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Prof. Dr. Alex Redinger
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| Faculty or Centre | Faculty of Science, Technology and Medicine | ||||
| Department | Department of Physics and Materials Science | ||||
| Postal Address |
Campus Limpertsberg, Université du Luxembourg 162 A, avenue de la Faïencerie L-1511 Luxembourg |
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| Campus Office | BS 3.08A | ||||
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| Telephone | (+352) 46 66 44 6358 | ||||
Alex Redinger is a full professor at the University of Luxembourg in the Physics and Materials Science Research Unit.
His research interests are:
- Thin film solar cells such as Cu(In,Ga)Se2 , kesterites and hybrid perovskites
- Scanning Probe microscopy methods (STM, STS, KPFM)
Alex Redinger studied Physics at the RWTH Aachen in Germany. He carried out his PhD in the group of Prof. Thomas Michely where he studied ion-surface interactions with scanning tunneling microscopy. As a Postdoc he worked at the University of Luxembourg in the group of Prof. Susanne Siebentritt and at the Helmholtz Zentrum Berlin in the group of Dr. Thomas Unold. The overarching topic of his postdoctoral stays where the fabrication and characterization of kesterite solar cells.
In 2016, he was granted with an FNR ATTRACT Consolidator grant, which allows him to build up a scanning probe microscopy group to study the surfaces and interfaces of thin film solar cells.
Last updated on: Wednesday, 26 October 2022
2022
Single-crystalline TiO2 nanoparticles for stable and efficient perovskite modules; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
in Nature Nanotechnology (2022), 17
Surface Passivation and Detrimental Heat-Induced Diffusion Effects in RbF-Treated Cu(In,Ga)Se2 Solar Cell Absorbers; ; ; ; ; ; ; ; ; ;
in ACS Applied Materials and Interfaces (2022), 14(29), 34101-34112
Inhomogeneities in lead halide perovskite absorbers revealed by quantitative Photoluminescence Imaging; ; ; ;
in Phirke, Himanshu; Singh, Ajay; Hieulle, Jeremy; Redinger, Alex; Krishna, Anurag (Eds.) Inhomogeneities in lead halide perovskite absorbers revealed by quantitative Photoluminescence Imaging (2022, April 20)
The impact of strain on growth mode in chemical vapor deposited mono- and few-layer MoS2; ; ; ; ;
in AIP Adv. (2022), 12(6), 065010
Coevaporation Stabilizes Tin-Based Perovskites in a Single Sn-Oxidation State; ; ; ; ; ; ; ;
in Nano Letters (2022)
Sn4+-free, stable tin perovskite films for lead-free perovskite solar cells; ; ; ; ; ; ;
in 2022 IEEE 49th Photovoltaics Specialists Conference (PVSC) (2022, November 14)
2021
Co-evaporation of CH3NH3PbI3: How Growth Conditions Impact Phase Purity, Photostriction, and Intrinsic Stability; ; ; ; ;
in ACS Applied Materials and Interfaces (2021), 13(2), 26422653
Nanoscale interfacial engineering enables highly stable and efficient perovskite photovoltaics; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
in Energy and Environmental Science (2021)
Impact of metallic potassium post-deposition treatment on epitaxial Cu(In, Ga)Se2; ; ; ; ;
in Thin Solid Films (2021)
Roadmap on organic–inorganic hybrid perovskite semiconductors and devices; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
in APL Materials (2021)
2020
Effects of Annealing and Light on Co-evaporated Methylammonium Lead Iodide Perovskites using Kelvin Probe Force Microscopy in Ultra-High Vacuum; ;
in 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC) (2020, February 06)
Passivation of the CuInSe2 surface via cadmium pre-electrolyte treatment; ; ; ; ; ; ; ;
in Physical Review Materials (2020)
Electronic and compositional properties of the rear-side of stoichiometric CuInSe2 absorbers; ; ; ; ;
in Progress in Photovoltaics (2020)
2019
Surface characterization of epitaxial Cu-rich CuInSe2 absorbers; ; ; ; ;
