Publication

The silane depletion fraction as an indicator for the amorphous/crystalline silicon interface passivation quality

Christophe Ballif, Antoine Descoeudres, Richard Bartlome
2010
Journal Articles

Abstract

In silicon heterojunction solar cells, thin amorphous silicon layers passivate the crystalline silicon wafer surfaces. By using in situ diagnostics during plasma-enhanced chemical vapor deposition (PECVD), the authors report how the passivation quality of such layers directly relate to the plasma conditions. Good interface passivation is obtained from highly depleted silane plasmas. Based upon this finding, layers deposited in a large-area very high frequency (40.68 MHz) PECVD reactor were optimized for heterojunction solar cells, yielding aperture efficiencies up to 20.3% on 4 cm2

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https://infoscience.epfl.ch/entities/publication/b6c00424-7d9c-4325-8de1-90955d5e5965

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Christophe Ballif, Antoine Descoeudres, Richard Bartlome
2010
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/b6c00424-7d9c-4325-8de1-90955d5e5965

About this result

Related concepts (32)

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.

Solar cell

A solar cell, or photovoltaic cell, is an electronic device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical phenomenon. It is a form of photoelectric cell, defined as a device whose electrical characteristics, such as current, voltage, or resistance, vary when exposed to light. Individual solar cell devices are often the electrical building blocks of photovoltaic modules, known colloquially as solar panels.

Multi-junction solar cell

Multi-junction (MJ) solar cells are solar cells with multiple p–n junctions made of different semiconductor materials. Each material's p-n junction will produce electric current in response to different wavelengths of light. The use of multiple semiconducting materials allows the absorbance of a broader range of wavelengths, improving the cell's sunlight to electrical energy conversion efficiency. Traditional single-junction cells have a maximum theoretical efficiency of 33.16%.

Related publications (32)

The silane depletion fraction as an indicator for the amorphous/crystalline silicon interface passivation quality

Chat with Graph Search

Integrated memristor for mitigating reverse-bias in perovskite solar cells

Tracking charge, spin and light polarization in space & time for photovoltaics and beyond

Modulating non-radiative recombination related to shallow traps in halide perovskites

The silane depletion fraction as an indicator for the amorphous/crystalline silicon interface passivation quality

Chat with Graph Search

Integrated memristor for mitigating reverse-bias in perovskite solar cells

Tracking charge, spin and light polarization in space &amp; time for photovoltaics and beyond

Modulating non-radiative recombination related to shallow traps in halide perovskites

Tracking charge, spin and light polarization in space & time for photovoltaics and beyond