Alex REDINGER

Alex REDINGER

Associate professor, FNR ATTRACT Fellow

Fakultät oder Zentrum Faculty of Science, Technology and Communication
Forschungseinheit RU Physics and Materials Science
Postadresse Campus Limpertsberg, Université du Luxembourg
162 A, avenue de la Faïencerie
L-1511 Luxembourg
Büroadresse BS 3.08A
E-Mail
Telefon (+352) 46 66 44 6358
Fax (+352) 46 66 44 36358

Alex Redinger is an associate 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: Donnerstag, den 18. Mai 2017

CV Alex Redinger



Last updated on: 18 Mai 2017

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2019

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See detailVariable chemical decoration of extended defects in Cu-poor Cu2ZnSnSe4 thin films
Schwarz, Torsten; Redinger, Alex; Siebentritt, Susanne; Zirong, Peng; Gault, Baptiste; Raabe, Dierk; Choi, Pyuck-Pa

in Physical Review Materials (2019), 3

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2017

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See detailSilver Doped Cu2SnS3 Absorber Layers for Solar Cells Application
De Wild, Jessica; Babbe, Finn; Robert, Erika; Redinger, Alex; Dale, Phillip

in IEEE Journal of Photovoltaics (2017)

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See detailOptical properties of Cu2ZnSnSe4 thin films and identification of secondary phases by spectroscopic ellipsometry
Demircioglu, Ozden; Salas, Jose Fabio Lopez; Rey, Germain; Weiss, Thomas; Mousel, Marina; Redinger, Alex; Susanne, Siebentritt; Parisi, Juergen; Guetay, Levent

in OPTICS EXPRESS (2017), 25(5), 5327-5340

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See detailIdentifying the Real Minority Carrier Lifetime in Nonideal Semiconductors: A Case Study of Kesterite Materials
Hages, Charles J.; Redinger, Alex; Levcenko, Sergiu; Hempel, Hannes; Koeper, Mark J.; Agrawal, Rakesh; Greier, Dieter; Kaufmann, Christian A.; Unold, Thomas

in Advanced Energy Materials (2017)

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See detailChemistry and Dynamics of Ge in Kesterite : Toward Band-Gap- Graded Absorbers
Marques, José; Stange, Helena; Hages, Charles J.; Schaefer, Norbert; Levcenko, Sergiu; Giraldo, Sergio; Saucedo, Edgardo; Schwarzburg, Klaus; Abou-ras, Daniel; Redinger, Alex; Klaus, Manuela; Genzel, Christoph; Unold, Thomas; Mainz, Roland

in Chemistry of Materials (2017), 29

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See detailTime resolved photoluminescence on Cu(In, Ga)Se-2 absorbers: Distinguishing degradation and trap states
Redinger, Alex; Levcenko, Sergiu; Hages, Charles J.; Dieter, Greiner; Kaufmann, Christian A.; Unold, Thomas

in APPLIED PHYSICS LETTERS (2017), 110(12),

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See detailInvestigation of the SnS/Cu2ZnSnS4 Interfaces in Kesterite Thin-Film Solar Cells
Ren, Yi; Richter, Michael; Keller, Jan; Redinger, Alex; Unold, Thomas; Donzel-Gargand, Olivier; Scragg, Jonathan J. S.; Bjoerkman, Charlotte Platzer

in ACS ENERGY LETTERS (2017), 2(5), 976-981

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See detailFormation of nanometer-sized Cu-Sn-Se particles in Cu2ZnSnSe4 thin-films and their effect on solar cell efficiency
Schwarz, Torsten; Cojocaru-Miredin, Oana; Mousel, Marina; Redinger, Alex; Raabe, Dierk; Choi, Pyuck-Pa

in ACTA MATERIALIA (2017), 132

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2016

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See detailIntragrain charge transport in kesterite thin films-Limits arising from carrier localization
Hempel, Hannes; Redinger, Alex; Repins, Ingrid; Moisan, Camille; Larramona, Gerardo; Dennler, Gilles; Handwerg, Martin; Fischer, Saskia F.; Eichberger, Rainer; Unold, Thomas

in JOURNAL OF APPLIED PHYSICS (2016), 120(17),

See detailRadiative recombination from localized states in CZT(S,Se) investigated by combined PL and TRPL at low temperatures
Kretzschmar, Steffen; Levcenco, Sergej; Just, Justus; Redinger, Alex; Unold, Thomas

in IEEE PVSEC proceedings (2016)

