Choi, P.: Characterization of CuInSe2 and CuInGaSe2 thin-film solar cells using Atom Probe Tomography. International Conference on Electronic Materials and Nanotechnology for Green Environemnt, Jeju Island, South Korea (2010)
Cojocaru-Mirédin, O.; Choi, P.; Wuerz, R.; Raabe, D.: Atomic-scale distribution of impurities in CuInSe2-based thin-film solar cells. 52nd International Field Emission Symposium IFES 2010, Sydney, Australia (2010)
Dmitrieva, O.; Choi, P.; Ponge, D.; Raabe, D.; Gerstl, S. S. A.: Laser-pulsed atom probe studies of a complex maraging steel: Laser pulse energy variation and precipitate analysis. 52nd International Field Emission Symposium IFES 2010, Sydney, Australia (2010)
Li, Y. J.; Choi, P.; Borchers, C.; Chen, Y.Z.; Goto, S.; Raabe, D.; Kirchheim, R.: Atom Probe Tomography characterization of heavily cold drawn pearlitic steel wire. 52nd International Field Emission Symposium (IFES), Sydney, Australia (2010)
Raabe, D.; Li, Y. J.; Choi, P.; Sauvage, X.; Kirchheim, R.; Hono, K.: Atomic-scale mechanisms in mechanical alloying - Towards the limits of strength in ductile nano-structured bulk materials. International Symposium on Metastable, Amorphous and Nanostructured Materials (ISMANAM) 2010, ETH Zürich, Switzerland (2010)
Cojocaru-Mirédin, O.; Choi, P.; Wuerz, R.; Raabe, D.: Atomic-scale distribution of impurities in CuInSe2-based thin-film solar cells. 15th GLADD meeting 2010, Delft, The Netherlands (2010)
Cojocaru-Mirédin, O.; Choi, P.; Wuerz, R.; Liu, T.; Raabe, D.: Characterization of CuInSe2 and Cu(In,Ga)Se2 thin-film solar cells using Atom Probe Tomography. Zentrum für Sonnenenergie und Wasserstoffforschung (ZSW), Stuttgart, Germany (2010)
Jun, H.; Choi, P.-P.; Li, Z.; Raabe, D.: Design of dual-phase refractory multi-principle element alloys. 2nd International Conference on High-Entropy Materials (ICHEM 2018), Jeju, South Korea (2018)
Cojocaru-Mirédin, O.; Schwarz, T.; Choi, P.; Würz, R.; Raabe, D.: Characterization of Cu(In,Ga)Se2 grain boundaries using atom probe tomography. 2013 MRS Spring Meeting & Exhibit, San Francisco, CA, USA (2013)
Herbig, M.; Choi, P.; Raabe, D.: A Sample Holder System that Enables Sophisticated TEM Analysis of APT Tips. International Field Emission Symposium 2012, Tuscaloosa, AL, USA (2012)
Cojocaru-Mirédin, O.; Choi, P.; Wuerz, R.; Raabe, D.: Atomic-scale analysis of the p-n junction in CI(G)S thin-film solar cells. Euromat 2011, Montpellier, France (2011)
Choi, P.: Nanoscale characterization of TiAlN/CrN multilayer hardcoatings. 5th International Union of Microbeam Analysis Societies meeting, Seoul, South Korea (2011)
In this project, we aim to enhance the mechanical properties of an equiatomic CoCrNi medium-entropy alloy (MEA) by interstitial alloying. Carbon and nitrogen with varying contents have been added into the face-centred cubic structured CoCrNi MEA.
The aim of this project is to correlate the point defect structure of Fe1-xO to its mechanical, electrical and catalytic properties. Systematic stoichiometric variation of magnetron-sputtered Fe1-xO thin films are investigated regarding structural analysis by transition electron microscopy (TEM) and spectroscopy methods, which can reveal the defect…
The worldwide developments of electric vehicles, as well as large-scale or grid-scale energy storage to compensate the intermittent nature of renewable energy generation has generated a surge of interest in battery technology. Understanding the factors controlling battery capacity and, critically, their degradation mechanisms to ensure long-term…
In this project, we aim to achieve an atomic scale understanding about the structure and phase transformation process in the dual-phase high-entropy alloys (HEAs) with transformation induced plasticity (TRIP) effect. Aberration-corrected scanning transmission electron microscopy (TEM) techniques are being applied ...
Femtosecond laser pulse sequences offer a way to explore the ultrafast dynamics of charge density waves. Designing specific pulse sequences may allow us to guide the system's trajectory through the potential energy surface and achieve precise control over processes at surfaces.
Nickel-based alloys are a particularly interesting class of materials due to their specific properties such as high-temperature strength, low-temperature ductility and toughness, oxidation resistance, hot-corrosion resistance, and weldability, becoming potential candidates for high-performance components that require corrosion resistance and good…
In this project, we investigate the phase transformation and twinning mechanisms in a typical interstitial high-entropy alloy (iHEA) via in-situ and interrupted in-situ tensile testing ...
Solitonic excitations with topological properties in charge density waves may be used as information carriers in novel types of information processing.