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DOE OSTI · 1660177

PERC silicon PV infrared to ultraviolet optical model

Subedi, Indra·Silverman, Timothy·Deceglie, Michael·Podraza, Nikolas J.
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Abstract

Here, optical modeling of aluminum back surface field (Al-BSF) and passivated emitter and rear contact (PERC) silicon wafer solar cells are extended into the infrared wavelength range (300–2500 nm). The model incorporates ray tracing to account for pyramidal texture of the front silicon surface, free carrier absorption in the front emitter; bulk silicon wafer, BSF; and Lambertian scattering at the silicon back contact. Total reflectance of pyramidal textured cells with different contact geometries with and without encapsulation are simulated. Simulated reflectance and short circuit current density match well with experimental values. These physics-based optical models serve as input for evaluating optical and thermal management strategies for silicon wafer solar cells.

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14 SOLAR ENERGYPERC cellsinfrared reflectanceray tracingscalar scatteringsilicon solar cellthermal management

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Subedi, Indra, Silverman, Timothy, Deceglie, Michael, Podraza, Nikolas J.. 2020-09-01. PERC silicon PV infrared to ultraviolet optical model. https://doi.org/10.1016/j.solmat.2020.110655

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