Materials Literature
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Carbon dots (C-dots) are emerging as new emitting nanomaterials for optoelectronics, bioimaging, and biosensing thanks to their high quantum yield (QY), biocompatibility, low toxicity, and cost-effective sources. Although the origin of their photoluminescence (PL) mechanism (i.e., their strong blue-green emission and…
Abstract Cellulose acetate/carbon nanotube composite nanofibers were prepared using electrospinning technique. The morphology, crystalline, and mechanical properties were characterized by scanning electron microscopy ( SEM ), transmission electron microscopy ( TEM ), X‐ray diffraction ( XRD ), Fourier transform infrar…
Defrosting is essential for removing frost from engineering surfaces, but some fundamental issues are still unclear, especially for defrosting on superhydrophobic surfaces. Here, defrosting experiments on prepared superhydrophobic surfaces were conducted along with the investigation on meltwater evolution characterist…
Recent advances in graphene-nanoribbon-based research have demonstrated the controlled synthesis of chiral graphene nanoribbons (chGNRs) with atomic precision using strategies of on-surface chemistry. However, their electronic characterization, including typical figures of merit like band gap or frontier band's effect…
Abstract In‐situ flash experiments on rutile TiO 2 were performed at the synchrotron at the Brookhaven National Laboratory. Pair distribution function analysis of total X‐ray scattering measurements yielded mean‐square atomic displacements of oxygen and titanium atoms during the progression of the 3 stages of flash. T…
Plasmonic alloy has attracted much interest in tailoring localized surface plasmon resonance (LSPR) for recent biosensing techniques. In particular, paper-based plasmonic substrates allow capillary-driven lateral flow as well as three-dimensional metal nanostructures, and therefore they become actively transferred to…
Complexes of CdS nanorods and [FeFe] hydrogenase I from Clostridium acetobutylicum have been shown to photochemically produce H 2 . This study examines the role of the ligands that passivate the nanocrystal surfaces in the electron transfer from photoexcited CdS to hydrogenase and the H 2 generation that follows. We f…
Atomically thin transition-metal dichalcogenides (TMDC) have become a new platform for the development of next-generation optoelectronic and light-harvesting devices. Here, we report a Kelvin probe force microscopy (KPFM) investigation carried out on a type-II photovoltaic heterojunction based on WSe 2 monolayer flake…
Structural, electronic, vibrational and thermodynamic properties have been tested when Hubbard parameter U is implemented in density functional theory calculations for TiO 2 polymorphs: anatase, rutile, TiO 2 –B and for hydrogen titanate (H 2 Ti 3 O 7 ) bulk. Optimum U parameter values were found for each system, bala…
Abstract Monolayer molybdenum disulfide (MoS 2 ) has received intense interest as a strong candidate for next-generation electronics. However, the observed electrical properties of monolayer MoS 2 exhibit several anomalies: samples universally exhibit unexpectedly low mobilities, n-type characteristics, and large cont…
We explore the Floquet band structure and electronic transport in laser-illuminated bilayer graphene ribbons. By using a bias voltage perpendicular to the graphene bilayer we show how to get one-way charge and valley transport among two unbiased leads. In contrast to quantum pumping, our proposal uses a different mech…
Though poly(2,2,6,6-tetramethylpiperidinyloxy methacrylate) (PTMA) was reported to be conductive, careful measurements indicate its insulating nature regardless of synthesis method, which have implication for its application in organic electronics.
Data acquisition software is an essential component of modern macromolecular crystallography (MX) beamlines, enabling efficient use of beam time at synchrotron facilities. Developed at the Paul Scherrer Institute, the DA+ data acquisition software is implemented at all three Swiss Light Source (SLS) MX beamlines. DA+…
High Resolution Image Download MS PowerPoint Slide Sintering is an important issue in creating crystalline metal oxides with high porosity and surface area, especially in the case of high-temperature materials such as metal aluminates. Herein we report a rationally designed synthesis of metal aluminates that diminishe…
Aggregation-induced emission (AIE) offers a route for the development of luminescent technologies with high quantum efficiencies. Excited-state intramolecular proton transfer (ESIPT) coupled to AIE can produce devices with emission across the visible spectrum. We use a combination of theoretical models to determine th…
Three novel nanosized Cu(II), Co(II) and Ni(II) complexes of imine ligand attained from the condensation of 2‐amino‐3‐hydroxypyridine and 3‐methoxysalicylaldehyde have been prepared and investigated using diverse chemical methods such as NMR, CHN analysis, conductance, IR, Spectral studies, TGA and magnetic moment mea…
Nowadays, fluorescence detection has emerged as one of the most frequently used noninvasive biosensing methods to selectively monitor biological processes within living systems. Among fluorescent nanoparticles (NPs), gold nanoclusters (AuNCs) have been intensively studied because of their intrinsic fluorescence and th…
Microwave-assisted hydrothermal synthesized GOQDs exhibit yellowish-green and blue light emission with quantum yields of 15.1% and 8.4%, respectively.
As electroactive polymers have recently presented potential in applications in the tissue engineering and biomedical field, this study is aiming at the fabrication of composite nanofibrous membranes containing conducting polyaniline and at the evaluation of their biocompatibility. For that purpose, conducting polyanil…
Abstract Controllable growth of highly crystalline transition metal dichalcogenide (TMD) patterns with regular morphology and unique edge structure is highly desired and important for fundamental research and potential applications. Here, single‐crystalline MoS 2 flakes are reported with regular trigonal symmetric pat…