Publication

DSA-type anode based on conductive porous p-silicon substrate

Christos Comninellis
2003
Journal Articles

Abstract

Porous silicon (PS) thin films have been prepd. by electrochem. anodization of p-Si in HF-H2O-EtOH soln. and they have been used as substrate material for the prepn. of iridium oxide based electrodes (PS/IrO2) using the thermal decompn. technique. The morphol. and the electrochem. behavior of the PS/IrO2 have been studied and the results have been compared with IrO2 electrodes deposited on a sandblasted p-silicon (p-Si/IrO2). SEM analyses have revealed that the PS/IrO2 electrodes are porous, rough and IrO2 appears to be deposited within some silicon pores, while the p-Si/IrO2 present a mud-cracked' surface. Cyclic voltammetries in 1 M HClO4 have shown that the PS/IrO2 presents higher surface area than p-Si/IrO2. [on SciFinder (R)]

Official source

https://infoscience.epfl.ch/entities/publication/521fbefb-ee2d-42c2-8828-f39540c80a9a

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Christos Comninellis
2003
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/521fbefb-ee2d-42c2-8828-f39540c80a9a

About this result

Related concepts (31)

Crystalline silicon

Crystalline silicon or (c-Si) Is the crystalline forms of silicon, either polycrystalline silicon (poly-Si, consisting of small crystals), or monocrystalline silicon (mono-Si, a continuous crystal). Crystalline silicon is the dominant semiconducting material used in photovoltaic technology for the production of solar cells. These cells are assembled into solar panels as part of a photovoltaic system to generate solar power from sunlight. In electronics, crystalline silicon is typically the monocrystalline form of silicon, and is used for producing microchips.

Thin film

A thin film is a layer of material ranging from fractions of a nanometer (monolayer) to several micrometers in thickness. The controlled synthesis of materials as thin films (a process referred to as deposition) is a fundamental step in many applications. A familiar example is the household mirror, which typically has a thin metal coating on the back of a sheet of glass to form a reflective interface. The process of silvering was once commonly used to produce mirrors, while more recently the metal layer is deposited using techniques such as sputtering.

Thin-film solar cell

Thin-film solar cells are made by depositing one or more thin layers (thin films or TFs) of photovoltaic material onto a substrate, such as glass, plastic or metal. Thin-film solar cells are typically a few nanometers (nm) to a few microns (μm) thick–much thinner than the wafers used in conventional crystalline silicon (c-Si) based solar cells, which can be up to 200 μm thick. Thin-film solar cells are commercially used in several technologies, including cadmium telluride (CdTe), copper indium gallium diselenide (CIGS), and amorphous thin-film silicon (a-Si, TF-Si).

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