Publication

Modelling of light scattering from micro- and nanotextured surfaces

Christophe Ballif
2010
Journal Articles

Abstract

We present a calculation routine for the angular and spectral dependence of scattered light after transmission through textured interfaces. Based on a modified Rayleigh–Sommerfeld integral, the treatment requires only measured surface profiles, and the refractive indices of the two materials adjacent to the textured interface but no fitting parameter. For typical surface morphologies used in solar cell fabrication, the calculations correctly reproduce the angle resolved scattering at 543 nm and the total scattered light intensity in the spectral range from 400 to 2000 nm. The model is then applied to predict the behavior of the interface between ZnO and silicon in a thin film solar cell which is not experimentally accessible. © 2010 American Institute of Physics.

Official source

https://infoscience.epfl.ch/entities/publication/449c2a0d-7d3b-4a91-92a5-8dd4eb79cfef

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Christophe Ballif
2010
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/449c2a0d-7d3b-4a91-92a5-8dd4eb79cfef

About this result

Related concepts (32)

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).

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.

Raman scattering

Raman scattering or the Raman effect (ˈrɑːmən) is the inelastic scattering of photons by matter, meaning that there is both an exchange of energy and a change in the light's direction. Typically this effect involves vibrational energy being gained by a molecule as incident photons from a visible laser are shifted to lower energy. This is called normal Stokes Raman scattering. The effect is exploited by chemists and physicists to gain information about materials for a variety of purposes by performing various forms of Raman spectroscopy.

Related publications (32)

Modelling of light scattering from micro- and nanotextured surfaces

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