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31 August 2015 Controlling optical absorption in metamaterial absorbers for plasmonic solar cells
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Metals in the plasmonic metamaterial absorbers for photovoltaics constitute undesired resistive heating. However, tailoring the geometric skin depth of metals can minimize resistive losses while maximizing the optical absorbance in the active semiconductors of the photovoltaic device. Considering experimental permittivity data for InxGa1-xN, absorbance in the semiconductor layers of the photovoltaic device can reach above 90%. The results here also provides guidance to compare the performance of different semiconductor materials. This skin depth engineering approach can also be applied to other optoelectronic devices, where optimizing the device performance demands minimizing resistive losses and power consumption, such as photodetectors, laser diodes, and light emitting diodes.
Conference Presentation
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Wyatt Adams, Ankit Vora, Jephias Gwamuri, Joshua M. Pearce, and Durdu Ö. Güney "Controlling optical absorption in metamaterial absorbers for plasmonic solar cells", Proc. SPIE 9546, Active Photonic Materials VII, 95461M (31 August 2015);

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