6814 Suchergebnisse für: „“

Photoluminescence at room temperature of liquid-phase crystallized silicon on glass

The room temperature photoluminescence (PL) spectrum due band-to-band recombination in an only 8 um thick liquid-phase crystallized silicon on glass solar cell absorber is measured over 3 orders of magnitude...

Covalent Photosensitizer–Polyoxometalate-Catalyst Dyads for Visible-Light-Driven Hydrogen Evolution

A general concept for the covalent linkage of coordination compounds to bipyridine-functionalized polyoxometalates is presented. The new route is used to link an iridium photosensitizer to an Anderson-type...

Multijunction a-Si:H/c-Si solar cells with vertically-aligned architecture based on silicon nanowires

The new design for full silicon multi-junction solar cells, which consists of combination of silicon nanowires (SiNWs) and conventional silicon-based hetero-junctions, is proposed in the paper. A top junction...

Absolute calibration of a three-axis SQUID-cascade vector magnetometer

We report on the absolute calibration of a three-axis SQUID-cascade vector magnetometer suited for mobile operation in the Earth’s magnetic field. It is based on LTS dc SQUIDs with sub-micrometer sized...

Antimicrobial effect of biocompatible silicon nanoparticles activated by therapeutic ultrasound

In this study, we report a novel method of suppression of Escherichia coli (E.coli) culture vitality using biocompatible silicon nanoparticles as sensitizers of cavitation processes of therapeutic ultrasound...

Surface plasmon-driven photocatalysis in ambient, aqueous and high-vacuum monitored by SERS and TERS

The review described here show the plasmonic catalysis studied by SERS and TERS techniques in atmosphere, aqueous and high-vacuum environments. However, to understand the full plasmonic catalysis potential,...

Charge-Transfer Dynamics in Nanorod Photocatalysts with Bimetallic Metal Tips

CdSe@CdS dot-in-rod nanostructures tipped with AuPt bimetallic nanoparticles as cocatalyst show increased photon-to-hydrogen conversion efficiency compared to their analogues with pure Au or Pt tips. To...

A low power 10V programmable array based on NbxSi1−x Josephson junctions for metrology applications

Josephson junctions generate, when subjected to microwave irradiation, voltages with a veryhigh precision and are used in metrology applications. So-called PJVS (programmableJosephson voltage-standards)...

Synthesis and characterization of ruthenium and rhenium dyes with phosphonate anchoring groups

Re(L1)–Re(L3), a series of rhenium(I) tricarbonyl chloride complexes with bpy-R2 derivatives L1–L3 (bpy =2,2’-bipyridine, R represents the substitution at the 4- and 4’-positions), and their corresponding...

Raman spectroscopic gas sensing