• Unveiling the role of copper content in the crystal structure and phase stability of epitaxial Cu(In,Ga)S2 films on GaP/Si(001).
  Eugène Bertin, Olivier Durand, Antoine Létoublon, Charles Cornet, Ludovic Arzel, Leo Choubrac, Rozenn Bernard, Eric Gautron, Sylvie Harel, Maud Jullien, Tony Rohel, Lionel Assmann and Nicolas Barreau.
  Materials Science in Semiconductor Processing 2023, 166, 107685
• On the role of sodium and copper off-stoichiometry in Cu (In,Ga)S-2 for photovoltaic applications: Insights from the investigation of more than 500 samples.
  Leo Choubrac, Eugène Bertin, Fabien Pineau, Ludovic Arzel, Thomas Lepetit, Lionel Assmann, Thamer Aloui, Sylvie Harel and Nicolas Barreau.
  Progress in Photovoltaics 2023, 31, 971-980
• RbF-related post-deposition treatments on Cu(In,Ga)(S,Se)2 absorbers: The role of the chalcogen atmosphere.
  Polyxeni Tsoulka, Sylvie Harel, Ludovic Arzel, Alfons Weber, Thomas Niesen, Pablo Reyes-Figueroa, Hossam ElAnzeery, Thomas Dalibor and Nicolas Barreau.
  Appl. Surf. Sci. 2023, 614, 155830

• Ternary Planar Heterojunction Organic Solar Cells Based on the Ternary Active Layers: α-6T/AlPcCl/C60.
  Hajar Ftouhi, Hind Lamkaouane, Mustapha Diani, Guy Louarn, Ludovic Arzel, Jean-Christian Bernede, Mohammed Addou and Linda Cattin.
  Solar 2022, 2, 375-384
• Investigation of co-evaporated polycrystalline Cu(In,Ga)S2 thin film yielding 16.0 % efficiency solar cell.
  Nicolas Barreau, Eugène Bertin, Alexandre Crossay, Olivier Durand, Ludovic Arzel, Sylvie Harel, Thomas Lepetit, Lionel Assmann, Eric Gautron and Daniel Lincot.
  EPJ Photovolt. 2022, 13, 17
• Modelling of photovoltaic production and electrochemical storage in an autonomous solar drone.
  Mickael Cosson, Benjamin David, Ludovic Arzel, Philippe Poizot and Ahmed Rhallabi.
  eScience 2022, 2, 235-241

• Alternative alkali fluoride post-deposition treatment under elemental sulfur atmosphere for high-efficiency Cu(In,Ga)Se2-based solar cells.
  Polyxeni Tsoulka, Alexandre Crossay, Ludovic Arzel, Sylvie Harel and Nicolas Barreau.
  Progress in Photovoltaics: Research and Applications 2021, n/a
• Power Conversion Efficiency Improvement of Planar Organic Photovoltaic Cells Using an Original Hybrid Electron-Transporting Layer.
  Linda Cattin, Guy Louarn, Ludovic Arzel, Nicolas Stephant, Mustapha Morsli and Jean Christian Bernede.
  Acs Omega 2021, 6, 6614-6622