in IEEE Photovoltaic Specialists Conference. Conference Record (2019, July)
Physical routes for the synthesis of kesterite; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
in Journal of Physics : Energy (2019)
Variable chemical decoration of extended defects in Cu-poor Cu2ZnSnSe4 thin films; ; ; ; ; ;
in Physical Review Materials (2019), 3
The impact of energy alignment and interfacial recombination on the internal and external open-circuit voltage of perovskite solar cells†; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
in Energy and Environmental Science (2019)
2018
Advanced characterization and in-situ growth monitoring of Cu(In,Ga)Se2 thin films and solar cells; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
in Solar Energy (2018)
High surface recombination velocity limits Quasi-Fermi level splitting in kesterite absorbers;
in Scientific Reports (2018)
2017
Silver Doped Cu2SnS3 Absorber Layers for Solar Cells Application; ; ; ;
in IEEE Journal of Photovoltaics (2017)
Optical properties of Cu2ZnSnSe4 thin films and identification of secondary phases by spectroscopic ellipsometry; ; ; ; ; ; ; ;
in OPTICS EXPRESS (2017), 25(5), 5327-5340
Identifying the Real Minority Carrier Lifetime in Nonideal Semiconductors: A Case Study of Kesterite Materials; ; ; ; ; ; ; ;
in Advanced Energy Materials (2017)
Chemistry and Dynamics of Ge in Kesterite : Toward Band-Gap- Graded Absorbers; ; ; ; ; ; ; ; ; ; ; ; ;
in Chemistry of Materials (2017), 29
Time resolved photoluminescence on Cu(In, Ga)Se-2 absorbers: Distinguishing degradation and trap states; ; ; ; ;
in APPLIED PHYSICS LETTERS (2017), 110(12),
Investigation of the SnS/Cu2ZnSnS4 Interfaces in Kesterite Thin-Film Solar Cells; ; ; ; ; ; ;
in ACS ENERGY LETTERS (2017), 2(5), 976-981
Formation of nanometer-sized Cu-Sn-Se particles in Cu2ZnSnSe4 thin-films and their effect on solar cell efficiency; ; ; ; ;
in ACTA MATERIALIA (2017), 132
2016
Intragrain charge transport in kesterite thin films-Limits arising from carrier localization; ; ; ; ; ; ; ; ;
in JOURNAL OF APPLIED PHYSICS (2016), 120(17),
Radiative recombination from localized states in CZT(S,Se) investigated by combined PL and TRPL at low temperatures; ; ; ;
in IEEE PVSEC proceedings (2016)
Deep Defects in Cu2ZnSnðS;SeÞ4 Solar Cells with Varying Se Content; ; ; ; ; ; ;
in Physical Review Applied (2016)
Optical methodology for process monitoring of chalcopyrite photovoltaic technologies: Application to low cost Cu(In,Ga)(S,Se)2 electrodeposition based processes; ; ; ; ; ; ; ; ; ; ; ;
in Solar Energy Materials and Solar Cells (2016)
Quantitative PL Imaging of Thin Film Solar Cells - Potential and Pitfalls; ;
in IEEE PVSEC proceedings (2016)
Photoluminescence studies in epitaxial CZTSe thin films; ; ; ; ; ; ;
in Journal of Applied Physics (2016), 120
Impact of annealing on electrical properties of Cu2ZnSnSe4 absorber layers; ; ; ; ; ; ;
in Journal of Applied Physics (2016), 120
2015
Detection of a MoSe2 secondary phase layer in CZTSe by spectroscopic ellipsometry; ; ; ; ; ; ;
in JOURNAL OF APPLIED PHYSICS (2015), 118
Multiple phases of Cu2ZnSnSe4 detected by room temperature photoluminescence (vol 116, 073509, 2014); ; ; ;
in JOURNAL OF APPLIED PHYSICS (2015), 118(8),
Highly conductive ZnO films with high near infrared transparency; ; ; ; ; ; ; ; ;
in Progress in Photovoltaics (2015)
Diffuse Electroreflectance of thin-film solar cells: Suppression of interference-related lineshape distortions; ; ; ; ; ; ;
in Applied Physics Letters (2015), 107
Different Bandgaps in Cu2ZnSnSe4: A High Temperature Coevaporation Study; ; ; ; ; ;
in IEEE Journal of Photovoltaics (2015), 5(2), 641-648
Atom probe tomography study of internal interfaces in Cu2ZnSnSe4 thin-films; ; ; ; ; ;
in Journal of Applied Physics (2015), 118
Detection of Cu2Zn5SnSe8 and Cu2Zn6SnSe9 phases in co-evaporated Cu2ZnSnSe4 thin-films; ; ; ; ; ; ; ;
in Applied Physics Letters (2015), 107
2014
