Publication

An RCWA Analysis of Solar Cell Back Reflectors: Comparison between Modelling and Experiment

Christophe Ballif, Hans Peter Herzig, Toralf Scharf, Franz-Josef Haug, Vincent Paeder, Ali Naqavi, Karin Söderström
2010
Conference Papers

Abstract

We present a comparison between spectrally-resolved reflection measurements of gratings and theoretical predictions from RCWA approach. Diffraction intensities vary significantly with polarization, and surface plasmon absorption is observed around the onset of the diffraction orders.

Official source

https://infoscience.epfl.ch/entities/publication/1ca353c2-72eb-445e-ad0a-ffd751d74399

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Christophe Ballif, Hans Peter Herzig, Toralf Scharf, Franz-Josef Haug, Vincent Paeder, Ali Naqavi, Karin Söderström
2010
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/1ca353c2-72eb-445e-ad0a-ffd751d74399

About this result

Related concepts (19)

Surface plasmon

Surface plasmons (SPs) are coherent delocalized electron oscillations that exist at the interface between any two materials where the real part of the dielectric function changes sign across the interface (e.g. a metal-dielectric interface, such as a metal sheet in air). SPs have lower energy than bulk (or volume) plasmons which quantise the longitudinal electron oscillations about positive ion cores within the bulk of an electron gas (or plasma). The charge motion in a surface plasmon always creates electromagnetic fields outside (as well as inside) the metal.

Surface plasmon resonance

Surface plasmon resonance (SPR) is a phenomenon that occurs where electrons in a thin metal sheet become excited by light that is directed to the sheet with a particular angle of incidence, and then travel parallel to the sheet. Assuming a constant light source wavelength and that the metal sheet is thin, the angle of incidence that triggers SPR is related to the refractive index of the material and even a small change in the refractive index will cause SPR to not be observed.

Surface plasmon polariton

Surface plasmon polaritons (SPPs) are electromagnetic waves that travel along a metal–dielectric or metal–air interface, practically in the infrared or visible-frequency. The term "surface plasmon polariton" explains that the wave involves both charge motion in the metal ("surface plasmon") and electromagnetic waves in the air or dielectric ("polariton"). They are a type of surface wave, guided along the interface in much the same way that light can be guided by an optical fiber.

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An RCWA Analysis of Solar Cell Back Reflectors: Comparison between Modelling and Experiment

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