Electroless deposition

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Publications associées (30)

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Electrochemical Characterization of TiO2 Blocking Layers for Dye-Sensitized Solar Cells

Michael Graetzel, Ladislav Kavan, Thomas Moehl, Nicolas Tétreault

Thin compact layers of TiO2 are grown by thermal oxidation of Ti, by spray pyrolysis, by electrochemical deposition, and by atomic layer deposition. These layers are used in dye-sensitized solar cells to prevent recombination of electrons from the substrat ...

American Chemical Society2014

Amorphous molybdenum sulfides as hydrogen evolution catalysts

Xile Hu, Carlos Gilberto Morales Guio

Providing energy for a population projected to reach 9 billion people within the middle of this century is one of the most pressing societal issues. Burning fossil fuels at a rate and scale that satisfy our near-term demand will irreversibly damage the liv ...

American Chemical Society2014

Growth and Activation of an Amorphous Molybdenum Sulfide Hydrogen Evolving Catalyst

Xile Hu, Heron Vrubel

Amorphous molybdenum sulfide films, prepared by electrodeposition, are a class of highly active catalysts for hydrogen evolution. The growth mechanism of the films and the true active species were unclear. Herein, we report a study of the growth and activa ...

American Chemical Society2013

Flexible, low-temperature, solution processed ZnO-based perovskite solid state solar cells

Michael Graetzel

A ZnO compact layer formed by electrodeposition and ZnO nanorods grown by chemical bath deposition (CBD) allow the processing of low-temperature, solution based and flexible solid state perovskite CH3NH3PbI3 solar cells. Conversion efficiencies of 8.90% we ...

Royal Society of Chemistry2013

Interaction between liquid aluminium and solid iron Al-rich intermetallics formation

Guillaume Pasche

Intermetallic phases formation is one of the phenomena, which when coupled to thermal and mechanical strains leads to the premature wear of aluminium die casting tools made out of steel. This work focuses on two aspects of this wear problem. The first and ...

EPFL2013

Batch fabrication of gold-gold nanogaps by E-beam lithography and electrochemical deposition

Nico de Rooij, Terunobu Akiyama, Sebastian Gautsch, Yexian Wu

We report on the successful development of a well-controlled two-step batch nano-fabrication process to achieve nanometer-size gaps at the wafer scale. The technique is based on an optimized electron-beam lithography process, which enables the fabrication ...

Institute of Physics2013

Ethanol-enriched low-pressure chemical vapor deposition ZnO bilayers: Properties and growth-A potential electrode for thin film solar cells

Christophe Ballif, Grégory Bugnon, Sylvain Nicolay, Laura Ding

Ethanol is used as a precursor during the growth of zinc oxide (ZnO) by low-pressure chemical vapor deposition (LPCVD). By adding ethanol, the surface of the deposited ZnO layer is flattened and its roughness is decreased about sevenfold. The layers become ...

American Institute of Physics2013

A CMOS Compatible Chip-to-Chip 3D Integration Platform

Yusuf Leblebici, Carlotta Guiducci, Michail Zervas, Yüksel Temiz

In this paper, a CMOS-compatible chip-to-chip 3D integration platform will be presented. The developed technology allows reconstituting a wafer from diced and thinned chips. Then, chip-to-chip bonding and TSV fabrication steps are accomplished in wafer-lev ...

IEEE2012

Material Study of Micromachined Thin Film Solid Oxide Fuel Cells

Yan Yan

Miniaturized, low temperature Solid Oxide Fuel Cells (SOFCs) that operate below 600 °C are promising for supplying electrical power to portable devices. Thin electrolyte membranes of less than one micrometer thickness have been shown to yield reasonable po ...

EPFL2012

Cathodic shift in onset potential of solar oxygen evolution on hematite by 13-group oxide overlayers

Michael Graetzel, Kevin Sivula, Florian Le Formal, Nicolas Tétreault, Maurin Cornuz, Jérémie Minh-Châu Brillet, Takashi Hisatomi

The onset potential of photoelectrochemical water oxidation on ultrathin hematite was improved by up to 200 mV by the chemical bath deposition of 13-group oxides as overlayers. It is proposed that the corundum-type overlayers released lattice strain of the ...

2011