Wet-Chemically Textured Ultra-Thin GaAs Solar Cells with Dielectric/Metal Rear Mirrors
| Autor: | Gerard Bauhuis, John J. Schermer, Maarten van Eerden, Peter Mulder, Natasha Gruginskie, Marco Passoni, Elias Vlieg, Lucio Claudio Andreani |
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| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Materials science business.industry 02 engineering and technology Dielectric 021001 nanoscience & nanotechnology 01 natural sciences Electrical contacts Dielectric mirror 0103 physical sciences Optoelectronics Quantum efficiency Wafer Texture (crystalline) 0210 nano-technology Luminescence business Ohmic contact |
| Zdroj: | 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC). |
| DOI: | 10.1109/pvsc40753.2019.8981328 |
| Popis: | The rear-side contact layer of ultra-thin GaAs solar cells was textured using a simple, one-step wet chemical approach. A ZnS/Ag double layer was conformally deposited to function as a diffusive rear mirror. Local Ohmic contact points provided electrical contact directly to the Ag. The textured solar cells were compared with planar reference cells fabricated on the same wafer and a clear enhancement of long-wavelength quantum efficiency and short-circuit current was observed in the textured cells. Both architectures showed FF > 80% and V OC > 1 V. Additionally, the rear-side texture increases the external luminescent efficiency by enhancing outcoupling of luminescence. |
| Databáze: | OpenAIRE |
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