• Improved CuGaSe2 absorber properties through a modified co-evaporation process.
  Polyxeni Tsoulka, Adrien Rivalland, Ludovic Arzel and Nicolas Barreau.
  Thin Solid Films 2020, 709, 138224
• Influence of Sulfur Evaporation during or after KF-Post Deposition Treatment On Cu(In,Ga)Se-2/CdS Interface Formation.
  Sylvie Harel, Ludovic Arzel, Thomas Lepetit, Pawel Zabierowski and Nicolas Barreau.
  ACS Appl. Mater. Interfaces 2020, 12, 46953-46962
• Detrimental copper-selenide bulk precipitation in CuIn1-xGaxSe2 thin-film solar cells. A possible reason for the limited performance at large x?.
  Polyxeni Tsoulka, Nicolas Barreau, Isabelle Braems, Ludovic Arzel and Sylvie Harel.
  Thin Solid Films 2020, 712, 138297
• Sn Substitution by Ge: Strategies to Overcome the Open-Circuit Voltage Deficit of Kesterite Solar Cells.
  Leo Choubrac, Marcus Bär, Xeniya Kozina, Roberto Felix, Regan G. Wilks, Guy Brammertz, Sergiu Levcenko, Ludovic Arzel, Nicolas Barreau, Sylvie Harel, Marc Meuris and Bart Vermang.
  ACS Appl. Energy Mater. 2020, 3, 5830-5839
• On the use of multiple stacked active layers in organic photovoltaic cells.
  L. Cattin, Z. El Jouad, M B. Siad, M. Morsli, L. Arzel, E. Ortega, G. Louarn, G. Neculqueo, H. Lamkaouane, A. Khelil, M. Addou, M A. del Valle, F. Mir and J C. Bernede.
  J Mater Sci 2020, 55, 9762-9774
• On the contribution of fullerene to the current of planar heterojunction organic solar cells.
  L. Cattin, M A. Cherif, El Z. Jouad, H. Ftouhi, E M. El-Menyawy, El A. Mahlali, S. Touihri, L. Arzel, M. Addou, P. Torchio and J C. Bernede.
  J. Phys. D: Appl. Phys. 2020, 53, 225501
• The effect of the band structure on the Voc value of ternary planar heterojunction organic solar cells based on pentacene, boron subphthalocyanine chloride and different electron acceptors.
  Z. El Jouad, E M. El-Menyawy, G. Louarn, L. Arzel, M. Morsli, M. Addou, J C. Bernede and L. Cattin.
  J. Phys. Chem. Solids 2020, 136, 109142
• Smart geometrical approach to intercalate a highly absorbing and quite resistive electron donor layer in ternary organic photovoltaic cells.
  L. Cattin, C. Cabanetos, A. El Mahlali, L. Arzel, M. Morsli, P. Blanchard and J C. Bernede.
  Org. Electron. 2020, 76, UNSP 105463

• Effects of KF and RbF post deposition treatments on the growth of the CdS buffer layer on CIGS thin films - a comparative study.
  Tim Kodalle, Leo Choubrac, Ludovic Arzel, Rutger Schlatmann, Nicolas Barreau and Christian A. Kaufmann.
  Sol. Energy Mater. Sol. Cells 2019, 200, UNSP 109997
• Facile enhancement of bulk heterojunction solar cells performance by utilizing PbSe nanorods decorated with graphene.
  E M. El-Menyawy, L. Cattin, J C. Bernede, Guy Louarn and Ludovic Arzel.
  J. Colloid Interface Sci. 2019, 553, 117-125
• Wide band gap kesterite absorbers for thin film solar cells: potential and challenges for their deployment in tandem devices.
  Bart Vermang, Guy Brammertz, Marc Meuris, T. Schnabel, E. Ahlswede, Leo Choubrac, Sylvie Harel, Christophe Cardinaud, Ludovic Arzel, Nicolas Barreau, Joop van Deelen, Pieter-Jan Bolt and Patrice Bras.
  Sustainable Energy & Fuels 2019, 3, 2246-2259
• 17.2% efficiency Culn(1-x)Ga(x)Se(2) thin-film based mini-module thanks to alternative architecture yielding 81% fill factor.
  Justine Lorthioir, Ludovic Arzel, Stephane Ginestar, Lionel Assmann and Nicolas Barreau.
  Epj Photovoltaics 2019, 10, 4
• Impact of KF-post deposition treatment on Cu(In,Ga)Se-2 surface and Cu(In, Ga)Se-2/CdS interface sulfurization.
  S. Harel, P. Jonnard, T. Lepetit, L. Arzel and N. Barreau.
  Appl. Surf. Sci. 2019, 473, 1062-1065

