Browsing by Author "Descoeudres, A."
Now showing items 1-13 of 13
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Advanced Silicon Thin Films for High-Efficiency Silicon Heterojunction-Based Solar Cells
Descoeudres, A.; Allebe, C.; Badel, N.; Barraud, L.; Champliaud, J.; Christmann, G.; et al. (2017)The drop in passivation usually observed after the deposition of the p-doped amorphous silicon (a-Si:11) layer on top of the passivating intrinsic buffer a-Si:H layer during the fabrication of silicon heterojunction (SHJ) ... -
Aluminium-Doped Zinc Oxide Rear Reflectors for High-Efficiency Silicon Heterojunction Solar Cells
Senaud, L.-L.; Christmann, G.; Descoeudres, A.; Geissbuhler, J.; Barraud, L.; Badel, N.; Allebe, C.; Nicolay, S.; Despeisse, M.; Paviet-Salomon, B.; Ballif, C. (2019)This contribution demonstrates an improved infrared response of the rear reflector of monofacial silicon heterojunction solar cells using aluminium-doped zinc oxide (AZO) in lieu of indium tin oxide (ITO) in the back ... -
Asymmetric band offsets in silicon heterojunction solar cells: Impact on device performance
Seif, J. P.; Menda, D.; Descoeudres, A.; Barraud, L.; Ozdemir, O.; Ballif, C.; et al. (2016)Amorphous/crystalline silicon interfaces feature considerably larger valence than conduction band offsets. In this article, we analyze the impact of such band offset asymmetry on the performance of silicon heterojunction ... -
Demonstrating the high V-oc potential of PEDOT:PSS/c-Si heterojunctions on solar cells
Gogolin, R.; Zielke, D.; Descoeudres, A.; Despeisse, M.; Ballif, C.; Schmidt, J. (2017)In this study, we demonstrate the high surface passivation quality of PEDOT:PSS/c-Si junctions for the first time on solar cell level, reaching a record high V-oc value of 688 mV after full-area metallization of the ... -
Engineering of Thin-Film Silicon Materials for High Efficiency Crystalline Silicon Solar Cells
Despeisse, M.; Barraud, L.; Paviet-Salomon, B.; Descoeudres, A.; Senaud, L. L.; Allebe, C.; et al. (2018)Thin-film silicon layers deposited in parallel-plate PECVD reactors can be produced with varying microstructure, composition and properties, depending on deposition process conditions and on the underlying substrate ... -
Increasing the efficiency of silicon heterojunction solar cells and modules by light soaking
Kobayashi, E.; De Wolf, S.; Levrat, J.; Descoeudres, A.; Despeisse, M.; Haug, F. J.; et al. (2017)Silicon heterojunction solar cells use crystalline silicon (c-Si) wafers as optical absorbers and employ bilayers of doped/intrinsic hydrogenated amorphous silicon (a-Si:H) to form passivating contacts. Recently, we ... -
Light-induced performance increase of silicon heterojunction solar cells
Kobayashi, E.; De Wolf, S.; Levrat, J.; Christmann, G.; Descoeudres, A.; Nicolay, S.; et al. (2016)Silicon heterojunction solar cells consist of crystalline silicon (c-Si) wafers coated with doped/intrinsic hydrogenated amorphous silicon (a-Si:H) bilayers for passivating-contact formation. Here, we unambiguously demonstrate ... -
Low-temperature processes for passivation and metallization of high-efficiency crystalline silicon solar cells
Descoeudres, A.; Allebe, C.; Badel, N.; Barraud, L.; Champliaud, J.; Christmann, G.; et al. (2018)This paper reviews recent progress made at CSEM on the development of low-temperature processes for the fabrication of amorphous silicon-based passivated contacts and for the metallization of high-efficiency silicon ... -
Mechanically stacked 4-terminal III-V/Si tandem solar cells
Essig, S.; Allebe, C.; Geisz, J. F.; Steiner, M. A.; Barraud, L.; Descoeudres, A.; et al. (2017)We developed 4-terminal III-V/Si dual-junction solar cells that reach certified record 1-sun efficiencies over 32%. These efficiency values exceed the theoretical efficiency limit of single-junction solar cells and prove ... -
Multiple dehydrogenation reactions of negative ions in low pressure silane plasma chemistry
Howling, A. A.; Descoeudres, A.; Hollenstein, C. (2020) -
Rear-emitter silicon heterojunction solar cells with atomic layer deposited ZnO:Al serving as an alternative transparent conducting oxide to In2O3:Sn
Niemela, J. P.; Macco, B.; Barraud, L.; Descoeudres, A.; Badel, N.; Despeisse, M.; et al. (2019)Here high-efficiency (above 21%) large-area silicon heterojunction solar cells with atomic layer deposited ZnO:Al as front- or back-side transparent conducting oxide are demonstrated. Photoconductance decay measurements ... -
Silicon Heterojunction Solar Cells on Quasi-mono Wafers
Haschke, J.; Kivambe, M. M.; Horzel, J.; Monnard, R.; Barraud, L.; Descoeudres, A.; et al. (2018)We applied hydrogen passivation, gettering and a combination of both to quasi-mono (qm) wafer material to enhance its bulk lifetime and prepared silicon heterojunction (SHJ) solar cells. We find that while our applied ... -
The versatility of passivating carrier-selective silicon thin films for diverse high-efficiency screen-printed heterojunction-based solar cells
Descoeudres, A.; Horzel, J.; Paviet-Salomon, B.; Senaud, L. L.; Christmann, G.; Geissbuhler, J.; et al. (2020-02)