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Ray Tracing Simulations of Reflections on Textured Solar Cells

lundi 2 février 2015, par Vincent MAGNIN

My research activities since the beginning of 2012 concern the modelling of the reflections on pyramidal textures for silicon solar cells. I have developed a 3D ray tracing program which can compute the reflectivity on a textured surface.

What it can do

- any azimuth angle,
- any altitude angle,
- any wavelength in the [0.28 ; 1.0] µm range,
- any light polarisation (including unpolarised light).
- Multilayer Anti-Reflection Coating.

Limitations of the current version (RAY3Dv3)

- details of the texture must be quite greater than the light wavelength (geometric optics approximation),
- the surface must be representable by a z=f(x,y) continuous function,
- transmitted rays are considered totally absorbed by silicon (which is false above the 1.0-µm wavelength),
- only two layers + ARC can be modelled (air+ARC+semiconductor).

Papers

- Magnin V., Harari J. , Halbwax M., Bastide S., Cherfi J., Vilcot J.P., « Angle-dependent Ray Tracing Simulations of Reflections on Pyramidal Textures for Silicon Solar Cells », Solar Energy, vol. 110, décembre 2014, p. 378-385, DOI : 10.1016/j.solener.2014.09.025, http://www.sciencedirect.com/science/article/pii/S0038092X14004654