoimprint techniques. For an optimization of ZnO patterns, various patterned ZnO films were investigated using…
The study of new materials for transparent electrodes or new heterojunctions made of 2D materials combinations is a very active research topic. Challenges to overcome are the modulation of the optoelectronic properties of such materials to achieve competitive photovoltaic devices. In this work, graphene oxide was redu…