Publications associées à Defect passivation in zinc tin oxide: improving the transparency-conductivity trade-off and comparing with indium-based materials

Zr-doped indium oxide electrodes: Annealing and thickness effects on microstructure and carrier transport

Christophe Ballif, Aïcha Hessler-Wyser, Quentin Thomas Jeangros, Mathieu Gérard Boccard, Monica Morales Masis, Oscar Esteban Rucavado Leandro, Federica Landucci

Zr-doped indium oxide (In2O3:Zr) has been shown to satisfy the requirements of low resistance, wide band gap, and high infrared transmittance for application as a front contact in broadband solar cells. However, the reduction of indium usage in front of tr ...

AMER PHYSICAL SOC2019

Passivation, conductivity, and selectivity in solar cell contacts: Concepts and simulations based on a unified partial-resistances framework

Mathieu Gérard Boccard

Passivation, conductivity, and selectivity are often acknowledged as the three requirements for optimal contacts to photovoltaic solar cells. Although there are generally accepted definitions and metrics for passivation and conductivity, a common understan ...

2019

Contact Resistivity of the p-Type Amorphous Silicon Hole Contact in Silicon Heterojunction Solar Cells

Mathieu Gérard Boccard

In silicon heterojunction solar cells made with high-lifetime wafers, resistive losses in the contacts dominate the total electrical power loss. Moreover, it is widely believed that the hole contact stack—a-Si:H(i)/a-Si:H(p)/ITO/Ag—is responsible for more ...

2019

A multi-technique approach to study the microstructural properties of tin-based transparent conductive oxides

Federica Landucci

Transparent conductive oxides (TCOs) are semiconductor-like materials that exhibit high electrical conductivity and high optical transparency combined. They are adopted in various applications ranging from gas sensors, to electrochromic windows, to photovo ...

EPFL2019

Annealing of Silicon Heterojunction Solar Cells: Interplay of Solar Cell and Indium Tin Oxide Properties

Christophe Ballif, Raphaël François Lemerle, Mathieu Gérard Boccard, Jan Haschke, Brahim Aissa

In this paper, we report the evolution of silicon heterojunction solar cell properties focusing, in particular, on the indium tin oxide (ITO) layers upon consecutive thermal annealing. We find that the charge carrier density

N_{\rm e}

of the ITO increase ...

2019

Electron specific oxide double layer contacts for highly efficient and uv stable perovskite device

Michael Graetzel, Shaik Mohammed Zakeeruddin, Mohammad Mahdi Tavakoli

The present invention relates to an optoelectronic device comprising an electron transport layer (ETL) and a light harvesting layer, wherein the light harvesting layer comprises a metal halide perovskite and is provided on the ETL being a multilayer struct ...

2019

Full-Area Passivating Contacts with High and Low Thermal Budgets: Solutions for High Efficiency c-Si Solar Cells

Gizem Nogay

Today more than 90% of the global PV market is covered by c-Si solar cells which are limited by recombination losses at the metal-semiconductor interface. This recombination path can be avoided by separating the metal from the c-Si wafer by introducing a b ...

EPFL2018

A Study on the Charge Carrier Transport of Passivating Contacts

Gizem Nogay

Recently, the charge carrier transport mechanism of passivating contacts, which feature an ultra-thin oxide layer, has been investigated by studying temperature-dependent current-voltage (I-V) characteristics. The measurement revealed that tunneling is the ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2018

The present work deals with the defect chemistry and charge transport properties in halide perovskites, and in particular in the archetypal methylammonium lead iodide. These materials are extensively researched due to their very promising application as li ...

EPFL2018

Impact of interlayer application on band bending for improved electron extraction for efficient flexible perovskite mini-modules

Romain Carron, Roland Widmer, Fan Fu

The development of highly efficient lightweight flexible perovskite solar cells (PSCs) opens the way to high-throughput roll-to-roll manufacturing processes and new applications such as building integration and mobile products. Flexible PSCs are generally ...

ELSEVIER SCIENCE BV2018

Defect passivation in zinc tin oxide: improving the transparency-conductivity trade-off and comparing with indium-based materials

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Zr-doped indium oxide electrodes: Annealing and thickness effects on microstructure and carrier transport

Passivation, conductivity, and selectivity in solar cell contacts: Concepts and simulations based on a unified partial-resistances framework

Contact Resistivity of the p-Type Amorphous Silicon Hole Contact in Silicon Heterojunction Solar Cells

A multi-technique approach to study the microstructural properties of tin-based transparent conductive oxides

Annealing of Silicon Heterojunction Solar Cells: Interplay of Solar Cell and Indium Tin Oxide Properties

Electron specific oxide double layer contacts for highly efficient and uv stable perovskite device

Full-Area Passivating Contacts with High and Low Thermal Budgets: Solutions for High Efficiency c-Si Solar Cells

A Study on the Charge Carrier Transport of Passivating Contacts

Impact of interlayer application on band bending for improved electron extraction for efficient flexible perovskite mini-modules

Zr-doped indium oxide electrodes: Annealing and thickness effects on microstructure and carrier transport

Contact Resistivity of the p-Type Amorphous Silicon Hole Contact in Silicon Heterojunction Solar Cells

Full-Area Passivating Contacts with High and Low Thermal Budgets: Solutions for High Efficiency c-Si Solar Cells

A Study on the Charge Carrier Transport of Passivating Contacts

Annealing of Silicon Heterojunction Solar Cells: Interplay of Solar Cell and Indium Tin Oxide Properties

Impact of interlayer application on band bending for improved electron extraction for efficient flexible perovskite mini-modules

Passivation, conductivity, and selectivity in solar cell contacts: Concepts and simulations based on a unified partial-resistances framework

Electron specific oxide double layer contacts for highly efficient and uv stable perovskite device

A multi-technique approach to study the microstructural properties of tin-based transparent conductive oxides