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See detailDeep Defects in Cu2ZnSnðS;SeÞ4 Solar Cells with Varying Se Content
Levcenko, S.; Just, J.; Redinger, Alex; Larramona, G.; Bourdais, S.; Dennler, G.; Jacob, A.; Unold, T.

in Physical Review Applied (2016)

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See detailOptical methodology for process monitoring of chalcopyrite photovoltaic technologies: Application to low cost Cu(In,Ga)(S,Se)2 electrodeposition based processes
Oliva, Florian; Kretzschmar, Steffen; Colombara, Diego; Tombolato, Sara; Ruiz, Carmen Maria; Redinger, Alex; Saucedo, Edgardo; Broussillou; Goislard de Monsabert, Thomas; Unold, Thomas; Dale, Phillip; Izquierdo-Roca; Pérez-Rodríguez, Alejandro

in Solar Energy Materials & Solar Cells (2016)

See detailQuantitative PL Imaging of Thin Film Solar Cells - Potential and Pitfalls
Redinger, Alex; Kretzschmar, Steffen; Unold, Thomas Ieee

in IEEE PVSEC proceedings (2016)

See detailOvercoming the Voc limitation of CZTSe solar cells
Risch, L.; Vauche, L.; Redinger, Alex; Dimitrievska, M.; Sánchez, Y.; Saucedo, E.; Unold, T.; Goislard, T.; Ruiz, C. M.; Escoubas, L.; Simon, J. J.

in IEEE (2016)

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See detailPhotoluminescence studies in epitaxial CZTSe thin films
Sendler, Jan; Thevenin, Maxime; Werner, Florian; Redinger, Alex; Shuyi Li; Hägglund, Carl; Platzer-Björkman, Charlotte; Siebentritt, Susanne

in Journal of Applied Physics (2016), 120

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See detailImpact of annealing on electrical properties of Cu2ZnSnSe4 absorber layers
Weiss, Thomas; Redinger, Alex; Rey, Germain; Schwarz, Torsten; Spies, Maria; Cojocura-Mir edin, Oana; Choi, P. P.; Siebentritt, Susanne

in Journal of Applied Physics (2016), 120

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2015

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See detailDetection of a MoSe2 secondary phase layer in CZTSe by spectroscopic ellipsometry
Demircio glu, Ozden; Mousel, Marina; Redinger, Alex; Rey, Germain; Weiss, Thomas Paul; Siebentritt, Susanne; Riedel, Ingo; Gütay, Levent

in JOURNAL OF APPLIED PHYSICS (2015), 118

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See detailMultiple phases of Cu2ZnSnSe4 detected by room temperature photoluminescence (vol 116, 073509, 2014)
Djemour, Rabie; Redinger, Alex; Mousel, Marina; Guetay, Levent; Siebentritt, Susanne

in JOURNAL OF APPLIED PHYSICS (2015), 118(8),

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See detailHighly conductive ZnO films with high near infrared transparency
Hala, Matej; Fujii, Shohei; Redinger, Alex; Inoue, Yukari; Rey, Germain; Thevenin, Maxime; Depredurand, Valérie; Weiss, Thomas Paul; Bertram, Tobias; Siebentritt, Susanne

in Progress in Photovoltaics: Research and Applications (2015)

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See detailDiffuse Electroreflectance of thin-film solar cells: Suppression of interference-related lineshape distortions
Krämmer, Christoph; Huber, Christian; Redinger, Alex; Sperber, David; Rey, Germain; Siebentritt, Susanne; Kalt, Heinz; Hetteric, Michael

in Applied Physics Letters (2015), 107

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See detailEpitaxial Cu2ZnSnSe4 thin films and devices
Redinger, Alex; Groiss, Heiko; Sendler, Jan; Djemour, Rabie; Regesch, David; Gerthsen, Dagmar; Siebentritt, Susanne

in THIN SOLID FILMS (2015), 582

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See detailDifferent Bandgaps in Cu2ZnSnSe4: A High Temperature Coevaporation Study
Redinger, Alex; Sendler, Jan; Djemour, Rabie; Weiss, Thomas P.; Rey, Germain; Dale, Phillip; Siebentritt, Susanne

in IEEE Journal of Photovoltaics (2015), 5(2), 641-648

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See detailAtom probe tomography study of internal interfaces in Cu2ZnSnSe4 thin-films
Schwarz, T.; Cojocaru-Mir edin, O.; Choi, P.; Mousel, Marina; Redinger, Alex; Siebentritt, Susanne; Raabe, D.