• Impact of KF Post-Deposition Treatment on Aging of the Cu(In,Ga)Se-2 Surface and Its Interface with CdS.
  Nicoleta Nicoara, Sylvie Harel, Thomas Lepetit, Ludovic Arzel, Nicolas Barreau and Sascha Sadewasser.
  Acs Applied Energy Materials 2018, 1, 2681-2688
• Highlighting the possibility of parallel mechanism in planar ternary photovoltaic cells.
  L. Cattin, Z. El Jouad, M B. Siad, Mohammed A. Krarroubi, G. Neculqueo, L. Arzel, N. Stephant, Mastropasqua M. Talamo, F. Martinez, M. Addou, A. Khelil, M. Morsli, P. Blanchard and J C. Bernede.
  AIP Adv. 2018, 8, 115329
• Comparison of performances of three active layers cascade OPVCs with those obtained from corresponding bi-layers.
  L. Cattin, Z. El Jouad, L. Arzel, G. Neculqueo, M. Morsli, F. Martinez, M. Addou and J C. Bernede.
  Solar Energy 2018, 171, 621-628
• 7.6% CZGSe Solar Cells Thanks to Optimized CdS Chemical Bath Deposition.
  Leo Choubrac, Guy Brammertz, Nicolas Barreau, Ludovic Arzel, Sylvie Harel, Marc Meuris and Bart Vermang.
  Physica Status Solidi a-Applications and Materials Science 2018, 215, 1800043

• KF post deposition treatment in co-evaporated Cu(In,Ga)Se-2 thin film solar cells: Beneficial or detrimental effect induced by the absorber characteristics.
  Thomas Lepetit, Sylvie Harel, Ludovic Arzel, Guy Ouvrard and Nicolas Barreau.
  Progress in Photovoltaics 2017, 25, 1068-1076
• High {Efficiency} {Solar} {Cell} {Based} on {Full} {PVD} {Processed} {Cu}({In},{Ga}){Se}-2/{CdIn}2S4 {Heterojunction}.
  Nicolas Barreau, Agathe Frelon, Thomas Lepetit, Eric Gautron, Nicolas Gautier, Rodrigo Ribeiro-Andrade, Nicoleta Nicoara, Sascha Sadewasser, Pawel Zabierowski, Ludovic Arzel, Leo Choubrac, Sylvie Harel, Catherine Deudon, Camille Latouche, Stephane Jobic, Maite Caldes, Lionel Assmann, Polyxeni Tsoulka, Emmanuel V. Pean, Justine Lorthioir, Frederic Geschier, Isabelle Braems, Matthieu Moret, Olivier Briot and Guy Ouvrard.
  Solar Rrl 2017, 1, UNSP 1700140
• Evaluation of different buffer materials for solar cells with wide-gap Cu2ZnGeSxSe4-x absorbers.
  T. Schnabel, M. Seboui, A. Bauer, L. Choubrac, L. Arzel, S. Harel, N. Barreau and E. Ahlswede.
  RSC Adv. 2017, 7, 40105-40110
• Influence of Na on grain boundary and properties of Cu(In,Ga)Se-2 solar cells.
  Mohit Raghuwanshi, Emmanuel Cadel, Sebastien Duguay, Ludovic Arzel, Nicolas Barreau and Philippe Pareige.
  Prog. Photovoltaics 2017, 25, 367-375
• Effect of the KF post-deposition treatment on grain boundary properties in Cu(In, Ga)Se-2 thin films.
  N. Nicoara, Th Lepetit, L. Arzel, S. Harel, N. Barreau and S. Sadewasser.
  Sci Rep 2017, 7, 41361

• Coevaporated KInSe2: A Fast Alternative to KF Postdeposition Treatment in High-Efficiency Cu(In,Ga)Se-2 Thin Film Solar Cells.
  Thomas Lepetit, Sylvie Harel, Ludovic Arzel, Guy Ouvrard and Nicolas Barreau.
  IEEE J. Photovolt. 2016, 6, 1316-1320

