Publications associées à Optimization of amorphous silicon thin film solar cells for flexible photovoltaics

Diffraction and absorption enhancement from textured back reflectors of thin film solar cells

Christophe Ballif, Franz-Josef Haug, Ali Naqavi

We study light scattering and absorption in thin film solar cells, using a model system of a sinusoidally textured silver reflector and dielectric layers of ZnO and amorphous silicon. Experimental results are compared to a theoretical model based on a Rayl ...

American Institute of Physics2012

UV imprinting for thin film solar cell application

Christophe Ballif, Franz-Josef Haug, Corsin Battaglia, Jordi Escarre Palou, Céline Pahud, Rémi Biron

UV imprinting is an interesting, low cost technique to produce large area thin film solar cells incorporating nanometric textures. Here, we review and present new results confirming that replicas of the most common textures used in photovoltaics can be obt ...

2012

Time evolution of surface defect states in hydrogenated amorphous silicon studied by photothermal and photocurrent spectroscopy and optical simulation

Christophe Ballif, Matthieu Despeisse, Michael Elias Stückelberger, Jakub Holovsky

The time evolution of surface defect density and width of space charge region in thin layer of amorphous silicon is observed experimentally by Fourier transform photocurrent spectroscopy. This work reviews the assumption that photocurrent is insensitive to ...

Elsevier Science Bv2012

Electro-switchable polydimethylsiloxane-based optofluidics

Andreas Vasdekis, Luciano De Sio, Marilisa Romito

We report on the fabrication and characterization of a new generation of electro-switchable optofluidic devices based on flexible substrates, combined with the extraordinary properties of reconfigurable soft-materials. A conductive polydimethylsiloxane mic ...

Royal Soc Chemistry2012

Photocurrent enhancement in thin film amorphous silicon solar cells with silver nanoparticles

Franz-Josef Haug, Xavier Niquille

Silver nanoparticles embedded in a dielectric material have strong scattering properties under light illumination, due to localized surface plasmons. This effect is a potential way to achieve light trapping in thin-film solar cells. In this paper we study ...

Wiley-Blackwell2011

Optimization of thin film silicon solar cells on highly textured substrates

Christophe Ballif, Corsin Battaglia, Matthieu Despeisse, Mathieu Gérard Boccard, Grégory Bugnon, Thomas Söderström, Gaetano Parascandolo, Peter Cuony, Simon Hänni, Mathieu Charrière, Nils Linus Löfgren

Doped layers made of nanostructured silicon phases embedded in a silicon oxide matrix were implemented in thin film silicon solar cells. Their combination with optimized deposition processes for the silicon intrinsic layers is shown to allow for an increas ...

2011

Enhancement of microcrystalline n-i-p solar cell performance via use of pre-covering layers and H-2 treatment

Christophe Ballif, Franz-Josef Haug, Xavier Niquille, Vanessa Terrazzoni-Daudrix

We study the effects of a-Si:H and mu c-Si:H covering layers and an H-2 treatment on the characteristics of mu c-Si:H thin film solar cells deposited in open single chamber very high frequency plasma enhanced chemical vapor deposition systems. Secondary io ...

Elsevier2011

High fidelity transfer of nanometric random textures by UV embossing for thin film solar cells applications

Christophe Ballif, Franz-Josef Haug, Corsin Battaglia, Jordi Escarre Palou, Karin Söderström

We investigate the transfer of random nanostructures commonly used in thin film silicon solar cells onto inexpensive substrates, such as glass or flexible polyethylene sheets. Morphological and optical analyses of masters and replicas show the successful t ...

Elsevier2011

Highly reflective nanotextured sputtered silver back reflector for flexible high-efficiency n–i–p thin-film silicon solar cells

Christophe Ballif, Franz-Josef Haug, Jordi Escarre Palou, Karin Söderström, Céline Pahud, Rémi Biron

High reflectivity is essential when a metal is used as back contact and reflector in thin-film silicon solar cells. We show that thermal annealing at 150 °C improves the reflectivity of silver films deposited by sputtering at room temperature on nanotextur ...

Elsevier2011

Chattez avec Graph Search

Posez n’importe quelle question sur les cours, conférences, exercices, recherches, actualités, etc. de l’EPFL ou essayez les exemples de questions ci-dessous.

AVERTISSEMENT : Le chatbot Graph n'est pas programmé pour fournir des réponses explicites ou catégoriques à vos questions. Il transforme plutôt vos questions en demandes API qui sont distribuées aux différents services informatiques officiellement administrés par l'EPFL. Son but est uniquement de collecter et de recommander des références pertinentes à des contenus que vous pouvez explorer pour vous aider à répondre à vos questions.

Optimization of amorphous silicon thin film solar cells for flexible photovoltaics

Diffraction and absorption enhancement from textured back reflectors of thin film solar cells

UV imprinting for thin film solar cell application

Time evolution of surface defect states in hydrogenated amorphous silicon studied by photothermal and photocurrent spectroscopy and optical simulation

Microfabricated All-Around-Electrode AC Electro-osmotic Micropump

Electro-switchable polydimethylsiloxane-based optofluidics

Photocurrent enhancement in thin film amorphous silicon solar cells with silver nanoparticles

Optimization of thin film silicon solar cells on highly textured substrates

Enhancement of microcrystalline n-i-p solar cell performance via use of pre-covering layers and H-2 treatment

High fidelity transfer of nanometric random textures by UV embossing for thin film solar cells applications

Highly reflective nanotextured sputtered silver back reflector for flexible high-efficiency n–i–p thin-film silicon solar cells

Graph Chatbot

Chattez avec Graph Search

Diffraction and absorption enhancement from textured back reflectors of thin film solar cells

Photocurrent enhancement in thin film amorphous silicon solar cells with silver nanoparticles

Microfabricated All-Around-Electrode AC Electro-osmotic Micropump

High fidelity transfer of nanometric random textures by UV embossing for thin film solar cells applications

Optimization of thin film silicon solar cells on highly textured substrates

Time evolution of surface defect states in hydrogenated amorphous silicon studied by photothermal and photocurrent spectroscopy and optical simulation

Electro-switchable polydimethylsiloxane-based optofluidics

Enhancement of microcrystalline n-i-p solar cell performance via use of pre-covering layers and H-2 treatment

Highly reflective nanotextured sputtered silver back reflector for flexible high-efficiency n–i–p thin-film silicon solar cells

UV imprinting for thin film solar cell application