in Journal of Applied Physics (2015), 118

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See detailDetection of Cu2Zn5SnSe8 and Cu2Zn6SnSe9 phases in co-evaporated Cu2ZnSnSe4 thin-films
Schwarz, Torsten; Marques, Miguel A.L.; Botti, Silvana; Mousel, Marina; Redinger, Alex; Siebentritt, Susanne; Cojocaru-Mir edin, Oana; Raabe, Dierk; Choi, Pyuck-Pa

in Applied Physics Letters (2015), 107

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2014

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See detailMultiple phases of Cu2ZnSnSe4 detected by room temperature photoluminescence
Djemour, Rabie; Redinger, Alex; Mousel, Marina; Gütay, Levent; Siebentritt, Susanne

in Journal of Applied Physics (2014), 116

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See detailAssessment of crystal quality and unit cell orientation in epitaxial Cu2ZnSnSe4 layers using polarized Raman scattering
Kraemmer, Christoph; Lang, Mario; Redinger, Alex; Johannes, Sachs; Gao, Chao; Kalt, Heinz; Siebentritt, Susanne; Hetterich, Michael

in OPTICS EXPRESS (2014), 22(23), 28240-28246

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See detailAssessment of crystal quality and unit cell orientation in epitaxial Cu2ZnSnSe4 layers using polarized Raman scattering
Krämmer, Christoph; Lang Mario; Redinger, Alex; Sachs, Johannes; Chao Gao; Kalt, Heinz; Siebentritt, Susanne; Hetterich, Michael

in Optics Express (2014), 22

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See detailCu-Rich Precursors Improve Kesterite Solar Cells
Mousel, Marina; Schwarz, Torsten; Djemour, Rabie; Weiss, Thomas P.; Sendler, Jan; Malaquias, Joao C.; Redinger, Alex; Cojocaru-Miredin, Oana; Choi, Pyuck-Pa; Siebentritt, Susanne

in ADVANCED ENERGY MATERIALS (2014), 4(2),

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See detailEpitaxial Cu2ZnSnSe4 thin films and devices
Redinger, Alex; Groiss, Heiko; Sendler, Jan; Djemour, Rabie; Regesch, David; Gerthsen, Dagmar; Siebentritt, Susanne

in Thin Solid Films (2014)

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See detailCu2ZnSnSe4 thin film solar cells produced via co-evaporation and annealing including a SnSe2 capping layer
Redinger, Alex; Mousel, Marina; Djemour, Rabie; Guetay, Levent; Valle, Nathalie; Siebentritt, Susanne

in PROGRESS IN PHOTOVOLTAICS (2014), 22(1), 51-57

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See detailDifferent Bandgaps in Cu2ZnSnSe4 : a high temperature coevaporation study
Redinger, Alex; Sendler, Jan; Djemour, Rabie; Weiss, Thomas Paul; Rey, Germain; Dale, Phillip; Siebentritt, Susanne

in IEEE Journal of Photovoltaics (2014)

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See detailThe band gap of Cu2ZnSnSe4: Effect of order-disorder
Rey, Germain; Redinger, Alex; Sendler, Jan; Weiss, Thomas Paul; Thevenin, Maxime; Guennou, M.; El Adib, B.; Siebentritt, Susanne

in Applied Physics Letters (2014), 105

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See detailLoss mechanisms in kesterite
Siebentritt, Susanne; Redinger, Alex

in wiley (Ed.) Copper Zinc Tin Sulphide-Based Thin Film Solar Cells (2014)

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See detailDirect Evaluation of Defect Distributions From Admittance Spectroscopy
Weiss, Thomas Paul; Redinger, Alex; Regesch, David; Mousel, Marina; Siebentritt, Susanne

in IEEE JOURNAL OF PHOTOVOLTAICS (2014), 4

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2013

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See detailSemiconductor material and method of production
Berg, Dominik; Redinger, Alex; Dale, Phillip; Siebentritt, Susanne

