Conferences and exhibitions

Besides the traditional focus on diamond, carbon nanotubes, and graphene, novel research on other carbon-based materials will be highlighted in this year´s International Conference on Diamond and Carbon Materials. This meeting traditionally spans the complete spectrum from materials preparation, over fundamental physical and chemical concepts, to applied research zooming in on novel device concepts making use of the remarkable properties of carbon materials. 

Topics include but are not limited to:

• Deposition and doping of diamond, carbon nanotubes, MXenes, graphene, etc.
• Physical and chemical modification of carbon materials
• Diamond devices for power electronics, optoelectronics and sensors
• Quantum technology based on carbon and boron nitride
• Energy harvesting and storage based on diamond, carbon nanotubes MXenes, graphene, etc.
• Defect engineering and colour centres in diamond
• Carbon nanodots and particles
• Theory and computational modelling of carbon materials
• Carbon-based heterostructures with novel oxide, carbide, and nitride materials
• Low temperature physics in carbon based materials
• Carbon materials under pressure and/or in high magnetic fields
• Device concepts using novel carbon materials for electronics, sensors, etc.
• Composites based on carbon nanomaterials

Poster presentation

“Electrochemical impedance spectroscopy with diamond electrodes for biosensing“

Jan Gäbler, Volker Sittinger, Martin Menzler

Abstract

Diamond is a unique material for electrochemistry: Its remarkable wide potential window enables unrivalled redox reactions that cannot be performed with other electrode materials; it enables high signal-to-noise ratios due to its low background current; and it has an extreme chemical and mechanical stability, providing constant results over a long time. These exceptional properties offer a great potential for sensing applications, especially for biosensing, where biomolecules are being detected via electrochemical redox reactions. Using diamond as electrode material has the potential to increase the sensitivity of biosensors, e.g. for the detection of pathogens like viruses. Results will be presented about biosensing experiments with boron-doped diamond electrodes. A largearea hot-filament activated CVD technology will be used to deposit the diamond electrodes in a costeffective way, with variation of the boron doping-level. Electrochemical impedance spectroscopy (EIS) will be used to analyse electrolytes with different biomolecules. The diamond electrode surface will be functionalised to enable a selection of the detected biomolecule. Results will be shown about testing of different functionalisation coatings and their effect on the EIS results.