6814 Suchergebnisse für: „“

Multicrystalline silicon thin film solar cells on glass with epitaxially grown emitter prepared by a two-step laser crystallization process

In this paper we demonstrate a two-step laser crystallization process for thin film silicon solar cells on glass. In a first step a 5 µm thick amorphous silicon layer is crystallized by a diode laser...

Measurement of effective refractive index differences in multimode optical fibers based on modal decomposition

We demonstrate the nondestructive measurement of the effective refractive index difference of two arbitrary modes within a multimode optical fiber by utilizing a tunable fber grating. We use a mechanical...

Plasmonic nanoparticle synthesis and bioconjugation for bioanalytical sensing

Plasmonic nanoparticles, e.g. nanoscale particles consisting of noble metals, show high potential as transducer elements in novel optical sensors. Their optical properties are based on collective and coherent...

Structure and functional properties of bulk MgB2 superconductors synthesized and sintered under pressure

The high pressure (50 MPa - 2 GPa) – high temperature synthesized MgB2 bulk materials are characterized by nearly theoretical density (1-2% porosity), 80-98% connectivity, extremely high critical current...

High Temperature Sensing with Fiber Bragg Gratings in Sapphire Fibers

In vitro monitoring of ring opening of leflunomide: A Surface Enhanced Raman Scattering and DFT based approach

The in vitro mechanism of ring opening of leflunomide resulting in formation of a metabolite A771726 has been studied by time series surface enhanced Raman spectra using NaOH buffer at pH ~10. The decomposition...

Surface enhanced Raman scattering investigation of two novel piperazine carbodithioic acids adsorbed on Ag and ZnO nanoparticles

In this work piperazine-1-carbodithioic acid (PZCDT) and piperazine-1,4-dicarbodithioic acid (PZbCDT) were synthesized. These analytes PZCDT and PZbCDT have chair conformations, which is expected to give...

Plasmon-driven sequential chemical reactions in an aqueous environment

Plasmon-driven sequential chemical reactions were successfully realized in an aqueous environment. In an electrochemical environment, sequential chemical reactions were driven by an applied potential and...

Isothermal DNA origami folding: avoiding denaturing conditions for one-pot, hybrid-component annealing

The DNA origami technique offers great potential for nanotechnology. Using biomolecular self-assembly, defined 2D and 3D nanoscale DNA structures can be realized. DNA origami allows the positioning of...

Abstimmbare Faserlaser basierend auf Faser-Bragg-Gitter Arrays als spektrale Filter

Faserlaser haben basierend auf einer hervorragenden Strahlqualität im Einmodenbetrieb und dem robusten sowie hocheffizienten Aufbau viele Anwendungsgebiete in der Industrie, Forschung sowie Medizintechnik...