Patent (2013)

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See detailDetecting ZnSe secondary phase in Cu2ZnSnSe4 by room temperature photoluminescence
Djemour, Rabie; Mousel, Marina; Redinger, Alex; Gütay, Levent; Crossay, Alexandre; Colombara, Diego; Dale, Phillip; Siebentritt, Susanne

in Applied Physics Letters (2013), 102

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See detailThe three A symmetry Raman modes of kesterite in Cu2ZnSnSe4
Djemour, Rabie; Redinger, Alex; Mousel, Marina; Gütay, Levent; Fontané, Xavier; Izquierdo-Roca, Victor; Pérez-Rodríguez, Alejandro; Siebentritt, Susanne

in Optics Express (2013)

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See detailHCl and Br2-MeOH etching of Cu2ZnSnSe4 polycrystalline absorbers
Mousel, Marina; Redinger, Alex; Djemour, Rabie; Arasimowicz, Monika; Valle, Nathalie; Dale, Phillip; Siebentritt, Susanne

in Thin Solid Films (2013), 535

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See detailCu-rich precursors improve kesterite solar cells
Mousel, Marina; Schwarz, Torsten; Djemour, Rabie; Weiss, Thomas Paul; Sendler, Jan; Redinger, Alex; Cojocaru-Miredin, Oana; Siebentritt, Susanne; Malaquias, Joao; Pyuk-Pa, Choi

in Advanced Energy Materials (2013), 4

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See detailMolecular beam epitaxy of Cu2ZnSnSe4 thin films grown on GaAs(001)
Redinger, Alex; Djemour, Rabie; Weiss, Thomas Paul; Sendler, Jan; Siebentritt, Susanne; Gütay, Levent

Scientific Conference (2013, June)

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See detailCu2ZnSnSe4 thin film solar cells produced via coevaporation and annealing including a SnSe2 capping layer
Redinger, Alex; Mousel, Marina; Djemour, Rabie; Gütay, Levent; Valle, Nathalie; Siebentritt, Susanne

in Progress in Photovoltaics (2013)

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See detailInfluence of S/Se ratio on series resistance and on dominant recombination pathway in Cu2ZnSn(SSe)4 thin film solar cells
Redinger, Alex; Mousel, Marina; Hilaire Wolter, Max; Valle, Nathalie; Siebentritt, Susanne

in Thin Solid Films (2013), 535

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See detailMethod for manufacturing a semiconductor thin film
Redinger, Alex; Mousel, Marina; Siebentritt, Susanne

Patent (2013)

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See detailMethod for manufacturing a semiconductor thin film
Redinger, Alex; Mousel, Marina; Siebentritt, Susanne

Patent (2013)

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See detailAtom probe study of Cu2ZnSnSe4 thin-films prepared by co-evaporation and post-deposition annealing
Schwarz; Cojocaru-Mirédin, O.; Choi, P.; Mousel, Marina; Redinger, Alex; Siebentritt, Susanne; Raabe, D.

in Applied Physics Letters (2013), 102

See detailRole of high series resistance in admittance spectroscopy of kesterite solar cells
Weiss, Thomas Paul; Redinger, Alex; Luckas, Jennifer Maria; Mousel, Marina; Siebentritt, Susanne

Scientific Conference (2013)

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See detailAdmittance spectroscopy in kesterite solar cells: Defect signal or circuit response
Weiss, Thomas Paul; Redinger, Alex; Luckas, Jennifer Maria; Mousel, Marina; Siebentritt, Susanne

in Applied Physics Letters (2013)

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2012

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See detailLone conduction band in Cu2ZnSnSe4
Gütay, Levent; Redinger, Alex; Djemour, Rabie; Siebentritt, Susanne

in Applied Physics Letters (2012), 100

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See detailFeedback mechanism for the stability of the band gap of CuInSe2
Gutay, Levent; Regesch, David; Larsen, Jes K.; Aida, Yasuhiro; Depredurand, Valerie; Redinger, Alex; Caneva, Sabina; Schorr, Susan; Stephan, Christiane; Vidal, Julien; Botti, Silvana; Siebentritt, Susanne

in Physical Review (2012), 86

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2011

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See detailRoute Toward High-Efficiency Single-Phase Cu2ZnSn(S,Se)4 Thin-Film Solar Cells: Model Experiments and Literature Review
Redinger, Alex; Berg, Dominik M.; Dale, Phillip; Djemour, Rabie; Gütay, Levent; Eisenbarth, Tobias; Valle, Nathalie; Siebentritt, Susanne

in IEEE Journal of Photovoltaics (2011)

