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Silicon nanowire solar cells with radial p-n heterojunction on crystalline silicon thin films: light trapping properties
We present a concept for a core-shell silicon nanowire thin film solar cell showing perfect light trapping. Nanowires are wet chemically etched into a several µm thick laser-crystallized silicon thin...
PublikationenMulticrystalline silicon thin film solar cells based on a two-step liquid phase laser crystallization process
We present a technology for preparing multi¬crystalline silicon thin film solar cells based on laser crystalliz¬ation. The technology makes use of high rate electron beam evap¬oration of amorphous silicon...
PublikationenUltrasensitive Fiber Enhanced UV Resonance Raman Sensing of Drugs
Fiber enhanced UV resonance Raman spectroscopy is introduced for chemical selective and ultrasensitive analysis of drugs in aqueous media. The application of hollow-core optical fibers provides a miniaturized...
PublikationenFemtosecond laser diagnostics of the built-in electric field across the p+-Si/SiO2 interface and its ultrafast shielding
Ultrafast shielding of the built-in electric field E0 across the p+-Si/SiO interface of boron doped Si upon near infrared femtosecond (fs) laser pulse irradiation (73fs, 35GW/cm2 < Ipeak < 115 GW/cm...
PublikationenIdentification of water pathogens by Raman microspectroscopy
Legionella species can be found living in water mostly in a viable but nonculturable state or associated with protozoa and complex biofilm formations. Isolation and afterwards identification of these pathogens...
PublikationenCulture Independent Raman Spectroscopic Identification of Urinary Tract Infection Pathogens: A Proof of Principle Study
Urinary tract infection (UTI) is a very common disease. Up to every second women will experience at least one UTI episode during her lifetime. The gold standard for identifying the infectious microorganisms...
PublikationenSuperresolution by image scanning microscopy using pixel reassignment
The effect of detector array size on resolution and signal collection efficiency of image scanning microscopy based on pixel reassignment is studied. It is shown how the method can also be employed if...
PublikationenAnalysis of Fe(III) Heme Binding to Cysteine-Containing Heme-Regulatory Motifs in Proteins
Regulatory heme binds to specific motifs in proteins and controls a variety of biochemical processes. Several of these proteins were recently shown to form complexes with ferric and/or ferrous heme via...
PublikationenEffects of High Pressure on the Physical Properties of MgB2
The synthesis of MgB2-based materials under high pressure gave the possibility to suppress the evaporation of magnesium and to obtain near theoretically dense nanograined structures with high superconducting,...
PublikationenDetailed analysis of the longitudinal acoustooptical resonances in a fiber Bragg modulator
The interaction frequencies between longitudinal acoustic waves and fiber Bragg grating are numerically and experimentally assessed. Since the grating modulation depends on the acoustic drive, the combined...
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