6815 Suchergebnisse für: „“

Influence of surface pre-treatment on the electronic levels in silicon MaWCE nanowires

Deep Level Transient Spectroscopy (DLTS) was performed on n-doped silicon nanowires grown by Metal-assisted Wet Chemical Etching (MaWCE) with gold as the catalyst in order to investigate the energetic...

Dielectrophoretic positioning of single nanoparticles on atomic force microscope tips for tip-enhanced Raman spectroscopy

Tip- enhanced Raman spectroscopy ( TERS), a combination of Raman spectroscopy and scanning probe microscopy , is a powerful technique to detect the vibrational fingerprint of molecules at the nanometer...

Pinus sylvestris switches respiration substrates under shading but not during drought

Reduced carbon (C) assimilation during prolonged drought forces trees to rely on stored C to maintain vital processes like respiration. It has been shown, however, that the use of carbohydrates, a major...

Online investigation of respiratory quotients in Pinus sylvestris and Picea abies during drought and shading by means of cavity-enhanced Raman multi-gas spectrometry

Photosynthesis and respiration are major components of the plant carbon balance. During stress, like drought, carbohydrate supply from photosynthesis is reduced and the Krebs cycle respiration must be...

Wachstumskern TOF

Evolution of fluorine doping following the REPUSIL process for the adjustment of optical properties of silica materials

We report on the fluorine doping and codoping of powder-based silica bulk glasses fabricated using REPUSIL technology. The maximum doping level of 1.5 mol% of SiF4 is associated with a refractive index...

Engineering crystalline Au nanoparticles of anisotropic shape in epitaxially grown high-index SrTiO3

We present a possible fabrication scheme of anisotropic nanoparticles grown in a crystal high index material (SrTiO3). Different ellipsoidal Au nano-antennas were formed by changing the Au seed layer thickness...

Optical characterization of YBa2Cu3O7−delta thin film modified gold nanoparticles

We report on the influence of YBa2Cu3O7-δ (YBCO) thin films on the self-organized formation of gold nanoparticles. A thickness variation of the YBCO film allows to actively control the particle`s sizes...

Different Storage Conditions influence Biocompatibility and Physicochemical Properties of Iron Oxide Nanoparticles

Superparamagnetic iron oxide nanoparticles (SPIONs) have attracted increasing attention in many biomedical fields. In magnetic drug targeting SPIONs are injected into a tumour supplying artery and accumulated...

Spatial Resolution in Raman Spectroscopy

We presented the high resolution aspects of Raman spectroscopy using different approaches. By studying homogeneous samples under controlled conditions, a comparison of signal position fluctuations indicates...