Improving the radiation hardness of space solar cells via nanophotonic light trapping
| Autor: | Y. Al-Saleh, Vincenzo Giannini, Avi Braun, Hubert Hauser, Tomos Thomas, Alexander Mellor, N. P. Hylton, Ch. Wellens, Stefan A. Maier, Nicholas J. Ekins-Daukes |
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| Přispěvatelé: | Commission of the European Communities, European Space Agency / Estec, Imperial College London |
| Rok vydání: | 2016 |
| Předmět: |
Technology
Materials science Energy & Fuels Nanophotonics 02 engineering and technology engineering.material 01 natural sciences Physics Applied law.invention 010309 optics chemistry.chemical_compound Engineering Optics Coating law 0103 physical sciences Solar cell Absorption (electromagnetic radiation) Radiation hardening Photocurrent Science & Technology business.industry Physics Photoconductivity Engineering Electrical & Electronic CARRIER TRANSPORT CALCULATIONS 021001 nanoscience & nanotechnology chemistry Physical Sciences engineering Optoelectronics 0210 nano-technology business Indium gallium arsenide |
| Zdroj: | 43rd IEEE Photovoltaic Specialists Conference |
| Popis: | We show that the radiation-hardness of space solar cells can be significantly improved by employing nanophotonic light trapping. Two light-trapping structures are investigated in this work. In the first, an array of Al nanoparticles is embedded within the anti-reflection coating of a GaInP/InGaAs/Ge solar cell. A combined experimental and simulation study shows that this structure is unlikely to lead to an improvement in radiation hardness. In the second, a diffractive structure is positioned between the middle cell and the bottom cell. Computational results, obtained using an experimentally validated electro-optical simulation tool, show that a properly designed light-trapping structure in this position can lead to a relative 10% improvement in the middle-cell photocurrent at end-of-life. |
| Databáze: | OpenAIRE |
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