Current research projects

Graduiertenkolleg 2802

Raman spectroscopic and electrical characterization of functionalized materials based on recycled materials (DFG, P9), 01.07.2022 - 30.06.2026 (Kortus/Richter)

Raman spectroscopy (RS) is used to investigate phases, functionalized surfaces and possible impurities of refractory recyclates for the production of novel refractory materials using environmentally friendly binders. Using in-situ RS as a function of temperature, phase transitions can be detected and intermediate or by-products can be identified. The characterisation of carbon-bonded materials using Raman spectroscopy and, in particular, an understanding of the reactions during the coking of the environmentally friendly gelatine-based binders as a function of temperature is a key area of work.

Inert, metalloceramic anode materials based on refractory recyclates are characterised by means of temperature-dependent electrical conductivity measurements. As far as possible, information from RS (e.g. spinel formation of nickel ferrites) and the microstructure design of composite materials is used by FAST/SPS to model the measurement data obtained. The aim is to understand temperature-induced structural and compositional changes in the metalloceramic anode materials.

Completed research projects

• Thermoelectric properties of In1-x@xln2S4-y Tey Thiospinelle (DFG), 01.06.2021 - 31.07.2023 (Himcinschi/Özden)
• SFB 920: Multifunctional filters for molten metal filtration (3rd phase) TP A04: "Thermodynamic properties and interaction of filter materials and inclusions" (DFG SFB 920), 01.07.2019 - 30.06.2023 (Kortus/Himcinschi/Brehm/Kraus)
• Rational design of organic charge transfer compounds based on polycyclic aromatic hydrocarbons and FnTCNQ (DFG), 01.08.2016 - 31.10.2019 (Hahn)
• ESF Junior Research Group HalMa: Defect Engineering in Wide-Bandgap Semiconductor Materials for Applications in Opto and Power Electronics (ESF), 01.10.2015 - 30.09.2018 (Kortus/Röder/Liebing/etc.)
• WeNDeLIB - Materials with new design for improved lithium-ion batteries (SPP 1473) (2nd phase), 01.06.2014-31.05.2017 (Kortus/Schwalbe)
• PPP India (DST), Electronic structure and transport in fuctional nano-materials (DAAD), 01.01.2015 - 31.12.2016 (Project leader: Kortus)
  Electronic structure and transport in functional nano-materials, 01.01.01.2015 - 31.12.2016 (Kortus/Hahn/Liebing)
• Towards Molecular Spintronics (FOR 1154)
  TP SP3 "Electronic structure, transport and collective effects in molecular layered systems" (DFG), 02.08.2010 - 31.08.2016 (Kortus/Hahn)
• Raman spectroscopic characterisation of GaN bulk substrates (BMBF), 01.07.2015 - 30.11.2015 (Kortus, Röder, Ostermay)
• Raman spectroscopic characterisation of bilayer-doped GaN bulk substrates (BMBF), 01.01.2015 - 30.06.2015 (Kortus, Röder, Ostermay)
• Raman spectroscopic investigations of epitaxial multiferroic thin films (DFG), 01.11.2010-31.10.2014 (Himcinschi, Talkenberger)
• New bulk hard materials (TP12/B), Excellence Initiative (ADDE), 01.04.2010-30.06.2014, (Prof. Kortus/T. Gruber)
• Defect-based interfacial stability and mechanical behaviour of metastable interfaces (TP11/B), Excellence Initiative (ADDE), 01.07.2009-30.06.2014, (Prof.Kortus/Dr. C. Martin)
• Molecular switching effects for information storage (TP9/B), Excellence Initiative (ADDE), 01.10.2009-30.06.2014, (Prof.Kortus/S. Liebing)
• Defect-stabilised metal oxides as dielectrics for electronic components (TP6/B), Excellence Initiative (ADDE), 01.01.2010 - 31.12.2013, (Prof.Kortus/Dr. T. Weißbach)
• Defect and stress correlation of GaN layers on nanostructured substrates (TP5/A), Excellence Initiative (ADDE), 01.03.2009 - 31.05.2014, (Prof. Kortus/C. Röder)
• Prediction of possible crystal structures under consideration of pressure and temperature effects, Dr. Erich-Krüger-Stiftung, 01.09.2007 - 31.03.2013 (Prof. Kortus/S. Bahmann)
• Molecular Magnetism, 20.06.2010-10.09.2013, project funded by the European Social Fund, (Prof. Kortus/Dr. C. Martin)
• The Si-Al-O-N system under extreme pressures: A synthetic and computational route to new materials? 01.01.2010-30.04.2013, DFG, SPP 1236, KO 1924/3-2 (Prof. Kortus/S. Schmerler)
• Systematic influencing of defects in dielectric layers for non-volatile memories, 01.10.2009-30.09.2012, ADDE, (TP7/B) (Prof. Kortus/C. Röder)
• Interfacial strength between TRIP steel matrix and ZrO2: Role of local heteroepitaxy and
  defect networks in energy absorption, 2008 - 2012, SFB 799 (Prof. Kortus/J. Kutzner)
• Research into novel methods for contactless and non-destructive investigation of interface defects on components and complex material systems, 01 June 2009 - 31 May 2011, ESF (Prof. Kortus/B. Berger)
• Surface modification of polyethylene materials with amorphous and nanocrystalline C:H layers, 2007 - 2008, DFG, DO660/9-1, (Prof. Irmer)
• Acciones Integradas Hispano-Elemanas, 2007 - 2008, DAAD, (Prof. Kortus)
• Molecular Magnetism, 2006 - 2008, DFG, Ko1924/4-1, (Project leader: Prof. Kortus)
• Project-related personal exchange with Slovakia, 2004 - 2005, DAAD, (Prof. Irmer)
• Bubble analysis, 2003, Carl-Zeiss-Stiftung, (Prof. Irmer)
• Raman spectroscopic measurements of inclusions in glass, 2001 - 2002, Schott Glas Mainz (Prof. Irmer)
• Raman spectroscopic measurements of inclusions in glass, 2001 - 2002, Schott Glas Mainz (Prof. Irmer)
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• Project-related personal exchange with Russia, 1998, DFG, 436RUS/37/98, (Prof. Irmer)
• Defect interaction effect in GaAs, 1995 - 2000, DFG, Ir23/3-1, 3-2, (Project leader: Prof. Irmer)
• Theory of isovalent delta doping, 1995 - 1997, DFG, Mo673/1-1, 1-2, (Project leader: Prof. Monecke)
• Hall factor of p-type semiconductors, 1992 - 1997, DFG, Ir23/1-1, Ir23/1-2, Ir23/1-3, (Project leader: Prof. Irmer)

Zur Ausstattung