Mediaspace scheduled maintenance: Aug 25, 2026 07:00 - 12:00 AM. During this time, videos will be temporarily unavailable. Check status updates.

Concept

Protocrystalline

Publications associées (28)

Micromorph silicon solar cell optical performance: Influence of intermediate reflector and front electrode surface texture

Franz-Josef Haug, Mathieu Gérard Boccard

The optical performance of tandem a-Si:H/mu c-Si:H (micromorph) thin film solar cell was investigated experimentally and by means of rigorous 3-D optical simulation. The interplay of intermediate reflectors, with different refractive indices and thicknesse ...

Elsevier Science Bv2014

Compositional study of defects in microcrystalline silicon solar cells using spectral decomposition in the scanning transmission electron microscope

Christophe Ballif, Franz-Josef Haug

The chemical compositions of defective regions in microcrystalline thin film Si solar cells are studied using energy-dispersive X-ray spectroscopy and electron energy-loss spectroscopy (EELS) in the scanning transmission electron microscope. Nanometer-reso ...

American Institute of Physics2013

Technological status of plasma-deposited thin-film silicon photovoltaics

Christophe Ballif, Arvind Shah, Etienne Antoine Julien Moulin

Basic properties of plasma-deposited amorphous and microcrystalline layers are summarized. Limitations for solar cell performance, which are a result of these basic properties are pointed out. Efficiencies and other solar cell parameters obtained for the b ...

Elsevier2013

Smoothening intermediate reflecting layer for tandem thin-film silicon solar cells

Christophe Ballif, Matthieu Despeisse, Corsin Battaglia, Mathieu Gérard Boccard

We introduce the concept of smoothening intermediate reflecting layers (IRLs) in Micromorph thin-film silicon tandem solar cells in the superstrate configuration. The aim of such structures is not only to provide a selective reflection of light for optimal ...

Elsevier2013

Optimized short-circuit current mismatch in multi-junction solar cells

Christophe Ballif, Matthieu Despeisse, Mathieu Gérard Boccard, Grégory Bugnon, Fanny Sculati-Meillaud

Multi-junction photovoltaic devices include two or more component sub-cells which are electrically interconnected in series. At any power point, the current output of the total device is limited by the sub-cell with the smallest current density. Therefore, ...

Elsevier2013

High-Quality Microcrystalline Silicon for Efficient Thin-Film Solar Cells : Insights into Plasma and Material Properties

Grégory Bugnon

This thesis investigates the link between the plasma deposition conditions and microcrystalline silicon (μc-Si:H) material quality for thin-film silicon photovoltaic applications. The role of interfaces and the μc-Si:H material quality on the device perfor ...

EPFL2013

Combined model of non-conformal layer growth for accurate optical simulation of thin-film silicon solar cells

Franz-Josef Haug

In thin-film silicon solar cells textured interfaces are introduced, leading to improved antireflection and light trapping capabilities of the devices. Thin-layers are deposited on surface-textured substrates or superstrates and the texture is translated t ...

Elsevier Science Bv2013

Computational Modeling of Thin-Film Silicon Solar Cells and Modules

Thomas Andreas Lanz

Solar photovoltaic energy production relies on the direct conversion of sunlight into electricity. Silicon thin-film solar cells represent a reliable and environmentally friendly technology to make photovoltaics economically viable. As these solar cells do ...

EPFL2013