In Situ Spectroscopy

Rapid developments in the field of material sciences and biofunctional surfaces have inspired one innovation after the other, for example, in sensor technology and optical applications. However, improved methods of characterising the properties of materials are required to research these new, often functional materials and to deploy them in a sensible manner. Researching and refining such methods is the remit of the In Situ Spectroscopy group.

The group is concerned with functional materials, such as metamaterials and hybrid materials: materials with artificially created microstructures and nanostructures whose optical properties and adsorption characteristics have been adapted to the application in question. One of the group's core competences is in-situ investigations at solid-liquid interfaces. Such interfaces are key factors for liquid sensors that are used, for example, to detect specific molecules in liquids. These analyses enable the work group to examine in detail how the surface of an organic or biofunctional film in a sensor changes when it comes into contact with substances, and how this influences the properties of the surface. The group primarily uses infrared ellipsometry and spectroscopy for this purpose. Together with optical models and simulation calculations, the measurements provide direct access to the optical and structural properties of the materials.  

Current Publications

Arylic vs. Alkylic - Hydrophobic Linkers Determine Supramolecular Structure and Optoelectronic Properties of Tripodal Amphiphilic Push-Pull-Thiazoles

Langmuir, Vol. 35, Nr. 7, , P. 2561–2570
Type: Journal article

In-situ infrared spectroscopic monitoring and characterization of the growth of polydopamine (PDA) films

Physica Status Solidi (b), Vol. 256, Nr. 1800308,
Type: Journal article

Characterisation of self-assembled monolayers for Cu-Cu bonding technology Microelectronic Engineering

Microelectronic Engineering, Vol. 202, Nr. 19-24,
Type: Journal article

In situ removal of a native oxide layer from an amorphous silicon surface by UV laser for subsequent layer growth

CrystEngComm, Vol. 20,
Type: Journal article

Embedding phosphoric acid-doped cellulose nanofibers into sulfonated poly (ether sulfone) for proton exchange membrane

Polymer, Vol. 156, Nr. 156, , P. 179–185
Type: Journal article

Hybrid Molecularly Imprinted Polymer for Amoxicillin Detection

Biosensors and Bioelectronics, Vol. 118, , P. 102–107
Type: Journal article