We report design and experimental realization of an organic PV device structure to trap incident light in all polarization states utilizing 1D, long-pitch (> 1000 nm) gratings. Polarization diversity was achieved by balancing the plasmonic and guided mode-based light trapping routes between different polarization states. The experiment showed strong enhancements in absorption in all polarization states and translate into a 15~25% increase in the power conversion efficiency.

© 2013 Optical Society of America

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