Optical Modeling of Honeycomb Textures for Multicrystalline Silicon Solar Cells
Peters IM, Hauser H, Tucher N, Blaesi B (2016)
Publication Type: Journal article
Publication year: 2016
Journal
Book Volume: 6
Pages Range: 1480-1487
Article Number: 7580605
Journal Issue: 6
DOI: 10.1109/JPHOTOV.2016.2609641
Abstract
Honeycomb textures provide excellent reflectance reduction for multicrystalline silicon solar cells. Achieved reflectance levels are comparable or even superior to those of pyramidal textures for monocrystalline silicon. Honeycombs were used to achieve record efficiencies for multicrystalline silicon solar cells. In this paper, we present an analytical optical model for the calculation of the front surface reflectance of honeycomb-textured silicon wafer solar cells in air environment and in a module. Reflectance is calculated using an analytical path tracer for a geometric representation of the texture's symmetry. Light trapping in the module is calculated using a retro-reflection model. We evaluate the approach for a selected set bare and antireflection-coated samples against air and for encapsulated samples. For the used samples, we show that as little as 1% of the net incoming photons are reflected at the solar cell-air interface. Compared with state-of-the-art isotextures, the presented honeycomb textures reduce the net reflectance loss in a photovoltaic (PV) module from 0.8 to 0.3 mA/cm2.
Involved external institutions
Massachusetts Institute of Technology (MIT)
United States (USA) (US)
Fraunhofer-Institut für Solare Energiesysteme (ISE) / Fraunhofer Institute for Solar Energy Systems
Germany (DE)
United States (USA) (US)
Fraunhofer-Institut für Solare Energiesysteme (ISE) / Fraunhofer Institute for Solar Energy Systems
Germany (DE)
How to cite
APA:
Peters, I.M., Hauser, H., Tucher, N., & Blaesi, B. (2016). Optical Modeling of Honeycomb Textures for Multicrystalline Silicon Solar Cells. IEEE Journal of Photovoltaics, 6(6), 1480-1487. https://doi.org/10.1109/JPHOTOV.2016.2609641
MLA:
Peters, Ian Marius, et al. "Optical Modeling of Honeycomb Textures for Multicrystalline Silicon Solar Cells." IEEE Journal of Photovoltaics 6.6 (2016): 1480-1487.
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