  | Babbe, F., Nicoara, N., Guthrey, H., Valle, N., Ramirez Sanchez, O., Aureau, D., Elanzeery, H., Deepanjan, S., Virtuoso, J. L., Audinot, J.-N., Zelenina, A., Gharabeiki, S., Wirtz, T., Siebentritt, S., Dale, P., sadewasser, S., & Colombara, D. (2023). Vacuum-Healing of Grain Boundaries in Sodium-Doped CuInSe2 Solar Cell Absorbers. Advanced Energy Materials, 2204183, 1-11. doi:10.1002/aenm.202204183  Peer Reviewed verified by ORBi |
 | Sood, M., Urbanaik, A., Kameni Boumenou, C., Weiss, T., Elanzeery, H., Babbe, F., Werner, F., Melchiorre, M., & Siebentritt, S. (2021). Near surface defects: Cause of deficit between internal and external open-circuit voltage in solar cells. Progress in Photovoltaics. doi:10.1002/pip.3483 Peer Reviewed verified by ORBi |
 | Colombara, D., Elanzeery, H., Nicoara, N., Sharma, D., Claro, M., Schwartz, T., Koprek, A., Wolter, M., Melchiorre, M., Sood, M., Valle, N., Bondarchuk, O., Babbe, F., Spindler, C., Cojocaru-Miredin, O., Raabe, D., Dale, P., Sadewasser, S., & Siebentritt, S. (2020). Chemical instability at chalcogenide surfaces impacts chalcopyrite devices well beyond the surface. Nature Communications. doi:10.1038/s41467-020-17434-8 Peer Reviewed verified by ORBi |
 | Siopa, D., El Hajraoui, K., Tombolato, S., Babbe, F., Lomuscio, A., Wolter, M., Anacleto, Abderrafi, K., Deepak, F. L., Sadewasser, S., & Dale, P. (2020). Micro‐sized thin‐film solar cells via area‐selective electrochemical deposition for concentrator photovoltaics application. scientific reports. doi:10.1038/s41598-020-71717-0 Peer reviewed |
 | Werner, F., Veith-Wolf, B., Spindler, C., Barget, M., Babbe, F., Guillot, J., Schmidt, J., & Siebentritt, S. (2020). Oxidation as Key Mechanism for Efficient Interface Passivation in Cu(In,Ga)Se2 Thin-Film Solar Cells. Physical Review Applied. doi:10.1103/PhysRevApplied.13.054004 Peer Reviewed verified by ORBi |
 | Werner, F., Veith-Wolf, B., Melchiorre, M., Babbe, F., Schmidt, J., & Siebentritt, S. (2020). Ultra-thin passivation layers in cu(in,Ga)Se2 thin-film solar cells: full-area passivated front contacts and their impact on bulk doping. Scientific Reports. doi:10.1038/s41598-020-64448-9 Peer Reviewed verified by ORBi |
 | Spindler, C., Babbe, F., Wolter, M., Ehre, F., Santhosh, K., Hilgert, P., Werner, F., & Siebentritt, S. (23 September 2019). Electronic defects in Cu(In,Ga)Se2: Towards a comprehensive model. Physical Review Materials, 3, 1-20. doi:10.1103/PhysRevMaterials.3.090302 Peer Reviewed verified by ORBi |
 | Elanzeery, H., Melchiorre, M., Sood, M., Babbe, F., Werner, F., Brammertz, G., & Siebentritt, S. (16 May 2019). Challenge in Cu-rich CuInSe2 thin film solar cells: Defect caused by etching. Physical Review Materials, 3, 055403. doi:10.1103/PhysRevMaterials.3.055403 Peer Reviewed verified by ORBi |
 | Babbe, F. (2019). OPTICAL ANALYSIS OF EFFICIENCY LIMITATIONS OF CU(IN,GA)SE2 GROWN UNDER COPPER EXCESS [Doctoral thesis, Unilu - University of Luxembourg]. ORBilu-University of Luxembourg. https://orbilu.uni.lu/handle/10993/38677 |
 | Babbe, F., Elanzeery, H., Wolter, M., Santhosh, K., & Siebentritt, S. (2019). The hunt for the third acceptor in CuInSe2 and Cu(In,Ga)Se2 absorber layers. Journal of Physics: Condensed Matter, 31, 425702. doi:10.1088/1361-648X/ab2e24 Peer Reviewed verified by ORBi |
 | Werner, F., Babbe, F., Elanzeery, H., & Siebentritt, S. (2019). Can we see defects in capacitance measurements of thin‐film solar cells ? Progress in Photovoltaics, 27, 1045–1058. doi:10.1002/pip.3196 Peer Reviewed verified by ORBi |
 | Elanzeery, H., Babbe, F., Melchiorre, M., Werner, F., & Siebentritt, S. (2018). High‐performance low bandgap thin film solar cells for tandem applications. Progress in Photovoltaics, 1-6. doi:10.1002/pip.3026 Peer Reviewed verified by ORBi |
