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7 May 2018 All dielectric and plasmonic cross-grating metasurface for efficient perovskite solar cells
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Recently, organic perovskite solar cell has achieved remarkable increase in its efficiency, and reached over 22% in 2017. However, its efficiency could be increased further using nanophotonic techniques for guiding incident light to perovskite active layer. Metasurface cross grating nanostructure would control light reflection and transmission over wide range of wavelength. Using metasurface with perovskite solar cell, will increase generated photocurrent and enhance overall efficiency. Our results show that light absorption enhancement and light reflection reduction are highly depending on dimensions, periodicity and coated material used of metasurface cross grating nanostructures. Controlling electric and magnetic dipoles in gold metasurface and Mie resonance dipoles in dielectric coating material would enhance generated photocurrent over planar perovskite structure. Comparison between plasmonic and all dielectric metasurface performance would give us more understanding for light reflection reduction mechanism. Using three-dimensional optical modeling based on finite element method simulation tool for all our results would enhance its accuracy. For verifying our results, we made comparison between our results and previously reported work for planar perovskite solar and good matching achieved in light absorption and generated current. Adding suggested plasmonic and dielectric metasurface cross grating nanostructures inside perovskite solar cells, will enhance its overall efficiency.
Conference Presentation
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Omar A. M. Abdelraouf, Ahmed Shaker, and Nageh K. Allam "All dielectric and plasmonic cross-grating metasurface for efficient perovskite solar cells", Proc. SPIE 10671, Metamaterials XI, 1067120 (7 May 2018);

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