Grabowski, B.; Wippermann, S. M.; Glensk, A.; Hickel, T.; Neugebauer, J.: Random phase approximation up to the melting point: Impact of anharmonicity and nonlocal many-body effects on the thermodynamics of Au. DPG Spring Meeting 2015, Berlin, Germany (2015)
Nugraha, T. A.; Wippermann, S. M.: Understanding 3C-SiC/SiO2 interfaces in SiC-nanofiber based solar cells from ab initio theory. APS March Meeting 2015, San Antonio, TX, USA (2015)
Scalise, E.; Wippermann, S. M.; Galli, G.: Nanointerfaces in InAs-Sn2S6 nanocrystal-ligand networks: atomistic and electronic structure from first principles. APS March Meeting 2015, San Antonio, TX, USA (2015)
Scalise, E.; Wippermann, S. M.; Galli, G.: Nanointerfaces in InAs-Sn2S6 nanocrystal-ligand networks: atomistic and electronic structure from first principles. 79th Annual Meeting of the DPG and DPG Spring Meeting, Berlin, Germany (2015)
Wippermann, S. M.; Schmidt, W. G.; Oh, D. M.; Yeom, H. W.: Impurity-mediated early condensation of an atomic layer electronic crystal: oxygen-adsorbed In/Si(111)-(4×1)/(8×2). DPG Spring Meeting 2015, Berlin, Germany (2015)
Yang, L.; Tecklenburg, S.; Fang, N.; Erbe, A.; Wippermann, S. M.; Gygi, F.; Galli, G.: A joint first principles and ATR-IR study of the vibrational properties of interfacial water at Si(100):H-H2O solid-liquid interfaces. APS March Meeting 2015 , San Antonio, TX, USA (2015)
Wippermann, S. M.; Schmidt, W. G.: In/Si(111)-(4×1)/(8×2): a fascinating model system for one-dimensional conductors. DPG March Meeting 2014, Berlin, Germany (2014)
Wippermann, S. M.; Schmidt, W. G.: In/Si(111)-(4x1)/(8x2): A fascinating model system for one-dimensional conductors. DPG Spring Meeting, Dresden, Germany (2014)
Scalise, E.; Wippermann, S. M.; Galli, G.: Nanointerfaces in semiconducting nanocomposites: atomistic and electronic structure from first principles. PSI-K 2015 Conference , San Sebastian, Spain (2015)
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
Within this project, we will use a green laser beam source based selective melting to fabricate full dense copper architectures. The focus will be on identifying the process parameter-microstructure-mechanical property relationships in 3-dimensional copper lattice architectures, under both quasi-static and dynamic loading conditions.
Oxides find broad applications as catalysts or in electronic components, however are generally brittle materials where dislocations are difficult to activate in the covalent rigid lattice. Here, the link between plasticity and fracture is critical for wide-scale application of functional oxide materials.
The fracture toughness of AuXSnY intermetallic compounds is measured as it is crucial for the reliability of electronic chips in industrial applications.
Within this project we investigate chemical fluctuations at the nanometre scale in polycrystalline Cu(In,Ga)Se2 and CuInS2 thin-flims used as absorber material in solar cells.