  | Robert, E., Gunder, R., De Wild, J., Spindler, C., Babbe, F., Elanzeery, H., El Adib, B., Treharne, R., Miranda, H., Wirtz, L., Schorr, S., & Dale, P. (April 2018). Synthesis, theoretical and experimental characterisation of thin film Cu2Sn1-xGexS3 ternary alloys (x = 0 to 1): Homogeneous intermixing of Sn and Ge. Acta Materialia, 151. doi:10.1016/j.actamat.2018.03.043 Peer Reviewed verified by ORBi |
 | Liu, M., Berg, D. M., Hwang, P.-Y., Lai, C.-Y., Stone, K. H., Babbe, F., Dobson, K. D., & Radu, D. R. (2018). The promise of solution-processed Fe2GeS4 thin films in iron chalcogenide photovoltaics. Journal of Materials Science. doi:10.1007/s10853-018-2082-1 Peer Reviewed verified by ORBi |
 | Correa, D., Siopa, D., Salomé, P. M. P., Tombolato, S., Abderrafi, K., Babbe, F., Colombara, D., Anacleto, P., Dale, P., & Sadewasser, S. (2018). Locally-confined electrodeposition of Cu(In,Ga)Se2micro islands for micro-concentrator solar cells. IEEE. doi:10.1109/PVSC.2018.8547833 |
 | Babbe, F., Choubrac, L., & Siebentritt, S. (2018). The Optical Diode Ideality Factor Enables Fast Screening of Semiconductors for Solar Cells. Solar RRL, 1800248, 1800248. doi:10.1002/solr.201800248 Peer Reviewed verified by ORBi |
 | Werner, F., Babbe, F., Burkhart, J., Spindler, C., Elanzeery, H., & Siebentritt, S. (2018). Interdiffusion and Doping Gradients at the Buffer/Absorber Interface in Thin-Film Solar Cells. ACS Applied Materials and Interfaces, 10, 28553-28565. doi:10.1021/acsami.8b08076 Peer Reviewed verified by ORBi |
 | Babbe, F., Elanzeery, H., Melchiorre, M., Zelenina, A., & Siebentritt, S. (2018). Potassium fluoride postdeposition treatment with etching step on both Cu-rich and Cu-poor CuInSe2 thin film solar cells. Physical Review Materials, 2 (10), 105405. doi:10.1103/PhysRevMaterials.2.105405 Peer Reviewed verified by ORBi |
 | Rey, G., Spindler, C., Rachad, W., Siebentritt, S., Babbe, F., Nuys, M., Carius, R., Li, S., & Platzer-Björkman, C. (2018). Absorption Coefficient of a Semiconductor Thin Film from Photoluminescence. Physical Review Applied, 9, 064008. doi:10.1103/PhysRevApplied.9.064008 Peer Reviewed verified by ORBi |
 | Tat Ming Ng, Weller, M. T., Kissling, G. P., Peter, L. M., Dale, P., Babbe, F., De Wild, J., Wenger, B., Snaith, H. J., & Lane, D. (2017). Optoelectronic and Spectroscopic Characterization of Vapour-Transport Grown Cu2ZnSnS4 Single Crystals. Journal of Materials Chemistry A. doi:10.1039/c6ta09817g Peer Reviewed verified by ORBi |
 | De Wild, J., Babbe, F., Robert, E., Redinger, A., & Dale, P. (2017). Silver Doped Cu2SnS3 Absorber Layers for Solar Cells Application. IEEE Journal of Photovoltaics. doi:10.1109/JPHOTOV.2017.2764496 Peer Reviewed verified by ORBi |
 | Elanzeery, H., Babbe, F., Melchiorre, M., Robert, E., Zelenina, A., & Siebentritt, S. (2017). Potassium fluoride ex-situ treatment on both Cu-rich and Cu-poor CuInSe2 thin film solar cells. IEEE Journal of Photovoltaics, 7 (2), 684-689. doi:10.1109/JPHOTOV.2017.2651802 Peer Reviewed verified by ORBi |
 | Rey, G., Babbe, F., Weiss, T., Elanzeery, H., Melchiorre, M., Valle, N., Brahime, E. A., & Siebentritt, S. (14 November 2016). Post-deposition treatment of Cu2ZnSnSe4 with alkalis. Thin Solid Films, 633, 162-165. doi:10.1016/j.tsf.2016.11.021 Peer reviewed |
 | Vetter, A., Babbe, F., Hofbeck, B., Kubis, P., Richter, M., Heise, S. J., Ohland, J., Riedel, I., & Brabec, C. J. (2016). Visualizing the performance loss of solar cells by IR thermography — an evaluation study on CIGS with artificially induced defects. Progress in Photovoltaics, 24 (7), 1001-1008. doi:10.1002/pip.2749 Peer Reviewed verified by ORBi |
 | Babbe, F., Choubrac, L., & Siebentritt, S. (2016). Quasi Fermi level splitting of Cu-rich and Cu-poor Cu(In,Ga)Se2 absorber layers. Applied Physics Letters, 109, 082805. doi:10.1063/1.4961530 Peer Reviewed verified by ORBi |
 | Babbe, F., Choubrac, L., & Siebentritt, S. (2016). Study on the quasi Fermi level splitting of Cu(In,Ga)Se2 absorber layers with Cu-rich and Cu-poor composition. IEEE Photovoltaic Specialists Conference. Conference Record, 1142-1145. Peer reviewed |