Publications related to Amorphous solar cells, the micromorph concept and the role of VHF-GD deposition technique

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

Films of brookite TiO2 nanorods/nanoparticles deposited by matrix-assisted pulsed laser evaporation as NO2 gas-sensing layers

Raffaella Buonsanti, Mikaël Martino

TiO2 nanorods in the brookite phase, with av. dimensions of 3-4 nm × 20-50 nm, were synthesized by a wet-chem. aminolysis route and used as precursors for thin films that were deposited by the matrix-assisted pulsed laser evapn. (MAPLE) technique. A nanoro ...

2011

Carrier transport and sensitivity issues in heterojunction with intrinsic thin layer solar cells on N-type crystalline silicon: A computer simulation study

Christophe Ballif, Anwitaman Datta, Père Roca i Cabarrocas

Heterojunction with intrinsic thin layer or HIT solar cells are considered favorable for large-scale manufacturing of solar modules, as they combine the high efficiency of crystalline silicon (c-Si) solar cells, with the low cost of amorphous silicon techn ...

American Institute of Physics2010

NEW PARADIGM FOR REAL-TIME MEASUREMENT AND MAPPING IN a-Si:H/uc-Si:H TANDEM DEVICES

Christophe Ballif, Sylvain Dunand

Thin-film Si solar module production requires a fast wide area tool for layer characteristic measurement and control. Non-uniformity in layer deposition is expected to induce loss in module power. Simulations of amorphous Si modules using a two-dimensional ...

Valencia, Spain2010

UV-nano-imprint lithography technique for the replication of back reflectors for n-i-p thin film silicon solar cells

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

Texturing of interfaces in thin film silicon solar cells is essential to enhance the produced photocurrent and thus the efficiencies.AUVnano-imprint-lithography (UV-NIL) replication processwas developed to prepare substrates with textures that are suitable ...

2010

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Amorphous solar cells, the micromorph concept and the role of VHF-GD deposition technique

Optimization of thin film silicon solar cells on highly textured substrates

Optical Layers for Thin-film Silicon Solar Cells

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

Films of brookite TiO2 nanorods/nanoparticles deposited by matrix-assisted pulsed laser evaporation as NO2 gas-sensing layers

Large-Scale Simulations of a-Si:H: The Origin of Midgap States Revisited

Carrier transport and sensitivity issues in heterojunction with intrinsic thin layer solar cells on N-type crystalline silicon: A computer simulation study

NEW PARADIGM FOR REAL-TIME MEASUREMENT AND MAPPING IN a-Si:H/uc-Si:H TANDEM DEVICES

UV-nano-imprint lithography technique for the replication of back reflectors for n-i-p thin film silicon solar cells

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

Optical Layers for Thin-film Silicon Solar Cells

Films of brookite TiO2 nanorods/nanoparticles deposited by matrix-assisted pulsed laser evaporation as NO2 gas-sensing layers

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

Optimization of thin film silicon solar cells on highly textured substrates

Large-Scale Simulations of a-Si:H: The Origin of Midgap States Revisited

UV-nano-imprint lithography technique for the replication of back reflectors for n-i-p thin film silicon solar cells

Carrier transport and sensitivity issues in heterojunction with intrinsic thin layer solar cells on N-type crystalline silicon: A computer simulation study

NEW PARADIGM FOR REAL-TIME MEASUREMENT AND MAPPING IN a-Si:H/uc-Si:H TANDEM DEVICES