Spectrally Selective Solar Cells for Simultaneous Use of Photosynthesis and Photovoltaics
| Autor: | Osterthun, N., Steenhoff, V., Neugebohrn, N., Gehrke, K., Vehse, M., Agert, C. |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| DOI: | 10.4229/35theupvsec20182018-1cv.4.52 |
| Popis: | 35th European Photovoltaic Solar Energy Conference and Exhibition; 180-183 Photosynthesis of green algae and plants needs mainly red and blue light in chlorophyll. One possible way for combining photosynthesis and photovoltaics is to transmit this light, while the remaining light can be used for electricity generation. The straight forward solution to this problem is to use a high band gap absorber, so that only UV-light is utilized. However, this would imply that a great amount of photons of the solar spectrum remains unused. A solar cell concept that enables spectrally selective transmission could significantly increase efficiency. In this contribution, we present a solar cell design which transmits light around 480 nm and 680 nm for photosynthesis while generating electricity from the remaining spectrum. We demonstrate the concept of a spectrally selective solar cell utilizing a novel back reflector. This reflector is based on a tunable cavity determining the optical properties. Simulations as well as first experimental realizations of the reflector itself and of the solar cell are shown. |
| Databáze: | OpenAIRE |
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