Materials Literature
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We report on the effect of exposure to atmospheric conditions on the THz conductivity of thin films of the topological insulator Bi2Se3. We find (1) two contributions of mobile charge carriers to the THz conductivity immediately after growth and (2) the spectral weight of the smaller of these decays significantly over…
We provide conclusive evidence of nonmonotonic mechanical behavior in the extension of long-chain branched polymer melts. While nonmonotonic behavior is known to occur for solids, for the case of polymeric melts, this phenomenon is in direct contrast with current theoretical models. We rule out the possibility of the…
A semitransparent white organic light-emitting diode (WOLED) is produced based on a blue phosphorescence from iridium(III)[bis(4,6-difuorophenyl)-pyridinato-N,C2] picolinate and an orange phosphorescence from bis(2-(9,9-diethyl-9H-fluoren-2-yl)-1-phenyl-1H-benzoimidazol-N,C3) iridium(acetylacetonate). In this work, a…
Recently soft fiber mats electrospun from solutions of Barium Titanate (BT) ferroelectric ceramics particles and polylactic acid (PLA) were found to have large (d33 ∼ 1 nm/V) converse piezoelectric signals offering a myriad of applications ranging from active implants to smart textiles. Here, we report direct piezoele…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Thomas Schweizer, Werner Schmidheiny; A cone-partitioned plate rheometer cell with three partitio…
We have investigated the marked change in the magnetic properties of CeRu2Al10 induced by a small amount of Rh substitution [Ce(Ru0.95Rh0.05)2Al10]. The magnetic susceptibility along the \(a\)-axis (χa) shows a large decrease with decreasing temperature after showing a sharp peak at \(T_{0}=24\) K and the high field m…
Commercial Erbium doped silica fibers fabricated through the modified chemical vapor deposition and direct nanoparticle deposition processes where${\rm Er}^{3+}$concentration is varied in a wide range are characterized by means of analyses of${\rm Er}^{3+}$fluorescence decay kinetics and nonlinear absorption coefficie…
The bipolar resistive switching characteristics have been investigated in the Co:BaTiO3 films deposited by sol-gel method. It has been demonstrated that such devices can be used as resistive random access memory cells without required electroforming. Ohmic transport and space charge limited current mechanism are domin…
Protein denaturation in highly concentrated urea solution is a well-known phenomenon. The counteracting effect of a naturally occurring osmolyte, trimethylamine-N-oxide (TMAO), against urea-conferred protein denaturation is also well-established. However, what is largely unknown is the mechanism by which TMAO countera…
Currently, the purified higher C 60 fullerene adducts come into use as electron-acceptor materials in organic solar cells. As known, the number of regioisomeric structures grows up rapidly with the increase of the number of addends in C 60 derivatives. To make the computational description of their diversity, an accur…
The H-acid dye intermediate was successfully attached to the SBA-15 mesoporous silica surface in a two-step modification process. Synthesized materials were characterized using several techniques including Fourier transform infrared spectroscopy, N2 adsorption–desorption measurements, small-angle X-ray scattering, tra…
Flux pinning mechanism of graphene oxide (GO) doped MgB2 has been systematically studied. In the framework of the collective pinning theory, a B-T phase diagram has been constructed. By adjusting the GO doping level, the pinning mechanism in MgB2 transformed from transition temperature fluctuation induced pinning, δTc…
In this study, a photobioelectrochemical sensor for the detection of sarcosine is reported. For this purpose, CdSe/ZnS quantum dot (QD) modified electrodes are prepared and the oxygen-dependent photocurrent is evaluated under illumination. By using sarcosine oxidase (SOD), the photocurrent can be suppressed because of…
Nanostructured metal oxide semiconductors are ideally suited for their integration in different devices due to their high thermal and mechanical stability, unique electronic characteristics, and low-cost fabrication. The modification of their surface allows the design of heterostructures with novel properties. In this…
Angle-resolved photoemission spectroscopy studies of the protected surface states in the topological insulator Bi${}_{2}$Te${}_{3}$ have revealed the existence of an important hexagonal-warping term in its electronic band structure. This term distorts the shape of the Dirac cone from a circle at low energies to a snow…
There are many types of dendrimers used as nanomolecules for gene delivery but there is still an ongoing search for ones that are able to effectively deliver drugs to cells. The possibility of gene silencing using siRNA gives hope for effective treatment of numerous diseases. The aim of this work was to investigate in…
The photofission cross section of ${}^{238}$U was measured at sub-barrier energies as a function of the $\ensuremath{\gamma}$-ray energy using a monochromatic, high-brilliance, Compton-backscattered $\ensuremath{\gamma}$-ray beam. The experiment was performed at the High Intensity $\ensuremath{\gamma}$-ray Source (HI$…
Combining simulation and experiment, we demonstrate that a metal nanoparticle dimer on a gold film substrate can confine more energy in the particle/film gap because of the hybridization of the dimer resonant lever and the continuous state of the film. The hybridization may even make the electric field enhancement in…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Cari S. Dutcher, Susan J. Muller; Effects of moderate elasticity on the stability of co- and coun…
Molecular dynamics simulations have been used to study the microjet from a grooved aluminium surface under shock loading. Plastic deformation and release melting during microjetting are both presented by the centrosymmetry parameter, where the effect of release melting is discussed in detail. Consequently, we obtain t…