• 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

• 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

• 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

• 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

• 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
• 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
• 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
• 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
• Influence of Mo/MoSe2 microstructure on the damp heat stability of the Cu(In,Ga)Se2 back contact molybdenum.
  Mirjam Theelen, Sylvie Harel, Melvin Verschuren, Mathieu Tomassini, Arjan Hovestad, Nicolas Barreau, Jurgen van Berkum, Zeger Vroon and Miro Zeman.
  Thin Solid Films 2016, 612, 381-392

• 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
• 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
• 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
• Surface composition deviation of Cu2ZnSnS4 derivative powdered samples.
  S. Harel, C. Guillot-Deudon, L. Choubrac, J. Hamon and A. Lafond.
  Appl. Surf. Sci. 2014, 303, 107-110

• The impact of selenisation on damp heat degradation of the CIGS back contact molybdenum.
  Mirjam Theelen, Matthieu Tomassini, Nicolas Barreau, Henk Steijvers, Annalisa Branca, Sylvie Harel, Zeger Vroon and Miro Zeman.
  2012 {Ieee} 38th {Photovoltaic} {Specialists} {Conference} (pvsc), {Vol} 2 2013, 52
• 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
• Novel Soft-Chemistry Route of Ag2Mo3O10 center dot 2H(2)O Nanowires and in Situ Photogeneration of a Ag@Ag2Mo3O10 center dot 2H(2)O Plasmonic Heterostructure.
  Khadija Hakouk, Philippe Deniard, Luc Lajaunie, Catherine Guillot-Deudon, Sylvie Harel, Zeyan Wang, Baibiao Huang, Hyun-Joo Koo, Myung-Hwan Whangbo, Stephane Jobic and Remi Dessapt.
  Inorg. Chem. 2013, 52, 6440-6449

• 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

• 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
• Structural investigation of the Cu2Se-In2Se3-Ga2Se3 phase diagram, X-ray photoemission and optical properties of the Cu1-z(In0.5Ga0.5)(1+) Se-z/3(2) compounds.
  M. Souilah, A. Lafond, C. Guillot-Deudon, S. Harel and M. Evain.
  J. Solid State Chem. 2010, 183, 2274-2280

• Electronic structure of NaxCu1-xIn5S8 compounds: X-ray photoemission spectroscopy study and band structure calculations.
  Catherine Guillot-Deudon, Sylvie Harel, Arezki Mokrani, Alain Lafond, Nicolas Barreau, Vincent Fernandez and John Kessler.
  Phys. Rev. B 2008, 78, 235201

• Structural study and electronic band structure investigations of the solid solution NaxCu1-xIn5S8 and its impact on the Cu(In,Ga)Se-2/In2S3 interface of solar cells.
  A. Lafond, C. Guillot-Deudon, S. Harel, A. Mokrani, N. Barreau, S. Gall and J. Kessler.
  Thin Solid Films 2007, 515, 6020-6023