Browsing by Author "Despeisse, M."

22% Efficient Dopant-free Interdigitated Back Contact Silicon Solar Cells

Wu, W. L.; Lin, W. J.; Zhong, S. H.; Paviet-Salomon, B.; Despeisse, M.; Liang, Z. C.; et al. (2018)

In this study, we present dopant-free back contact heterojunction silicon solar cells employing MoOx and MgFx based stacks as hole-and electron-selective contacts deposited using a thermal evaporation process at low ...

25.1%-Efficient Monolithic Perovskite/Silicon Tandem Solar Cell Based on a p-type Monocrystalline Textured Silicon Wafer and High-Temperature Passivating Contacts

Nogay, G.; Sahli, F.; Werner, J.; Monnard, R.; Boccard, M.; Despeisse, M.; et al. (2019)

A monolithic two-terminal perovskite/silicon tandem solar cell based on an industrial, high-temperature tolerant p-type crystalline silicon bottom cell with a steady-state power conversion efficiency of 25.1% is demonstrated.

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 ...

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 ...

Dopant-Free Back-Contacted Silicon Solar Cells with an Efficiency of 22.1%

Wu, W.; Lin, W.; Zhong, S. H.; Paviet-Salomon, B.; Despeisse, M.; Jeangros, Q.; et al. (2020-04)

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 ...

Industrialization of hybrid Si/III–V and translucent planar micro-tracking modules

Nardin, G.; Domínguez, C.; Aguilar, Á. F.; Anglade, L.; Duchemin, M.; Schuppisser, D.; Gerlich, F.; Ackermann, M.; Coulot, L.; Cuénod, B.; Petri, D.; Niquille, X.; Badel, N.; Lachowicz, A.; Despeisse, M.; Levrat, J.; Ballif, C.; Askins, S.; Núñez, R.; Jost, N.; Vallerotto, G. (2020-12-21)

New guidelines for a more accurate extraction of solar cells and modules key data from their current-voltage curves

Paviet-Salomon, B.; Levrat, J.; Fakhfouri, V.; Pelet, Y.; Rebeaud, N.; Despeisse, M.; et al. (2017)

This paper investigates the optimisation of the fit procedures to determine with the highest accuracy the key data of photovoltaic cells and modules from their current-voltage characteristics. Our analysis is based on ...

Patterning Techniques for Copper Electoplated Metallization of Silicon Heterojunction Cells

Lachowicz, A.; Andreatta, G.; Blondiaux, N.; Faes, A.; Diaz Leon, J.; Christmann, G.; Allebé, C.; Fontaine, C.; Haumesser, P.-H.; Jourdan, J.; Muñoz, D.; Godard, M.; Darnon, M.; Nicolay, S.; Despeisse, M.; Ballif, C. (2021-06)

Phosphorous-Doped Silicon Carbide as Front-Side Full-Area Passivating Contact for Double-Side Contacted c-Si Solar Cells

Ingenito, A.; Nogay, G.; Stuckelberger, J.; Wyss, P.; Gnocchi, L.; Allebé, C.; Horzel, J.; Despeisse, M.; Haug, F.-J.; Löper, P.; Ballif, C. (2019)

We present an electron selective passivating contact based on a tunneling SiO. capped with a phosphorous doped silicon carbide and prepared with a high-temperature thermal anneal. We investigate in detail the effects of ...

Project ameliz: Patterning techniques for copper electroplated metallization onheterojunction solar cells

Lachowicz, A.; Andreatta, G.; Blondiaux, N.; Faes, A.; Badel, N.; Diaz Leon, J. J.; Allebé, C.; Fontaine, C.; Haumesser, P.-H.; Jourdan, J.; Muñoz, D.; Godard, M.; Darmon, M.; Nicolay, S.; Despeisse, M.; Ballif, C. (2021-01)

Quantifying and Modeling the Impact of Interconnection Failures on the Electrical Performance of Crystalline Silicon Photovoltaic Modules

Annigoni, E.; Virtuani, A.; Levrat, J.; Faes, A.; Despeisse, M.; Ballif, C.; et al. (2018)

We present an electrical model developed with LT SPICE that simulates the performance of a string of cells with disconnections in the electrical circuit. In a previous contribution, we quantified experimentally how the ...

Quantifying and modeling the impact of interconnection failures on the electrical performance of crystalline silicon photovoltaic modules

Annigoni, E.; Virtuani, A.; Levrat, J.; Faes, A.; Sculati-Meillaud, F.; Despeisse, M.; et al. (2019)

Failures in the metallic interconnections are among the main degradation modes for photovoltaic modules. Fatigue accumulation due to thermomechanical stresses can result in deterioration of the solder joints or in broken ...

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 ...