6814 Suchergebnisse für: „“
Silicon powder-based wafers for low-cost photovoltaics: laser treatments and nanowire etching
In this study, laser treated polycrystalline-Si (pc-Si) wafers, fabricated by wire sawing of hot pressed ingots sintered from Si powder have been investigated. As-cut wafers and those with high quality...
PublikationenMeasurements of microwave vortex response in dc magnetic fields in Tl2Ba2CaCu2O8+x films
There is a renewed interest in superconductors for high-frequency applications, leading to a reconsideration of already known low-Tc and high-T, materials. In this view, we present an experimental investigation...
PublikationenPhysical properties of fiber Bragg gratings in single crystalline sapphire fibers
Investigating the properties of fiber Bragg gratings in sapphire fibers we estimated an inscription induced loss of 3 dB, a lower limit for the refractive index modulation of 4.5x10-5, and reflectivity...
PublikationenTm3+/Ho3+ co-doped germanate glass double-clad fiber for broadband emission and lasing above 2 µm
In the paper, 2 µm broadband emission under 796nm laser diode excitation in low phonon energy GeO2-Ga2O3-BaO glass system co-doped with 0.7Tm2O3/(0.07-0.7)Ho2O3 (mol%) and double-clad optical fiber co-doped...
PublikationenFabrication of micro-patterned substrates for plasmonic sensing by piezo-dispensing of colloidal nanoparticles
In this work we describe a very fast and flexible method for fabrication of plasmon supporting substrates with micro-patterning capability. We combined a wet chemistry approach to synthesize metallic nanoparticles...
PublikationenXPS investigations of MOCVD tin oxide thin layers on Si nanowires array
Tin oxide thin layers were grown by metal-organic chemical vapor deposition technique on the top-down nanostructured silicon nanowires array obtained by metal-assisted wet-chemical technique from single...
PublikationenThiosulfate- and hydrogen-driven autotrophic denitrification by a microbial consortium enriched from groundwater of an oligotrophic limestone aquifer
Despite its potentially high relevance for nitrate removal in freshwater environments limited in organic carbon, chemolithoautotrophic denitrification has rarely been studied in oligotrophic groundwater....
PublikationenElectroforming-free resistive switching in polycrystalline YMnO3 thin films
Polycrystalline YMnO3 thin films sandwiched between an un-patterned bottom electrode (Pt or Pt/Ti) and a circular top electrode (Au or Al) reveal an electroforming-free, unipolar resistive switching. We...
PublikationenPlanar multijunction thermal converters with increased sensitivity operated in hermetically sealed housings filled with noble gas
The sensitivity of planar multijunction thermal converters (PMJTCs) was significantly increased by filling the housing with noble gases, preferably xenon or krypton. The performance was observed for almost...
PublikationenRelated carbapenemase-producing Klebsiella isolates detected in both a hospital and associated aquatic environment in Sweden
Carbapenem antibiotics are one of the last-resort agents against multidrug-resistant (MDR) bacteria. The occurrence of carbapenemase-producing Enterobacteriaceae (CPE) in wastewater and aquatic environments...
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