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See detailThe Consequences of Kesterite Equilibria for Efficient Solar Cells
Redinger, Alex; Berg, M. Dominik; Dale, Phillip; Siebentritt, Susanne

in Journal of the American Chemical Society (2011), 133

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See detailDetection of a ZnSe secondary phase in coevaporated Cu2ZnSnSe4 thin films
Redinger, Alex; Hönes, Katja; Fontané, Xavier; Izquierdo-Roca, Victor; Saucedo, Edgardo; Valle, Nathalie; Pérez-Rodriguez, Alejandro; Siebentritt, Susanne

in Applied Physics Letters (2011), 98(101907), 1019071-1019073

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2010

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See detailCoevaporation of Cu2ZnSnSe4 thin films
Redinger, Alex; Siebentritt, Susanne

in Applied Physics Letters (2010), 97(9), 092111-1

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See detailTrails of Kilovolt Ions Created by Subsurface Channeling
Redinger, Alex; Standop, Sebastian; Michely, Thomas; Yudi, Rosandi; Urbassek, Herbert M.

in PHYSICAL REVIEW LETTERS (2010), 104(7),

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See detailSputtering at grazing ion incidence: Influence of adatom islands
Rosandi, Yudi; Redinger, Alex; Michely, Thomas; M., Urbassek Herbert

in PHYSICAL REVIEW B (2010), 82(12),

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See detailMolecular structure of the H2O wetting layer on Pt(111)
Standop, Sebastian; Redinger, Alex; Morgenstern, Markus; Michely, Thomas; Busse, Carsten

in PHYSICAL REVIEW B (2010), 82(16),

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2009

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See detailRapid Coarsening of Ion Beam Ripple Patterns by Defect Annihilation
Hansen, Henri; Redinger, Alex; Messlinger, Sebastian; Georgiana, Stoian; Krug, Joachim; Michely, Thomas

in PHYSICAL REVIEW LETTERS (2009), 102(14),

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See detailDesorption of H2O from Flat and Stepped Pt(111)
Picolin, Alexander; Busse, Carsten; Redinger, Alex; Morgenstern, Markus; Michely, Thomas

in JOURNAL OF PHYSICAL CHEMISTRY C (2009), 113(2), 691-697

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See detailInfluence of a single adatom on sputtering at grazing incidence - A molecular-dynamics case study of 5 keV Ar impact on Pt (111)
Rosandi, Yudi; Redinger, Alex; Michely, Thomas; M., Urbassek Herbert

in SURFACE SCIENCE (2009), 603(2), 320-325

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See detailCompetition of terrace and step-edge sputtering under oblique-incidence ion impact on a stepped Pt(111) surface
Rosandi, Yudi; Redinger, Alex; Michely, Thomas; M., Urbassek Herbert

in NUCLEAR INSTRUMENTS METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS (2009), 267(16), 2769-2773

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2008

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See detailSpiral growth and step edge barriers
Redinger, Alex; Ricken, Oliver; Kuhn, Philipp; Raetz, Andreas; Voigt, Axel; Krug, Joachim; Michely, Thomas

in PHYSICAL REVIEW LETTERS (2008), 100(3),

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See detailStep-edge sputtering through grazing incidence ions investigated by scanning tunneling microscopy and molecular dynamics simulations
Redinger, Alex; Rosandi, Yudi; Urbassek, Herbert M.; Thomas, Michely

in PHYSICAL REVIEW B (2008), 77(19),

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2006

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See detailMechanisms of pattern formation in grazing-incidence ion bombardment of Pt(111)
Hansen, Henri; Redinger, Alex; Messlinger, Sebastian; Georgiana, Stoian; Rosandi, Yudi; Urbassek, Herbert M.; Linke, Udo; Michely, Thomas

in PHYSICAL REVIEW B (2006), 73(23),

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