• Depth Resolved Preferential Orientation Of Cu(In,Ga)Se-2 Thin Films Based On The 112 Peak Model.
  Tomasz Drobiazg, Ludovic Arzel, Nicolas Barreau and Pawel Zabierowski.
  2015 {Ieee} 42nd {Photovoltaic} {Specialist} {Conference} (pvsc) 2015, 23
• High excitation photoluminescence effects as a probing tool for the growth of Cu(In,Ga)Se-2.
  Matthieu Moret, Olivier Briot, Bernard Gil, Thomas Lepetit, Ludovic Arzel, Nicolas Barreau, A. Freundlich, J F. Guillemoles and M. Sugiyama.
  Physics {Simulation} and {Photonic} {Engineering} of {Photovoltaic} {Devices} {Iv} 2015, 23, 93581A
• Effect of the chemical composition of co-sputtered Zn(O,S) buffer layers on Cu(In,Ga)Se-2 solar cell performance.
  M. Buffiere, S. Harel, C. Guillot-Deudon, L. Arzel, N. Barreau and J. Kessler.
  Phys. Status Solidi A-Appl. Mat. 2015, 212, 282-290
• Minimizing metastabilities in Cu(In,Ga)Se-2/(CBD)Zn (S,O,OH)/i-ZnO-based solar cells.
  Marie Buffiere, Nicolas Barreau, Ludovic Arzel, Pawel Zabierowski and John Kessler.
  Prog. Photovoltaics 2015, 23, 462-469
• Defect levels in Cu(In,Ga)Se-2 polycrystalline layers by sub-bandgap photo-induced current transient spectroscopy.
  K. Macielak, M. Igalson, P. Zabierowski, N. Barreau and L. Arzel.
  Thin Solid Films 2015, 582, 383-386
• Impact of DC-power during Mo back contact sputtering on the alkali distribution in Cu(In,Ga)Se-2-based thin film solar cells.
  T. Lepetit, D. Mangin, E. Gautron, M. Tomassini, S. Harel, L. Arzel and N. Barreau.
  Thin Solid Films 2015, 582, 304-307
• Influence of indium/gallium gradients on the Cu(In, Ga)Se-2 devices deposited by the co-evaporation without recrystallisation.
  Tomasz Drobiazg, Ludovic Arzel, Adem Donmez, Pawel Zabierowski and Nicolas Barreau.
  Thin Solid Films 2015, 582, 47-50
• Influence of post-deposition selenium supply on Cu(In, Ga)Se-2-based solar cell properties.
  N. Barreau, P. Zabierowski, L. Arzel, M. Igalson, K. Macielak, A. Urbaniak, T. Lepetit, T. Painchaud, A. Doenmez and J. Kessler.
  Thin Solid Films 2015, 582, 43-46
• Na distribution in Cu(In,Ga)Se-2 thin films: Investigation by atom probe tomography.
  F. Couzinie-Devy, E. Cadel, N. Barreau, L. Arzel and P. Pareige.
  Scr. Mater. 2015, 104, 83-86
• KCN Chemical Etch for Interface Engineering in Cu2ZnSnSe4 Solar Cells.
  Marie Buffiere, Guy Brammertz, Sylvester Sahayaraj, Maria Batuk, Samira Khelifi, Denis Mangin, Abdel-Aziz El Mel, Ludovic Arzel, Joke Hadermann, Marc Meuris and Jef Poortmans.
  ACS Appl. Mater. Interfaces 2015, 7, 14690-14698
• Structural properties of In2Se3 precursor layers deposited by spray pyrolysis and physical vapor deposition for CuInSe2 thin-film solar cell applications.
  P. Reyes-Figueroa, T. Painchaud, T. Lepetit, S. Harel, L. Arzel, Junsin Yi, N. Barreau and S. Velumani.
  Thin Solid Films 2015, 587, 112-116

• Impact of Mo density on Mo/CIGSe interfaces, an XPS study..
  S. Harel, M. Tomassini, L. Arzel, E. Gautron and N. Barreau.
  2014 Ieee 40th Photovoltaic Specialist Conference (pvsc) 2014, 425-430
• Oxidation of In2Se3 Precursor Films and its Effects on Preparation of CuInSe2 based Thin Film Solar Cells.
  P. Reyes-Figueroa, S. Velumani, T. Painchaud, L. Arzel and N. Barreau.
  2014 11th International Conference on Electrical Engineering, Computing Science and Automatic Control (cce) 2014
• Influence of grain boundary modification on limited performance of wide bandgap Cu(In,Ga)Se-2 solar cells.
  M. Raghuwanshi, E. Cadel, P. Pareige, S. Duguay, F. Couzinie-Devy, L. Arzel and N. Barreau.
  Appl. Phys. Lett. 2014, 105, 013902
• Cu(In,Ga)Se-2 absorber thinning and the homo-interface model: Influence of Mo back contact and 3-stage process on device characteristics.
  E. Leonard, L. Arzel, M. Tomassini, P. Zabierowski, D. Fuertes Marron and N. Barreau.
  J. Appl. Phys. 2014, 116, 074512

