Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6534125 | Solar Energy Materials and Solar Cells | 2018 | 6 Pages |
Abstract
In an effort to reduce the radiation degradation of triple-junction solar cells, imbedded photon management is investigated as a means for reducing the middle subcell thickness while maintaining output. The (In)GaAs subcells of the conventional lattice-matched InGaP/(In)GaAs/Ge triple-junction solar cells with back-side light-reflecting structures were simulated. Subcells with two-dimensional dielectric moth-eye reflection grating show promising results: more than 70% of incident in-band light is reflected into the non-zero diffraction orders which allows the thickness of the subcell to be decreased from 3.5 to 1.25â¯Âµm. This reduction of the subcell thickness substantially enhances the radiation hardness of the multi-junction solar cell.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
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Authors
Nizami Z. Vagidov, Kyle H. Montgomery, Geoffrey K. Bradshaw, David A. Wilt,