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Monica Morales Masis

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Publications associées (39)

New Route for "Cold-Passivation" of Defects in Tin-Based Oxides

Christophe Ballif, Aïcha Hessler-Wyser, Quentin Thomas Jeangros, Yonghui Lee, Monica Morales Masis, Oscar Esteban Rucavado Leandro, Federica Landucci

2018

A passivating contact for silicon solar cells formed during a single firing thermal annealing

Christophe Ballif, Franz-Josef Haug, Quentin Thomas Jeangros, Andrea Ingenito, Matthieu Despeisse, Monica Morales Masis, Gizem Nogay, Philipp Friedrich Hermann Löper, Oscar Esteban Rucavado Leandro

Passivating contacts are indispensable for achieving high conversion efficiency in crystalline-silicon solar cells. Their realization and integration into a convenient process flow have become crucial research objectives. Here, we report an alternative pas ...

2018

Crystalline Silicon Solar Cells With Coannealed Electron- and Hole-Selective SiCx Passivating Contacts

Christophe Ballif, Franz-Josef Haug, Quentin Thomas Jeangros, Andrea Ingenito, Monica Morales Masis, Gizem Nogay, Philipp Friedrich Hermann Löper, Philippe Wyss, Oscar Esteban Rucavado Leandro, Josua Andreas Stückelberger

We present electron- and hole-selective passivating contacts based on wet-chemically grown interfacial SiOx and overlying in-situ doped silicon carbide (SiCx) deposited by plasma-enhanced chemical vapor deposition. After annealing at 850 degrees C, excelle ...

2018

What Limits Mobility in Hydrogenated Indium Oxide?

Monica Morales Masis, Laura Ding, Michael Elias Stückelberger, Martial Duchamp, Fabien Paul Jacques Dauzou

Understanding the electron scattering mechanisms dominating transport in high and low mobility transparent conducting oxides can provide insight into improving the properties of this crucial photovoltaic device layer. Contributions from ionized impurity sc ...

IEEE2018

Hybrid sequential deposition process for fully textured perovskite/silicon tandem solar cells

Christophe Ballif, Quentin Thomas Jeangros, Davide Sacchetto, Bertrand Yves Paul Paviet-Salomon, Florent Sahli, Arnaud Walter, Gianluca Cattaneo, Matthieu Despeisse, Mathieu Gérard Boccard, Sylvain Nicolay

Tandem solar cells that feature a high-bandgap perovskite cell on top of a lower bandgap silicon cell have the potential to reach efficiencies > 30%. Here, we present a versatile hybrid deposition method that yields conformal perovskite cells directly on t ...

IEEE2018

Interplay of annealing temperature and doping in hole selective rear contacts based on silicon-rich silicon-carbide thin films

Christophe Ballif, Gizem Nogay, Franz-Josef Haug, Matthieu Despeisse, Monica Morales Masis, Philipp Friedrich Hermann Löper, Philippe Wyss, Oscar Esteban Rucavado Leandro, Josua Andreas Stückelberger

We present a detailed optimization of a hole selective rear contact for p-type crystalline silicon solar cells which relies on full-area processes and provides full-area passivation. The passivating hole-contact is based on a layer stack comprising a chemi ...

Elsevier Science Bv2017

Direct Imaging of Dopant Distribution in Polycrystalline ZnO Films

Christophe Ballif, Aïcha Hessler-Wyser, Cécile Hébert, Sylvain Nicolay, Duncan Thomas Lindsay Alexander, Martin Ledinsky, Stéphane Laurent Escrig, Monica Morales Masis, Arthur Brian Aebersold

Two fundamental requirements of transparent conductive oxides are high conductivity and low optical absorptance, properties strongly dependent on the free-carrier concentration of the film. The free carrier concentration is usually-tuned by the addition of ...

Amer Chemical Soc2017

Enhancing the optoelectronic properties of amorphous zinc tin oxide by subgap defect passivation: A theoretical and experimental demonstration

Christophe Ballif, Aïcha Hessler-Wyser, Quentin Thomas Jeangros, Jakub Holovsky, Monica Morales Masis, Federica Landucci, Martial Duchamp, Oscar Esteban Rucavado Leandro

The link between sub-bandgap states and optoelectronic properties is investigated for amorphous zinc tin oxide (a-ZTO) thin films deposited by RF sputtering. a-ZTO samples were annealed up to 500 °C in oxidizing, neutral, and reducing atmospheres before ch ...

American Physical Society2017

Metallization of Si heterojunction solar cells by nanosecond laser ablation and Ni-Cu plating

Christophe Ballif, Aïcha Hessler-Wyser, Matthieu Despeisse, Bertrand Yves Paul Paviet-Salomon, Jan-Willem Alexander Schüttauf, Monica Morales Masis, Ali Dabirian

A key step in industrialization of photovoltaics (PV) is the development of low-cost and large-area metallization processes to substitute the standard screen-printing process of silver paste. Thus Cu and Ni metallization processes enabled by laser patterni ...

Elsevier2017

Optical Evaluation of the Rear Contacts of Crystalline Silicon Solar Cells by Coupled Electromagnetic and Statistical Ray-Optics Modeling

Christophe Ballif, Franz-Josef Haug, Ali Dabirian, Stefaan De Wolf, Monica Morales Masis

High-efficiency crystalline silicon (c-Si) solar cells increasingly feature sophisticated electron and hole contacts aimed at minimizing electronic losses. At the rear of photovoltaic devices, such contacts-usually consisting of stacks of functional layers ...

Ieee-Inst Electrical Electronics Engineers Inc2017

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Interplay of annealing temperature and doping in hole selective rear contacts based on silicon-rich silicon-carbide thin films

Elsevier Science Bv2017

Enhancing the optoelectronic properties of amorphous zinc tin oxide by subgap defect passivation: A theoretical and experimental demonstration

Christophe Ballif, Aïcha Hessler-Wyser, Quentin Thomas Jeangros, Jakub Holovsky, Monica Morales Masis, Federica Landucci, Martial Duchamp, Oscar Esteban Rucavado Leandro

American Physical Society2017

Direct Imaging of Dopant Distribution in Polycrystalline ZnO Films

Christophe Ballif, Aïcha Hessler-Wyser, Cécile Hébert, Sylvain Nicolay, Duncan Thomas Lindsay Alexander, Martin Ledinsky, Stéphane Laurent Escrig, Monica Morales Masis, Arthur Brian Aebersold

Amer Chemical Soc2017

Metallization of Si heterojunction solar cells by nanosecond laser ablation and Ni-Cu plating

Christophe Ballif, Aïcha Hessler-Wyser, Matthieu Despeisse, Bertrand Yves Paul Paviet-Salomon, Jan-Willem Alexander Schüttauf, Monica Morales Masis, Ali Dabirian

Elsevier2017

Optical Evaluation of the Rear Contacts of Crystalline Silicon Solar Cells by Coupled Electromagnetic and Statistical Ray-Optics Modeling

Christophe Ballif, Franz-Josef Haug, Ali Dabirian, Stefaan De Wolf, Monica Morales Masis

Ieee-Inst Electrical Electronics Engineers Inc2017