Materials Literature
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A key feature of semiconductor manufacturing over the past 30 years has been its ability to produce very small chips, the current state-of-the-art in production being around 0.25 mm in size. Conventional assembly is based on the handling of individual components by pick-and-place robots. This technology is unsuitable…
A multitude of processes cooperate to produce the sensation of sound. The key initial step, the transformation from mechanical motion into an electrical signal, takes place in highly specialized mechanosensitive organelles that are called hair bundles due to their characteristic appearance. Each hair bundle comprises…
In this paper we demonstrate laser emission from emulsion-based polymer dispersed liquid crystals. Such lasers can be easily formed on single substrates with no alignment layers. Remarkably, it is shown that there can exist two radically different laser emission profiles, namely, photonic band-edge lasing and non-reso…
In this work, the mechanical behavior of sintered waste material of ethylene-propylene-diene-monomer crumb rubber (EPDMCR) is analyzed, optimizing the temperature and compression pressure. The results obtained showed that an increase in temperature and compression pressure gives a significant improvement in the mechan…
The effect of extending the conjugation length, the deployment of various substituents and configurational locking of the polyene backbone on the second-order nonlinear optical (NLO) response of a series of indoline based compounds has been investigated. The compounds were examined using Hyper-Rayleigh scattering (HRS…
Nanotechnology is an interdisciplinary research effort bridging many scientific fields from physics and chemistry to engineering, biology, and medicine. The result of such interconnections is holding great potential for the early detection, diagnosis, and personalized treatment of disease. The nanoscale range at which…
Dispersion and resonance properties of double nanorod structure, ring structure, H structure and chair type structure is demonstrated. With some structural modification, the properties of the structure changes from isotropic to uni-axial anisotropic and further to chiral left-handed material. The Demonstration of near…
Die Faltungsdynamik individueller Proteinstrukturelemente wird mit einer Methode untersucht, die mehrere Sonden und Frequenzen nutzt. In ihrer Zuschrift auf S. 11076 ff. erzielen M. R. Bunagan, F. Gai et al. mit ihrem Verfahren eine deutlich verbesserte Strukturauflösung bei der kinetischen Untersuchung der Faltungsdy…
This paper demonstrates formation of surface relief (SR) gratings and crossed SR gratings with molecularly oriented structure using photo-cross-linkable liquid crystalline copolymer films by means of holographic exposure of 325 nm He- Cd laser beams combined with linearly polarized (LP) UV light. For the intensity hol…
We report on length statistics measured for bubbles in the equilibrium bamboo state, achieved by the coarsening of aqueous foam in long cylindrical tubes, such that the soap films are all flat and perpendicular to the axis of the tube. The average bubble length is found to be 0.88 times the tube diameter, independent…
Photo-responsive multi-bilayered film consisting of azobenzene polymer liquid crystals (PAzo) and polyvinylalcohol (PVA) was prepared on a glass substrate by spin coating of the polymer solutions alternately. The reflectivity of the multi-bilayered film disappeared by annealing at 80 °C. The disappearance of the refle…
Our work aims to identify nano-scale metal films with enhanced absorption between 1 to 10 THz for use in thermal imagers operating in this spectral band. Absorption measurements of chromium and nickel films with different thicknesses (8 - 30 nm) revealed absorption as high as 40% (Cr) and 27% (Ni) between 3 and 9 THz.…
Abstract An investigation of variations in outlet temperatures of heat exchangers under fouling was carried out. The simulation of heat exchangers was performed by employing a linear fouling deposit function. The formation of deposits reduces heat exchangers effectiveness. There is inherently a linear nature between o…
Nonlinear optical properties of a series of protonated mixed (porphyrinato)(phthalocyaninato) rare-earth double-decker complexes [MIIIH(TClPP){Pc(α-OC4H9)8}] (1-6; M = Sm, Eu, Tb, Y, Ho, Lu; TClPP = meso-tetrakis (4-chlorophenyl)porphyrinate; Pc(α-OC4H9)8 = 1,4,8,11,15,18,22,25-octakis(1-butyloxy)phthalocyaninate) in…
We study the relaxation process in a two-dimensional lattice gas model, based on the concept of geometrical frustration. In this model the particles are k-mers that can both randomly translate and rotate on the planar triangular lattice. In the absence of rotation, the diffusion of hard-core particles in crossed singl…
Eine neuartige umweltfreundliche Pt-freie Gegenelektrode (GE) für farbstoffsensibilisierte Solarzellen (DSSCs) stellen Z. Lin et al. in der Zuschrift auf S. 11 943 ff. vor. Sie basiert auf Nanokristallen aus preiswertem quaternärem Kupferzinkzinnsulfid (CZTS), mit denen fluordotiertes Zinnoxidglas sprühbeschichtet wir…
Room-temperature contactless electroreflectance (CER) was used to investigate the optical properties of a N,N'-didecylperylene-3,4,9,10-tetracarboxylic diimide (PTCDI-C10H21) thin-film sandwiched between indium tin oxide and aluminum electrodes (Al/PTCDI/ITO/glass substrate) under vacuum conditions. The electromodulat…
Since 10 years spatial optical solitons are studied for application in optical steering and routing. We propose here another potential use of solitons: a localized spectral probe in colloids. We show the feasibility of this concept by collecting the fluorescence signal escaping from in a cell filled with a mixture of…
Three types of alkyl-substituted vanadyl phthalocyanines (OVPcs) were synthesized and their organic thin film transistors (OTFTs) were prepared by solution casting with a bottom gate and top contact device geometry. A peripheral octaoctyl-substituted OVPc (OVPc-op-C8) showed the mobility in the order of 10-5 cm2/V•s.…
We summarize here studies aimed at incorporating silver nanoparticles or semiconductor nanoparticles (quantum dots) into polymeric microstructures. Two different approaches are followed in the case of silver nanoparticles and quantum dots (QDs). In case of silver a combination of photoreduction and thermal annealing a…