• Influence of Mo back contact porosity on co-evaporated Cu(In,Ga)Se2 thin film properties and related solar cell.
  P. Bommersbach, L. Arzel, M. Tomassini, E. Gautron, C. Leyder, M. Urien, D. Dupuy and N. Barreau.
  Prog. Photovoltaics 2013, 21, 332-343
• Microstructural characterization of chemical bath deposited and sputtered Zn(O,S) buffer layers.
  E. Gautron, M. Buffiere, S. Harel, L. Assmann, L. Arzel, L. Brohan, J. Kessler and N. Barreau.
  Thin Solid Films 2013, 535, 175-179
• Composition and structural study of solution-processed Zn(S,O,OH) thin films grown using H2O2 based deposition route.
  M. Buffiere, E. Gautron, T. Hildebrandt, S. Harel, C. Guillot-Deudon, L. Arzel, N. Naghavi, N. Barreau and J. Kessler.
  Thin Solid Films 2013, 535, 171-174

• Study of the electronic properties of wide band gap CIGSe solar cells: Influence of copper off-stoichiometry.
  A. Darga, W. Favre, Morgane Fruzzetti, J -P. Kleider, B. Morel, D. Mencaraglia, P. Yu, Hakim Marko, Ludovic Arzel, Nicolas Barreau, Sebastien Noel and John Kessler.
  J. Non-Cryst. Solids 2012, 358, 2428-2430
• Investigation of intergrain compounds in sputtered Mo films applied in CuIn1-xGaxSe2-based solar cell.
  E. Gautron, M. Tomassini, L. Arzel and N. Barreau.
  Surf. Coat. Technol. 2012, 211, 29-32

• Fast chemical bath deposition of Zn(O,S) buffer layers for Cu(In,Ga)Se-2 solar cells.
  M. Buffiere, S. Harel, L. Arzel, C. Deudon, N. Barreau and J. Kessler.
  Thin Solid Films 2011, 519, 7575-7578
• Investigation of Cu(In,Ga)Se-2/In2S3 diffuse interface by Raman scattering.
  C. Laurencic, L. Arzel, F. Couzinie-Devy and N. Barreau.
  Thin Solid Films 2011, 519, 7553-7555
• Influence of Cu off-stoichiometry on wide band gap CIGSe solar cells.
  Hakim Marko, Ludovic Arzel, Arouna Darga, Nicolas Barreau, Sebastien Noel, Denis Mencaraglia and John Kessler.
  Thin Solid Films 2011, 519, 7228-7231
• Fast Cu(In,Ga)Se-2 precursor growth: Impact on solar cell.
  T. Painchaud, N. Barreau, L. Arzel and J. Kessler.
  Thin Solid Films 2011, 519, 7221-7223
• Atom probe study of Cu-poor to Cu-rich transition during Cu(In,Ga)Se-2 growth.
  F. Couzinie-Devy, E. Cadel, N. Barreau, L. Arzel and P. Pareige.
  Appl. Phys. Lett. 2011, 99, 232108

• Characterization of (In1-xAlx)(2)S-3 thin films grown by co-evaporation.
  F. Couzinie-Devy, L. Arzel, N. Barreau, C. Guillot-Deudon, S. Harel, A. Lafond and J. Kessler.
  J. Cryst. Growth 2010, 312, 502-506
• Recrystallization of CIGSe layers grown by three-step processes: A model based on grain boundary migration.
  N. Barreau, T. Painchaud, F. Couzinie-Devy, L. Arzel and J. Kessler.
  Acta Mater. 2010, 58, 5572-5577