6814 Suchergebnisse für: „“

Performance and lifetime of vacuum deposited organic light-emitting diodes: Influence of residual gases present during device fabrication

Understanding the influence of residual gases present during vacuum deposition of organic light-emitting diodes (OLEDs) and their effect on the device lifetime and the electrical characteristics of OLEDs...

Proof of concept of fiber dispersed Raman spectroscopy using superconducting nanowire single-photon detectors

Due to its high molecular specificity, Raman spectroscopy is a well-established analytical tool. Usually the inelastically scattered Raman light is spectrally dispersed by a spectrometer. Here, we present...

Multimodal Imaging Spectroscopy of Tissue

Advanced optical imaging technologies have experienced increased visibility in medical research as they allow for a label-free and nondestructive investigation of tissue either in an excised state or in...

LOC-SERS: towards point-of-care diagnostic of Methotrexate

New strategy of controlled bottom-up synthesis of well-defined plasmonic nanoparticles for biological applications

Electrically excited plasmon resonances in hybrid metallic nano-structures as innovative sensor concept in bioanalytics

Investigations on light emission by inelastic tunneling in metal-insulator-semiconductor structures, as concept for a new type of sensor, were performed. Tunneling junctions were designed, fabricated and...

Chemo-spectroscopic sensor for carboxyl terminus overexpressed in carcinoma cell membrane

Certain carboxyl groups of the plasma membrane are involved in tumorgenesis processes. A gold core-hydroxyapatite shell (AuHA) nanocomposite is introduced as chemo-spectroscopic sensor to monitor these...

Photophysics of a Ruthenium 4H-Imidazole Panchromatic Dye in Interaction with Titanium Dioxide

The photophysics of bis-η2-(4,4’-di-(tert-butyl)-2,2’-bipyridine)-η2-(2-(p-benzoic acid)-4,5-(p-tolylimino)-imidazolate)-ruthenium(II)-hexafluorophosphate is investigated, both in solution and attached...

Neue Forschungsergebnisse am Karlsgraben durch geophysikalische Meßmethoden

Differences in Single and Aggregated Nanoparticle Plasmon Spectroscopy

Vibrational spectroscopy usually provides structural information averaged over many molecules. We report a larger peak position variation and reproducibly smaller FWHM of TERS spectra compared to SERS...