Multiple phases of Cu2ZnSnSe4 detected by room temperature photoluminescence; ; ; ;
in Journal of Applied Physics (2014), 116
Assessment of crystal quality and unit cell orientation in epitaxial Cu2ZnSnSe4 layers using polarized Raman scattering; ; ; ; ; ; ;
in OPTICS EXPRESS (2014), 22(23), 28240-28246
Assessment of crystal quality and unit cell orientation in epitaxial Cu2ZnSnSe4 layers using polarized Raman scattering; ; ; ; ; ; ;
in Optics Express (2014), 22
Different Bandgaps in Cu2ZnSnSe4 : a high temperature coevaporation study; ; ; ; ; ;
in IEEE Journal of Photovoltaics (2014)
The band gap of Cu2ZnSnSe4: Effect of order-disorder; ; ; ; ; ; ;
in Applied Physics Letters (2014), 105
Loss mechanisms in kesterite;
in wiley (Ed.) Copper Zinc Tin Sulphide-Based Thin Film Solar Cells (2014)
Direct Evaluation of Defect Distributions From Admittance Spectroscopy; ; ; ;
in IEEE JOURNAL OF PHOTOVOLTAICS (2014), 4
2013
Detecting ZnSe secondary phase in Cu2ZnSnSe4 by room temperature photoluminescence; ; ; ; ; ; ;
in Applied Physics Letters (2013), 102
HCl and Br2-MeOH etching of Cu2ZnSnSe4 polycrystalline absorbers; ; ; ; ; ;
in Thin Solid Films (2013), 535
Cu-Rich Precursors Improve Kesterite Solar Cells; ; ; ; ; ; ; ; ;
in Advanced Energy Materials (2013), 4
Molecular beam epitaxy of Cu2ZnSnSe4 thin films grown on GaAs(001); ; ; ; ;
Scientific Conference (2013, June)
Cu2ZnSnSe4 thin film solar cells produced via coevaporation and annealing including a SnSe2 capping layer; ; ; ; ;
in Progress in Photovoltaics (2013), 22(1), 51-57
Influence of S/Se ratio on series resistance and on dominant recombination pathway in Cu2ZnSn(SSe)4 thin film solar cells; ; ; ;
in Thin Solid Films (2013), 535
Atom probe study of Cu2ZnSnSe4 thin-films prepared by co-evaporation and post-deposition annealing; ; ; ; ; ;
in Applied Physics Letters (2013), 102
Role of high series resistance in admittance spectroscopy of kesterite solar cells; ; ; ;
Scientific Conference (2013)
Admittance spectroscopy in kesterite solar cells: Defect signal or circuit response; ; ; ;
in Applied Physics Letters (2013)
2012
Feedback mechanism for the stability of the band gap of CuInSe2; ; ; ; ; ; ; ; ; ; ;
in Physical Review (2012), 86
2011
Route Toward High-Efficiency Single-Phase Cu2ZnSn(S,Se)4 Thin-Film Solar Cells: Model Experiments and Literature Review; ; ; ; ; ; ;
in IEEE Journal of Photovoltaics (2011)
The Consequences of Kesterite Equilibria for Efficient Solar Cells; ; ;
in Journal of the American Chemical Society (2011), 133
Detection of a ZnSe secondary phase in coevaporated Cu2ZnSnSe4 thin films; ; ; ; ; ; ;
in Applied Physics Letters (2011), 98(101907), 1019071-1019073
2010
Trails of Kilovolt Ions Created by Subsurface Channeling; ; ; ;
in PHYSICAL REVIEW LETTERS (2010), 104(7),
Sputtering at grazing ion incidence: Influence of adatom islands; ; ;
in Physical Review. B (2010), 82(12),
Molecular structure of the H2O wetting layer on Pt(111); ; ; ;
in Physical Review. B (2010), 82(16),
2009
Rapid Coarsening of Ion Beam Ripple Patterns by Defect Annihilation; ; ; ; ;
in PHYSICAL REVIEW LETTERS (2009), 102(14),
Desorption of H2O from Flat and Stepped Pt(111); ; ; ;
in Journal of Physical Chemistry. C, Nanomaterials and interfaces (2009), 113(2), 691-697
Influence of a single adatom on sputtering at grazing incidence - A molecular-dynamics case study of 5 keV Ar impact on Pt (111); ; ;
in SURFACE SCIENCE (2009), 603(2), 320-325
Competition of terrace and step-edge sputtering under oblique-incidence ion impact on a stepped Pt(111) surface; ; ;
in Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms (2009), 267(16), 2769-2773
2008
Step-edge sputtering through grazing incidence ions investigated by scanning tunneling microscopy and molecular dynamics simulations; ; ;
in Physical Review. B (2008), 77(19),
2006
Mechanisms of pattern formation in grazing-incidence ion bombardment of Pt(111); ; ; ; ; ; ;
in Physical Review. B (2006), 73(23),
